rumdl

Added

• Comprehensive markdown flavor support

  • GFM flavor: Security-sensitive HTML tag detection in MD033, extended autolinks including xmpp: protocol in MD034
  • MkDocs flavor: mkdocstrings block support, extended markdown syntax (keys [[Ctrl]], caret ^^sup^^, mark ==highlight==, ins ++inserted++, tilde ~sub~)
  • MDX flavor: JSX attribute detection (className, htmlFor, onClick, etc.), JSX expression handling, ESM import/export support
  • Quarto flavor: Pandoc citation syntax (@ref, [@ref]), shortcode detection ({{< >}}), div blocks and callouts (::: {.callout-*}), math block handling for emphasis rules

• Comprehensive UTF-8 stress tests

  • Systematic testing of all rules against 11 scripts (Bengali, Arabic, Chinese, Japanese, Korean, Thai, Hindi, Russian, Greek, Emoji, ZWJ sequences)
  • Tests for check(), fix(), and fix range character boundaries
  • Catches UTF-8 panics before they reach production

Fixed

• MD034: UTF-8 panic with multi-byte text before emails

  • Fixed crash when email follows Bengali, Chinese, Arabic, or other multi-byte UTF-8 text
  • The xmpp: prefix check was slicing at invalid character boundaries
  • Discovered during testing against kubernetes/website

• MD031: Blank line detection after MkDocs admonition blocks

  • Corrected blank line requirements after admonition content

• MkDocs: Nested admonition handling

  • Implemented stack-based detection for properly nested admonitions

Changed

• Documentation: Split flavor docs into separate files
  • docs/flavors.md is now a concise overview with links
  • Each flavor has its own file: docs/flavors/standard.md, gfm.md, mkdocs.md, mdx.md, quarto.md
  • Easier to find, reference, and maintain flavor-specific documentation

Downloads

File	Platform	Checksum
rumdl-v0.0.219-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.219-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.219-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.219-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.219-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.219-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.219-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• Style Guide Preset examples
  • Google Markdown style guide config (examples/google-style.toml)
  • Prettier-compatible markdown config (examples/prettier-style.toml)

Fixed

• MD032: Eliminate false positives on real-world repos

  • Tested against Rust Book (478 files) and MDN Content (14,100 files) with zero false positives
  • Treat HTML comments as transparent for blank line checks
  • Skip blank line warning when exiting blockquotes (boundary provides separation)
  • Handle prose numbered items like "Chapter 19." (sentence continuation detection)
  • Fix lazy continuation for code span continuations and nested sublists
  • Remove incorrect uppercase heuristic that was closing lists prematurely

• Config: Correct rule alias mappings

  • Add descriptive-link-text alias for MD059
  • Fix table-cell-alignment alias to map to MD060 (was incorrectly MD059)

• Config: Warn on per-file-ignores patterns with commas

  • Detects when patterns contain commas without braces
  • Suggests correct glob syntax: {*.md,*.txt} instead of *.md,*.txt

Downloads

File	Platform	Checksum
rumdl-v0.0.218-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.218-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.218-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.218-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.218-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.218-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.218-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD064: max-consecutive-spaces config option (fixes #294)

  • New option to allow configurable consecutive space threshold
  • max-consecutive-spaces = 2 allows traditional two-space sentence spacing
  • Default remains 1 (flags any 2+ consecutive spaces)

• Comprehensive Markdown flavor documentation

  • New docs/flavors.md with detailed flavor support guide
  • Coverage of MkDocs, MDX, Quarto, GitHub, and Standard flavors

Fixed

• MD032: Detect lazy continuation in nested lists (fixes #295)

  • Lazy continuation lines in nested lists are now correctly identified
  • Uses content_column from ListItemInfo to calculate proper indent threshold

• MD032: Detect blockquote level changes as list breaks

  • Lines with different blockquote nesting levels now properly break lists
  • Prevents false positives when list items span blockquote boundaries

• MD033: Calculate correct end_line for multiline HTML tags

  • HTML tags spanning multiple lines now report accurate end positions
  • Improves LSP diagnostic highlighting for multiline HTML elements

• Config warnings show relative paths instead of absolute (fixes #291)

  • Config warning messages now use project-relative paths
  • Makes error messages cleaner and more portable

• Core correctness and performance improvements

  • Various fixes for edge cases in line processing
  • Performance optimizations in lint context creation

Community

• Opened official Discord server for the rumdl community (thanks @pygarap for the suggestion in #281)
  • Join at https://discord.gg/ADTJFSFUyn
  • Channels: #general, #announcements, #help, #development
  • Release notifications automatically posted via GitHub webhook

Downloads

File	Platform	Checksum
rumdl-v0.0.217-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.217-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.217-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.217-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.217-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.217-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.217-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD072: Custom key order for frontmatter sorting (fixes #290)
  • New key-order config option to define preferred key ordering
  • Keys in the order list appear first, unlisted keys sort alphabetically after
  • Example: key-order = ["title", "date", "author"] puts title first

Fixed

• MD060: Preserve blockquote prefix when formatting tables

  • Tables inside blockquotes (e.g., > | A | B |) now correctly preserve the prefix
  • Supports nested blockquotes (>>, >>>) with proper prefix preservation
  • Works with all formatting styles (aligned, compact, tight)

• MD057: Skip link patterns inside LaTeX math spans (fixes #289)

  • Link-like patterns inside $...$ or $$...$$ are no longer flagged as broken links
  • Prevents false positives from LaTeX commands that resemble markdown links

• MD030: Skip empty marker lines without content (fixes #288)

  • Lines with only a list marker (no content) are now skipped
  • Prevents incorrect warnings about spacing on empty list items

• MD031/MD032/MD058/MD065: Auto-fix preserves nested blockquote prefix (fixes #268)

  • When inserting blank lines in blockquotes, the blockquote prefix is now preserved
  • Works correctly with nested blockquotes (>>, >>>)
  • Blank blockquote lines use > without trailing space (per markdownlint-cli)

• MD005/MD007: Prevent oscillation between rules

  • Ordered and unordered list items are now tracked in separate groups
  • Fixes cases where MD005 and MD007 would fight over indentation

Downloads

File	Platform	Checksum
rumdl-v0.0.216-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.216-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.216-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.216-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.216-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.216-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.216-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD057: Exclude footnote definitions from relative link checking (fixes #286)

  • Footnote definitions ([^id]: content) were incorrectly parsed as reference link definitions
  • This caused MD057 to treat footnote content as URLs (e.g., [^1]: [link](https://example.com) was flagged as broken link)
  • Footnotes are now correctly identified and excluded from reference definition parsing
  • Also benefits MD053 (unused reference definitions) which uses the same parsing

• MD005: Auto-fix preserves blockquote prefix (fixes #268)

  • When fixing list indentation inside blockquotes, the > prefix is now preserved
  • Previously, auto-fix could break blockquote structure

Downloads

File	Platform	Checksum
rumdl-v0.0.215-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.215-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.215-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.215-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.215-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.215-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.215-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• Per-file flavor configuration (fixes #283)
  • Configure different markdown flavors for specific file patterns using glob patterns
  • Example: "docs/**/*.md" = "gfm" in [global.file-flavors] section
  • Supports all flavor values: commonmark, gfm, mkdocs, obsidian, mdbook
  • File patterns are matched against relative paths from project root

Fixed

• MD028: Skip GFM alerts when checking blank lines in blockquotes (fixes #126)

  • GFM alerts (> [!NOTE], > [!TIP], > [!IMPORTANT], > [!WARNING], > [!CAUTION]) require blank line separation to render correctly
  • MD028 now detects GFM alerts and allows blank lines between them
  • Case-insensitive detection supports both [!NOTE] and [!note]
  • Regular blockquotes between GFM alerts are still flagged correctly

• MD032: Auto-fix handles varying blockquote whitespace (fixes #268)

  • Auto-fix no longer breaks blockquote structure when lines have different spacing
  • Properly handles mixed > and > prefixes within the same blockquote

• MD032: Detect blockquotes before skip conditions (fixes #284, #285)

  • Blockquote detection now runs first, preventing false positives inside blockquotes
  • Fixes cases where multi-paragraph list items in blockquotes triggered warnings

Downloads

File	Platform	Checksum
rumdl-v0.0.214-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.214-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.214-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.214-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.214-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.214-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.214-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD031/MD046: Detect code blocks inside lists (fixes #276)

  • MD031 with list-items=true now correctly flags fenced code blocks inside lists
  • MD046 with style=fenced now correctly flags indented code blocks inside lists
  • Uses pulldown-cmark for accurate CommonMark-compliant code block detection
  • Properly distinguishes between code blocks and footnote/admonition/tab content

• MD057: Check reference-style link definitions for broken links (fixes #274)

  • Reference-style link definitions like [ref]: ./path.md are now checked
  • Previously only inline links [text](./path.md) were validated
  • All existing validations apply: external URLs skipped, .html→.md fallback, URL decoding

• MD007: "Do What I Mean" behavior for indent configuration (fixes #273)

  • When indent is explicitly set without style, automatically use fixed style
  • Setting indent = 4 now actually uses 4-space increments as expected
  • Warning shown if both indent and style = "text-aligned" are set (contradictory)

• MD030: Prevent false positives in math blocks (fixes #275)

  • Math blocks ($$...$$) are now detected and excluded from list marker spacing checks
  • Fixes incorrect warnings about list spacing inside LaTeX display math

Downloads

File	Platform	Checksum
rumdl-v0.0.213-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.213-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.213-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.213-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.213-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.213-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.213-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• CLI: Show relative file paths in output by default (fixes #266)
  • Add --show-full-path flag to opt into absolute paths
  • All output formats (text, JSON, SARIF, GitHub, GitLab, JUnit) now consistently use paths relative to project root or CWD

Fixed

• LSP: Respect FormattingOptions in formatting handler (fixes #265)

  • insertFinalNewline: Add trailing newline if missing
  • trimFinalNewlines: Remove extra trailing newlines at EOF
  • trimTrailingWhitespace: Remove trailing whitespace from all lines
  • Applies FormattingOptions after lint fixes to match editor preferences

• Fix coordinator: Re-check all rules after each fix for idempotency (fixes #271)

  • rumdl check --fix now produces idempotent results
  • After each fix, all rules are re-checked with fresh LintContext
  • Handles cascading fixes (e.g., MD046 → MD040) in a single run

• MD046: Preserve code indentation and skip MkDocs admonitions (fixes #269, #270)

  • Converting fenced to indented code blocks now preserves internal indentation
  • MkDocs admonitions (!!! note, ??? warning, ???+ tip) are properly skipped

• MD012: Fix EOF blank line removal in LSP formatting (fixes #264)

  • Warning's fix replacement now correctly removes blank lines at EOF

• MD072: Improved frontmatter key sorting (fixes #265)

  • Use line-based reordering to preserve original YAML formatting
  • Fixed config warning about "unknown option: enabled"
  • Compute fix in check() to enable LSP formatting

Downloads

File	Platform	Checksum
rumdl-v0.0.212-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.212-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.212-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.212-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.212-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.212-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.212-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD032: Handle blockquote continuation lines correctly (fixes #260)

  • Blockquote continuation lines within the same blockquote level no longer incorrectly trigger "list should be surrounded by blank lines" warnings
  • Changed detection from checking if line starts with > to comparing blockquote nesting levels
  • Lists inside blockquotes like > - item\n> continuation now lint correctly

• MD071: Preserve trailing newlines when fixing frontmatter spacing (fixes #262)

  • Auto-fix no longer removes the file's trailing newline
  • Prevents MD047 (files should end with newline) from triggering after MD071 fix

Changed

• Rules: Add aliases for MD070, MD071, MD072
  • MD070: nested-code-fence-collision
  • MD071: blank-line-after-frontmatter
  • MD072: frontmatter-key-sort

Downloads

File	Platform	Checksum
rumdl-v0.0.211-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.211-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.211-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.211-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.211-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.211-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.211-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD071: Blank line after frontmatter (new rule)

  • Enforces a blank line between frontmatter closing delimiter and document content
  • Supports YAML (---) and TOML (+++) frontmatter formats
  • Auto-fixable

• MD072: Frontmatter key sort (new rule, disabled by default)

  • Checks that frontmatter keys are sorted alphabetically
  • Supports YAML and TOML frontmatter
  • Configurable ignore list for keys to exclude from sorting
  • Enable with MD072.enabled = true in configuration
  • Auto-fixable

Fixed

• MD022: Support kramdown Inline Attribute Lists (fixes #259)

  • IAL syntax like {: .class #id} immediately after headings no longer triggers blank line warnings
  • IAL lines are treated as part of the heading element
  • Multiple consecutive IAL lines supported
  • Fix function preserves IAL attachment to headings

• MD046: Use pulldown-cmark for code block detection

  • More reliable code block detection using CommonMark-compliant parser
  • Fixes edge cases with nested and consecutive code blocks

• MD072: Fix JSON depth tracking and regex initialization

  • Use LazyLock for regex to avoid recompilation
  • Fix JSON nested object depth tracking when extracting keys

• MD072: Stop at TOML table headers when extracting keys

  • TOML table headers like [section] now properly terminate key extraction

Downloads

File	Platform	Checksum
rumdl-v0.0.210-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.210-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.210-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.210-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.210-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.210-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.210-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD070: Nested code fence collision detection (new rule)
  • Detects when inner code fences would prematurely close outer fences
  • Example: outer ``` containing inner ``` causes collision
  • Suggests using longer fences (````) for outer blocks
  • Configurable languages option to limit checking to specific info strings (default: ["", "markdown", "md"])
  • Auto-fix increases fence length to prevent collisions

Fixed

• MD040: Fix false positives on list-indented code blocks (fixes #257)

  • Refactored to use pulldown-cmark for CommonMark-compliant code block detection
  • List-indented closing fences no longer incorrectly flagged as missing language
  • Eliminates manual fence state tracking that failed for consecutive code blocks

• CLI: Support respect-gitignore in config files (fixes #258)

  • Added respect-gitignore option to [global] section in .rumdl.toml and pyproject.toml
  • CLI flag --respect-gitignore=false syntax now works (previously only --no-respect-gitignore)

• Release: Fix pre-built aarch64-linux binaries for 16K page systems (fixes #256)

  • Pre-built binaries for aarch64-unknown-linux-gnu and aarch64-unknown-linux-musl now work on Asahi Linux and Raspberry Pi 5
  • Set JEMALLOC_SYS_WITH_LG_PAGE=16 to configure jemalloc for 64K page compatibility
  • Previously crashed with "Unsupported system page size" on systems with 16K or 64K pages

• List detection: Filter out YAML/TOML lists in frontmatter

  • Frontmatter arrays like tags: [foo, bar] no longer incorrectly detected as markdown lists
  • Fixes false positives in MD004, MD005, MD007, MD030, and other list-related rules

• List detection: Handle nested list items and tab indentation

  • Nested items where content begins on the next line are now correctly parsed
  • Tab-indented nested lists now properly detected and validated

• MD030: Eliminate false positives on hard-wrapped citations and continuations (fixes #253)

  • Replaced manual regex-based list detection with pulldown-cmark parser for context-aware list item detection
  • Hard-wrapped citation continuations like (Doe 2003, p.\n 1234) no longer trigger false positives
  • Resolves LSP formatting infinite loop (adding trailing space → MD009 → removing space → MD030)
  • Added 16 comprehensive edge case tests covering citations, blockquoted lists, URLs, ISBNs, and mathematical expressions

• Heading detection: Prevent list items from being detected as setext headings (fixes #254)

  • Per CommonMark spec 4.3, setext heading content cannot be a list item, ATX heading, blockquote, thematic break, code fence, or HTML block
  • Incomplete list items (e.g., - Orange followed by -) no longer incorrectly detected as level 2 headings
  • Eliminates false positives in all heading-related rules (MD041, MD022, MD023, MD024, MD025, MD026, MD003, MD043)
  • Added comprehensive validation for all CommonMark setext heading exclusions

• Output formatters: Correct severity field in JSON, JSON Lines, and Azure Pipelines formats

  • Fixed bug where severity was always output as "error" regardless of actual severity level
  • JSON/JSON Lines/Azure formatters now correctly output "error", "warning", or "info" based on actual severity

Downloads

File	Platform	Checksum
rumdl-v0.0.209-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.209-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.209-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.209-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.209-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.209-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.209-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Changed

• Reflow: Replace manual emphasis parsing with pulldown-cmark
  • Use pulldown-cmark for CommonMark-compliant emphasis, bold, and strikethrough detection
  • Removes ~100 lines of complex manual regex-based emphasis detection
  • Adds GFM strikethrough (~~text~~) support to sentence boundary detection

Fixed

• Reflow: Continue emphasis markers across sentence splits (fixes #251)

  • When splitting emphasized text at sentence boundaries, each line now properly retains its emphasis markers
  • Example: *Sentence one. Sentence two.* now correctly splits to *Sentence one.* and *Sentence two.*

• Reflow: Fix line_length=0 to mean "no wrapping"

  • Previously line_length=0 would wrap after every word due to condition always being true
  • Now correctly treats 0 as "unlimited line length" (no wrapping)

• MD007: Resolve false positives on nested unordered lists in ordered lists (fixes #247)

  • Nested unordered lists inside ordered lists now calculate expected indent based on parent's content column
  • Fixes ping-pong bug where MD007 fix would then trigger MD005, destroying nesting structure

• MD009: Correct byte offset calculation for multi-byte characters

  • Column positions now correctly account for UTF-8 multi-byte characters
  • Fixes incorrect warning positions when lines contain non-ASCII characters

• MD027: Continue HTML block detection until blank line after closing tag

  • CommonMark type 6 HTML blocks (like <table>) now correctly extend until the first blank line
  • Prevents false positives for blockquote indentation inside HTML tables

• MD034: Resolve false positives for URLs in angle brackets and parentheses

  • URLs inside angle brackets (<https://example.com>) no longer trigger bare URL warnings
  • URLs inside parentheses with descriptions are properly handled

• MD037: Mask inline math spans before emphasis detection

  • Asterisks inside inline math ($p * q$) no longer interfere with emphasis detection
  • Fixes false negatives where valid * spaced emphasis * was not detected

• MD051: URL-decode CJK fragments before anchor matching

  • Japanese, Korean, and Chinese heading fragments are now properly matched
  • URL-encoded fragments (e.g., #%E6%97%A5%E6%9C%AC%E8%AA%9E) correctly resolve to decoded anchors

• MD057: Resolve false positives for email addresses and file references

  • Email-style patterns and file references with @ symbols no longer trigger GitHub username warnings

• MD069: Resolve false positives for nested strikethrough

  • Properly handles strikethrough markers that appear in nested contexts

• Config: Handle relative paths in find_project_root_from

  • Configuration discovery now works correctly with relative file paths

• Reflow: Preserve Hugo shortcodes as atomic elements

  • Hugo shortcodes ({{< >}} and {{% %}}) are no longer broken across lines during text reflow

Downloads

File	Platform	Checksum
rumdl-v0.0.208-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.208-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.208-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.208-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.208-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.208-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.208-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• CLI: Add --flavor option to override markdown flavor
  • New CLI flag allows overriding the markdown flavor for a single run
  • Options: commonmark, gfm (GitHub Flavored Markdown)
  • Useful for testing files against different markdown specifications

Fixed

• MD029: Respect CommonMark list start values and preserve user intent (fixes #247)

  • Ordered lists starting at values other than 1 (e.g., 11., 12., 13.) are now validated correctly
  • Auto-fix no longer destroys user intent by changing 11. to 1. in properly numbered lists
  • Lists with start attribute > 1 will warn but not auto-fix, preserving semantic numbering

• WASM: Convert byte-based columns to character offsets for JavaScript

  • Column positions in WASM output now use character offsets instead of byte offsets
  • Fixes incorrect highlighting in editors when files contain multi-byte UTF-8 characters

Changed

• Docs: Add mise as an installation option
  • README now includes mise (formerly rtx) as an alternative installation method

Downloads

File	Platform	Checksum
rumdl-v0.0.207-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.207-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.207-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.207-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.207-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.207-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.207-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD013: Apply inline config before should_skip optimization (fixes #241)

  • Inline configuration (e.g., <!-- markdownlint-configure-file {"MD013": {"tables": false}} -->) was not being applied when files had short lines
  • The should_skip optimization now uses effective config after parsing inline overrides

• CLI: Warn about unknown rules in --enable/--disable flags (fixes #243)

  • Using non-existent rule names now produces a warning instead of silently ignoring them
  • Invalid rules in all config entry points (CLI flags, config files) are now validated

• MD034: Fix panic with multi-byte URLs and unbalanced parentheses

  • URLs containing non-ASCII characters (e.g., Chinese Wikipedia URLs) followed by unbalanced parentheses no longer cause a panic
  • Fixed by using byte indices instead of character indices for string slicing

Downloads

File	Platform	Checksum
rumdl-v0.0.206-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.206-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.206-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.206-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.206-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.206-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.206-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD037: Skip multi-line inline code spans

  • Asterisks inside code spans that cross line boundaries no longer trigger false positives
  • Uses pulldown-cmark for accurate multi-line code span detection

• MD031: Don't require blank line after frontmatter

  • Code blocks and admonitions immediately after YAML/TOML frontmatter no longer trigger warnings
  • Matches markdownlint behavior for frontmatter handling

• MD034: Handle URLs with parentheses in path (fixes #240)

  • URLs like https://example.com/page_(1) no longer incorrectly flag the closing parenthesis
  • Centralized URL pattern handling for consistent behavior

• MD046: Detect mixed whitespace indented code blocks

  • Indented code blocks using tabs or mixed whitespace are now properly detected
  • 4-space indented fences correctly identified as indented code blocks

• Heading fixes: Preserve original whitespace

  • Auto-fix for heading rules now preserves the original spacing around heading text

• CLI: Support rule aliases in --enable/--disable flags

  • Rule aliases (e.g., blanks-around-fences for MD031) now work with CLI flags

Changed

• Regex patterns: Centralize URL detection

  • Consolidated URL patterns with documentation for maintainability
  • Removed unused URL_REGEX and BARE_URL_REGEX

• Tab expansion: Consolidate into shared utility

  • CommonMark-compliant tab expansion now uses shared visual_indent utility
  • Consistent indentation detection across all rules

Downloads

File	Platform	Checksum
rumdl-v0.0.205-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.205-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.205-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.205-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.205-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.205-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.205-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD007: Use per-parent indent logic instead of document-wide style

  • Fixed incorrect warnings when nested lists had different indentation styles
  • Each parent list item now independently tracks its children's indentation

• MD022: Distinguish horizontal rules from frontmatter delimiters

  • HR patterns (---, ***, ___) after headings no longer incorrectly trigger blank line warnings
  • Centralized HR detection in LineInfo for consistent behavior across rules

• LSP: Unify cross-file link extraction with MD057

  • LSP diagnostics now report correct column positions for MD057 warnings
  • Created shared extract_cross_file_links utility used by both CLI and LSP
  • Ensures consistent position tracking between editor and command-line

Downloads

File	Platform	Checksum
rumdl-v0.0.204-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.204-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.204-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.204-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.204-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.204-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.204-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• Config: Implement Ruff-style config inheritance model

  • User config (~/.config/rumdl/) now serves as base, project config extends it
  • Project-level enable/disable are additive to user config by default
  • Clear precedence: CLI flags > project config > user config > defaults

• MD001: Recognize frontmatter title as implicit H1

  • Documents with title: in YAML frontmatter no longer require an H1 heading
  • Aligns with common static site generator behavior (Jekyll, Hugo, etc.)

Fixed

• MD057/MD051: Skip wikilinks in cross-file validation (fixes #235)

  • Wikilinks ([[page]]) were incorrectly triggering "relative link does not exist" warnings
  • Wikilinks use a different linking system (Obsidian, etc.) and should not be validated as file paths

• MD057: Fix LSP diagnostic position for cross-file links (fixes #234)

  • LSP was pointing to link text [...] instead of URL (...)
  • Now correctly highlights the URL portion in editor diagnostics

• MD012: Remove all trailing blank lines at EOF

  • Previously only removed one trailing blank line per fix pass
  • Now removes all consecutive trailing blank lines in a single fix

• Config: Add missing aliases for MD062/MD064/MD065 rules (fixes #232)

  • Added kebab-case aliases for newer rules
  • Fixed MD069 typo in alias registration

• CLI: Fail fast when --config conflicts with --no-config/--isolated

  • These flags are contradictory and now produce a clear error instead of silently ignoring one

• Cross-file validation: Fix duplicate warnings for same link

  • MD051 and MD057 both contribute links to the workspace index with different column positions
  • Deduplication now ignores column differences, preventing duplicate warnings

Downloads

File	Platform	Checksum
rumdl-v0.0.203-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.203-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.203-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.203-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.203-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.203-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.203-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD069 (no-duplicate-list-markers): Detect accidental duplicate list markers (fixes #227)

  • Detects patterns like - - text that occur from copy-paste with editor auto-list-continuation
  • Supports all unordered markers: -, *, + and mixed combinations
  • Auto-fix removes the first marker: - - text → - text
  • Correctly ignores CLI flags (- --verbose), emphasis (* *italic*), and nested lists
  • Skips code blocks, frontmatter, and HTML comments

• MD032 (blanks-around-lists): Add allow-lazy-continuation config option

  • When enabled, allows list items to continue without blank lines in specific contexts
  • Useful for documentation styles that prefer compact list formatting

Fixed

• LSP: Make severity a first-class field on RuleConfig
  • Severity configuration now properly propagates through LSP diagnostics
  • Fixes issue where custom severity settings were not reflected in editor diagnostics

Changed

• Documentation improvements
  • Added .ignore file support documentation
  • Added LSP server documentation
  • Added footnote rules documentation and cache configuration
  • Added opt-in rules section to RULES.md

Downloads

File	Platform	Checksum
rumdl-v0.0.202-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.202-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.202-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.202-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.202-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.202-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.202-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• CLI: Add --fail-on flag to control exit code by severity

  • Configure minimum severity level that triggers non-zero exit code
  • Options: error (default), warning, info
  • --fail-on warning exits non-zero on warnings or errors
  • --fail-on info exits non-zero on any diagnostic
  • Useful for CI/CD pipelines with different strictness levels

• Severity: Add Info severity level for low-priority issues

  • New severity level below Warning for informational diagnostics
  • Allows rules to report suggestions without affecting exit codes by default
  • Can be promoted to affect exit codes via --fail-on info

• MD060 (table-column-count): Smart max-width inheritance from MD013

  • Automatically inherit max-width from MD013 line-length when not explicitly set
  • Reduces configuration duplication between MD013 and MD060
  • Explicit MD060 max-width still takes precedence

Fixed

• MD063 (heading-capitalization): Handle inline code at start of heading (fixes #228)

  • Headings starting with inline code (e.g., `code` text) now correctly apply sentence case to subsequent text
  • Previously, the word after inline code was incorrectly lowercased
  • Applies to all non-text segments (code, links, HTML) at heading start

• MD063 (heading-capitalization): Preserve acronyms and brand names in link text

  • Link text with internal capitals (e.g., [GitHub](url)) is now preserved
  • preserve_cased_words setting applies to link text, not just plain text
  • Prevents incorrect lowercasing of brand names within links

• MD063 (heading-capitalization): Handle inline HTML tags

  • Inline HTML tags like <kbd>, <abbr>, <code> are now recognized as separate segments
  • Prevents HTML tags from interfering with capitalization detection
  • Supports self-closing tags and tags with attributes

• MD063 (heading-capitalization): Preserve caret notation for control characters

  • Caret notation like ^A, ^C, ^Z (representing Ctrl+A, Ctrl+C, Ctrl+Z) is preserved
  • Prevents incorrect lowercasing of control character representations
  • Supports full range: ^@ through ^_ and ^A through ^Z

Downloads

File	Platform	Checksum
rumdl-v0.0.201-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.201-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.201-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.201-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.201-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.201-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.201-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• CLI: Add --no-defaults flag to rumdl config command (fixes #218)

  • Show only non-default configuration values, excluding defaults
  • Useful for seeing only customizations without the noise of default values
  • Works with both smart output (with provenance annotations) and --output toml/json formats
  • Mutually exclusive with --defaults flag
  • Displays helpful message when all configurations are using defaults
  • Supports filtering of global config, rule configs, and per-file-ignores

• SARIF: Map severity field to SARIF result levels

  • Error severity maps to SARIF "error" level
  • Warning severity maps to SARIF "warning" level
  • Improves integration with tools that consume SARIF output

• Testing: Add O(n²) complexity regression testing infrastructure

  • Detect potential quadratic time complexity issues in rules
  • Prevent performance regressions in line analysis algorithms

Fixed

• MD051 (link-fragments): Support extension-less cross-file links (GitHub-style) (fixes extension-less link validation)

  • Recognize extension-less paths with fragments as cross-file links (e.g., [link](page#section) → page.md#section)
  • Resolve extension-less paths by trying markdown extensions (.md, .markdown, .mdx, etc.)
  • Handles GitHub-style links that omit file extensions, matching GitHub's rendering behavior
  • Applied to both link detection and cross-file validation
  • Reduces false positives in repositories using extension-less links

• MD054 (link-image-style): Fix false positives for task lists and HTML tags (fixes false positive detection)

  • Skip validation for links/images inside task list items (e.g., - [ ] [link](url))
  • Skip validation for links/images inside HTML tags (e.g., <a href="url">text</a>)
  • Reduces false positives when links are part of task lists or HTML structures

• MD057 (link-target-exists): Skip email addresses and fix absolute path bug (fixes email and path handling)

  • Skip validation for email addresses (e.g., mailto:user@example.com)
  • Fix bug where absolute paths were incorrectly validated
  • Improves accuracy by correctly identifying email links vs file links

• MD063 (heading-capitalization): Respect lowercase-words when inline code/link is last segment (fixes #223)

  • When the last word in a heading is inline code or a link, respect lowercase-words configuration
  • Previously, inline code/link at the end was not checked against lowercase-words list
  • Ensures consistent capitalization rules apply to all heading segments

• MD007 (ul-indent): Fix indent=1 edge case and integrate edge case tests (fixes edge cases)

  • Fix handling of indent = 1 configuration edge cases
  • Integrate comprehensive edge case tests for better coverage
  • Improves reliability for non-standard indent configurations

• MD057 (link-target-exists): Point diagnostics to URL instead of link text (fixes #226)

  • LSP diagnostics now point to the actual non-existent URL rather than the link text
  • Fixes incorrect positioning in editors where diagnostics appeared at wrong location
  • Makes diagnostics semantically correct by highlighting the actual problem
  • Improves both CLI and LSP diagnostic accuracy

• File processor: Canonicalize file paths to prevent duplicate warnings

  • Normalize file paths to resolve symbolic links and relative paths
  • Prevents duplicate warnings when the same file is referenced via different paths
  • Improves accuracy when processing files via symlinks or relative paths

• Rules: Fixes for issues 219 and 220 (fixes #219, #220)

  • Fixes addressing edge cases and false positives
  • Improves overall rule accuracy and reliability

Performance

• MD007 (ul-indent): Cache mixed list nesting detection and optimize blank line checks
  • Cache results of mixed list nesting detection to avoid redundant calculations
  • Optimize blank line checks for better performance on large files
  • Reduces processing time for files with complex list structures

Changed

• Rules: Categorize severities by document impact

  • Reorganized rule severities into meaningful categories
  • Structure-critical rules (MD001, MD002, MD003, etc.) remain Error
  • Style-preference rules (MD004, MD007, MD029, etc.) now Warning
  • Better alignment between severity and actual impact on document quality

• Documentation: Add severity categorization section to RULES.md

  • Documents the reasoning behind severity assignments
  • Explains the distinction between structural errors and style warnings
  • Helps users understand why rules have their assigned severity levels

• Tests: Reorganize issue-specific tests into appropriate test files

  • Moved Issue #210 tests to tests/rules/md007_test.rs
  • Moved Issue #209 tests to tests/rules/md007_test.rs
  • Moved Issue #197 tests to tests/cli_integration_tests.rs
  • Removed issueXXX-named test files per project conventions

Downloads

File	Platform	Checksum
rumdl-v0.0.200-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.200-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.200-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.200-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.200-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.200-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.200-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD063 (heading-capitalization): Fix preserve-cased-words for iOS and ignore-words for first word (fixes #215, #216)
  • preserve-cased-words now correctly detects words starting with lowercase followed by uppercase (e.g., "iOS", "eBay")
  • ignore-words in sentence case now properly preserves words at the start of headings (e.g., "nvim" stays "nvim")
  • Previously, "iOS" was incorrectly converted to "ios" and "nvim config" became "Nvim config"

Changed

• Dependencies: Migrate from deprecated serde_yaml to serde_yml
  • Replace unmaintained serde_yaml 0.9.34 with maintained fork serde_yml 0.0.12
  • Eliminates deprecation warnings during compilation
  • Compatible API with no behavior changes

Downloads

File	Platform	Checksum
rumdl-v0.0.199-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.199-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.199-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.199-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.199-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.199-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.199-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD057 (link-target-exists): Support mdBook and doc site .html links
  • Links to .html files now correctly resolve when corresponding .md source exists
  • Handles mdBook, Jekyll, Hugo and similar doc generators that compile .md to .html
  • Applied to both single-file check() and cross-file validation
  • Reduces false positives in documentation projects like rustc-dev-guide

Downloads

File	Platform	Checksum
rumdl-v0.0.198-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.198-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.198-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.198-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.198-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.198-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.198-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• Config: Resolve per-file-ignores paths relative to project root (fixes #208)

  • Previously, per-file-ignores patterns only matched with relative paths
  • Now works correctly in GitHub Actions where absolute paths are used
  • Patterns like .github/file.md now match /home/runner/work/repo/.github/file.md

• MD007 (ul-indent): Remove auto-switch to fixed indentation style (fixes #209)

  • Fixed oscillation between MD005/MD007 when formatting mixed ordered/unordered lists
  • Previously, setting indent = 3 would auto-switch to fixed style, causing conflicts
  • Text-aligned style (default) now correctly handles mixed lists, matching markdownlint behavior
  • rumdl fmt now converges in a single pass for all list configurations

Performance

• Core: Reduce memory allocations and improve cache reliability
  • Optimized internal data structures for better memory efficiency

Downloads

File	Platform	Checksum
rumdl-v0.0.197-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.197-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.197-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.197-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.197-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.197-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.197-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD064 (no-multiple-consecutive-spaces): New rule to collapse multiple consecutive spaces (thanks @mawkler in #202)

  • Flags multiple consecutive spaces (2+) in markdown prose
  • Provides auto-fix to collapse them to single space
  • Skips spaces in code, tables, HTML, front matter, and markdown syntax markers

• MD065 (blanks-around-horizontal-rules): New rule to enforce blank lines around horizontal rules

  • Ensures horizontal rules have blank lines before and after
  • Provides auto-fix to add missing blank lines
  • Skips Setext heading underlines

• MD066 (valid-footnote-definition): New rule to validate footnote definitions

  • Checks footnote definitions have proper syntax
  • Validates footnote labels are non-empty

• MD067 (no-empty-footnote-ref): New rule to flag empty footnote references

  • Detects footnote references with empty labels like [^]

• MD068 (no-space-in-footnote-ref): New rule to flag spaces in footnote references

  • Detects footnote references with spaces like [^ note]

Fixed

• WASM: Convert byte offsets to character offsets for JavaScript

  • Fixes crashes in Obsidian plugin when applying fixes to content with multi-byte UTF-8 characters (Norwegian letters, emoji, etc.)

• MD027 (no-multiple-space-blockquote): Skip list continuation indentation

  • No longer reports false positives for properly indented list continuations in blockquotes

• MD032 (blanks-around-lists): Detect thematic breaks as list terminators

  • Thematic breaks (horizontal rules) now correctly terminate lists

• MD036 (no-emphasis-as-heading): Skip emphasis inside HTML comments

  • No longer reports false positives for emphasis markers in HTML comments

• MD041 (first-line-heading): Skip badge images before headings

  • Badge images at the start of a file no longer prevent heading detection

• MD046 (code-block-style): Skip code blocks inside HTML comments

  • No longer reports false positives for code blocks in HTML comments

• MD051 (link-fragments): Recognize HTML and attribute anchors

  • Cross-file fragment validation now recognizes anchors from HTML id attributes

• MD057 (relative-links): Check for markdown source when .html link doesn't exist

  • Links to .html files now check for corresponding .md source files

Downloads

File	Platform	Checksum
rumdl-v0.0.196-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.196-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.196-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.196-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.196-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.196-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.196-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD063 (heading-capitalization): New rule for heading capitalization style
  • Enforces consistent capitalization in headings (Title Case, Sentence case, or lowercase)
  • Preserves all-caps acronyms (e.g., "API", "HTTP", "AWS") in title case mode
  • Configurable via MD063.style option

Fixed

• MD012 (no-multiple-blanks): Detect blank lines across skipped regions

  • Fixed detection of consecutive blank lines when frontmatter or code blocks are between them

• MD013 (line-length): Check individual line lengths in reflow default mode

  • Each line is now checked separately when reflow-mode is enabled

• MD014 (commands-show-output): Improve message accuracy

  • Better error messages and principled skip list for code blocks

• MD018/MD023: Skip GitHub issue refs and hashtags in heading detection

  • Lines like #123 or #hashtag no longer falsely detected as ATX headings

• MD033 (no-inline-html): Fix false positives

  • Skip angle brackets inside link reference definition titles
  • Remove incorrect indentation-based code block skip

• MD034 (no-bare-urls): Fix multiple edge cases

  • Detect www.example.com as bare URL
  • Handle link reference definitions with titles
  • Resolve false positives in code spans

• MD037 (no-space-in-emphasis): Skip template shortcode syntax

  • Template syntax like {* ... *} no longer triggers false positives

• MD042 (no-empty-links): Only flag empty URLs

  • Links with text but empty URL are flagged; empty text is no longer an error

• MD049 (emphasis-style): Report both opening and closing markers

  • Warnings now point to both * or _ markers in emphasis pairs

• MD056 (table-column-count): Escape pipes in inline code

  • Pipes inside inline code in tables no longer cause column count errors

• MD057 (relative-links): Multiple path handling improvements

  • Handle URL-encoded filenames (e.g., %20 for spaces)
  • Support framework aliases (e.g., @/ for src directory)
  • Handle angle-bracket paths (e.g., <path/to/file.md>)
  • Skip validation of absolute URL paths
  • Strip query parameters from URLs before file existence check

• MD063: Preserve all-caps acronyms in title case headings

  • Words like "API", "HTTP", "URL" maintain uppercase in title case mode

• CLI: Fix exit code and messaging

  • Return exit code 0 when all violations are fixed
  • Show accurate message when all violations are fixed

• Heading detection: Skip multiline link syntax

  • Lines inside multiline link definitions no longer falsely detected as headings

• Internal: Add is_valid field and iterator for CommonMark headings

  • Improved heading validation for rules that depend on heading structure

Changed

• MD059: Update alias to 'descriptive-link-text' (thanks @martimlobao in #201)
  • Rule can now be referenced as descriptive-link-text in configurations

Documentation

• MD050: Document intentional deviation from markdownlint
  • Clarified differences in emphasis style checking behavior

Downloads

File	Platform	Checksum
rumdl-v0.0.195-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.195-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.195-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.195-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.195-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.195-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.195-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• LSP: workspace/didChangeConfiguration support

  • LSP server now responds to configuration change notifications
  • Improved robustness and error handling in language server

• Config: Typestate pattern for configuration validation

  • Compile-time guarantees for configuration correctness
  • Invalid configurations are caught earlier in the pipeline

• CI: GitHub Marketplace branding for GitHub Action

  • Action now has proper branding for Marketplace visibility

Fixed

• MD057 (relative-links): Handle template variables and extensionless links

  • Template syntax (Handlebars, Mustache, Jinja2) like {{URL}} now recognized and skipped
  • Extensionless links like [Page](page) now resolve to page.md
  • All URI schemes (file://, smb://, macappstores://, etc.) properly excluded (fixes #192)

• Config: Remove misleading GFM/CommonMark warnings (fixes #195)

  • gfm and commonmark flavors now silently work as expected
  • Parser already supports GFM extensions (tables, task lists, strikethrough)

• Config: Discover markdownlint config via upward directory traversal

  • .markdownlint.yaml and similar files now found in parent directories
  • Matches behavior of other linting tools

• MD007 (ul-indent): Handle tab characters after blockquote markers

  • Tab indentation after > marker now calculated correctly
  • Fixes false positives for lists in blockquotes with tabs

• MD012 (no-multiple-blanks): Skip blank lines inside indented code blocks

  • Blank lines within indented code blocks no longer trigger warnings

• MD030 (list-marker-space): Analyze blockquoted list content correctly

  • Lists inside blockquotes now properly analyzed instead of skipped

• MD053 (link-image-reference-definitions): Recognize colons in reference labels

  • Reference definitions with colons in the label (e.g., [foo:bar]:) now detected

• lint_context: Check entire line for HTML comment marking

  • Lines with inline comments (<!-- comment --> content) now handled correctly
  • Content after --> on the same line is properly processed

• lint_context: Add missing HTML5 block elements

  • Added: audio, video, source, track, canvas, svg, iframe, embed, object, menu, summary, noscript, search, template

• lint_context: Handle nested blockquotes and JS comments in ESM blocks

  • Improved parsing for complex nested structures

• table_utils: Exclude list items from table row detection

  • List items containing pipes no longer confused with table rows

• lib: Handle mutex poisoning gracefully instead of panicking

  • Recovers from poisoned mutexes for better stability

Changed

• Internal: Replace Mutex<Option<Arc<T>>> with OnceLock

  • Cleaner initialization pattern for shared state

• Internal: Replace tuple return with FixResult struct

  • More descriptive return type for fix operations

Documentation

• README: Clarify markdownlint config upward traversal behavior

Downloads

File	Platform	Checksum
rumdl-v0.0.194-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.194-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.194-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.194-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.194-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.194-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.194-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD032 (blanks-around-lists): Complete fix for false positives (fixes #188, #190)

  • Pipes in code spans (e.g., `foo || bar`) no longer trigger false table detection
  • Lazy continuation lines at indent=0 handled per CommonMark spec
  • Removed ad-hoc URL/link exclusion hacks in favor of proper is_table_line() detection
  • Fixed regression in v0.0.192 that affected list boundary detection

• MD057 (relative-links): Resolve links per-file instead of caching base path

  • Relative link resolution now correctly uses each file's directory
  • Prevents cross-file path resolution errors in multi-file projects

Changed

• Internal: Replace naive contains('|') checks with is_table_line()
  • Structural separator detection now properly validates table structure
  • Requires pipes at start/end with ≥2 total, or separator line pattern

Downloads

File	Platform	Checksum
rumdl-v0.0.193-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.193-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.193-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.193-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.193-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.193-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.193-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• Config: cache option to disable caching via config file (closes #153)

  • Add cache = false to [global] section to persistently disable caching
  • Eliminates need to pass --no-cache flag on every invocation
  • Works in both .rumdl.toml and pyproject.toml

• MD052 (reference-links-images): User-configurable ignore option

  • Add patterns to skip specific reference links from validation
  • Useful for links handled by external tools or preprocessors

• CI: Major version tag (v0) for GitHub Action

  • Users can now reference the action as rvben/rumdl@v0 for automatic minor updates

Fixed

• Inline config: Cross-file rules now respect disable comments (fixes #189)

  • MD051 and MD057 now honor <!-- rumdl-disable --> and <!-- rumdl-disable-next-line --> comments
  • Previously these rules ran in a separate phase that bypassed inline config filtering

• Config: Directory exclude patterns now match files within (fixes #186)

  • Patterns like docs/ now correctly exclude all files in that directory
  • Glob patterns are automatically expanded to match contained files

• MD032 (blanks-around-lists): No longer triggers on pipes in inline code (fixes #188)

  • Tables inside inline code blocks no longer confuse list boundary detection

• MD005/MD037/MD041: Resolve false positives

  • MD041: Setext headers with colons no longer cause issues
  • MD037: List items containing asterisks handled correctly
  • MD005: Sublist parsing improved for complex nested structures

• Text reflow: Use proper table detection

  • Replaced simplistic pipe check with robust table structure detection
  • Prevents incorrect reflow of table content

Changed

• Internal: Replace RUMDL_FILE_PATH env var with source_file field
  • Cleaner API for accessing the current file path in rule implementations
  • No user-facing changes

Downloads

File	Platform	Checksum
rumdl-v0.0.192-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.192-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.192-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.192-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.192-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.192-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.192-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• CLI: Handle broken pipe gracefully when piping to head (fixes #184)

  • Output to closed pipes (e.g., rumdl check . | head) no longer causes error messages
  • SIGPIPE is now handled properly on Unix systems

• Config: Resolve exclude patterns relative to config file location (fixes #185)

  • Exclude patterns like docs/* now resolve relative to the project root (config file directory)
  • Previously patterns resolved relative to the current working directory, causing them to fail when running from a different directory with --config
  • This matches the behavior of Biome, Black, and markdownlint-cli2
  • Note: Users running from the project root (the common case) are unaffected

• Docs: Correct build status badge to track release workflow

Downloads

File	Platform	Checksum
rumdl-v0.0.191-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.191-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.191-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.191-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.191-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.191-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.191-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• GitHub Action: New rumdl-action for CI integration

  • Supports version, path, and config inputs
  • Enables easy integration of rumdl into GitHub workflows

• CLI: Add --rules as alias for --enable

  • More intuitive option name for specifying which rules to run
  • Example: rumdl check --rules MD001,MD003 file.md

Fixed

• LSP: Detect client diagnostic capabilities to avoid duplicate diagnostics (fixes #182)

  • LSP server now checks if the client supports textDocument/publishDiagnostics
  • Prevents duplicate diagnostics when client pulls diagnostics instead of receiving pushes

• MD005 (list-indent): Group sublists by parent content column

  • Correctly handles ordered lists where marker widths vary (e.g., "1. " vs "10. ")
  • Sublists under parents with different content columns are now grouped separately
  • Prevents false positives when indent differences are caused by marker width variation

• MD037/MD038: Handle multi-byte UTF-8 characters in emphasis detection

  • Emphasis detection now correctly handles characters like CJK and emoji
  • Prevents false positives and incorrect column reporting for non-ASCII content

• MD057 (existing-relative-links): Handle absolute paths as workspace-relative

  • Absolute paths in markdown (e.g., /CONTRIBUTING.md) are now resolved relative to workspace root
  • Fixes false positives for links that reference files from the repository root

• MD057 (existing-relative-links): Add filesystem fallback for case-sensitivity issues

  • Improves link validation on case-insensitive filesystems
  • Reduces false positives on macOS and Windows

• CLI: Canonicalize config path before changing working directory

  • Config files specified with relative paths now work correctly
  • Fixes issue where config was not found after directory change

Downloads

File	Platform	Checksum
rumdl-v0.0.190-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.190-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.190-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.190-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.190-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.190-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.190-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD061 (link-destination-exists): Default case_sensitive to true when loading from TOML

  • Configuration parsing now correctly defaults to case-sensitive path checking
  • Aligns TOML config behavior with programmatic defaults

• MD022 (blanks-around-headings): Treat HTML comments and frontmatter as transparent

  • HTML comments between content and headings no longer trigger blank line warnings
  • Frontmatter is now invisible to blank line checking around headings

• MD033 (no-inline-html): Skip code span content in multi-line span detection

  • HTML tags inside multi-line code spans are no longer flagged
  • Prevents false positives for code examples containing HTML

• MD032 (blanks-around-lists): Handle multi-line code spans in list detection

  • Code spans spanning multiple lines no longer confuse list boundary detection
  • Fixes false positives for lists near complex code span usage

• MD044 (proper-names): Skip HTML comments by default

  • Proper name checking now excludes HTML comment content
  • Reduces noise from commented-out content

• MD029 (ol-prefix): Use pulldown-cmark for list membership detection

  • More accurate detection of which items belong to which ordered list
  • Handles edge cases with code blocks and other interrupting elements

Changed

• MD057 (table-pipe-style): Remove unused skip_media_files config option
  • Simplifies configuration by removing non-functional option

Downloads

File	Platform	Checksum
rumdl-v0.0.189-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.189-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.189-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.189-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.189-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.189-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.189-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD062 (link-destination-whitespace): New rule for detecting whitespace in link destinations

  • Flags links with leading/trailing whitespace in destinations like [text]( url )
  • Supports auto-fix to trim the whitespace
  • Works in both CLI and LSP environments

• Cross-file analysis infrastructure: Foundation for multi-file linting

  • New WorkspaceIndex for indexing headings and anchors across files
  • Background index worker for LSP with debouncing and progress reporting
  • Reverse dependency tracking for efficient re-linting when files change
  • MD051 now validates cross-file link fragments against the workspace index

Fixed

• MD051 (link-fragments): Fix false positives for cross-file links without fragments
  • Links like [text](file.md) no longer incorrectly flagged for empty fragments
  • Only validates fragments when explicitly provided (e.g., [text](file.md#anchor))

Downloads

File	Platform	Checksum
rumdl-v0.0.188-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.188-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.188-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.188-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.188-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.188-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.188-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• WASM: Implement Linter class API with configuration support
  • New Linter class provides object-oriented API for WebAssembly builds
  • Supports configuration options for customizing lint behavior
  • Enables more flexible integration in JavaScript/TypeScript projects

Fixed

• MD053 (link-image-reference-definitions): Fix false positives for adjacent footnotes (fixes #177)

  • Footnote references like [^1][^2] no longer trigger "unused reference" warnings
  • Uses pulldown-cmark for proper footnote parsing instead of regex

• MD034 (no-bare-urls): Use pulldown-cmark for proper link parsing

  • Bare URL detection now correctly identifies URLs already inside links
  • Prevents false positives for URLs that are properly formatted

• MD010 (no-hard-tabs): Skip tabs in fenced code blocks

  • Tabs inside fenced code blocks are no longer flagged
  • Preserves intentional tab characters in code examples

• MD052 (reference-links-images): Disable shortcut reference checking by default

  • Shortcut references like [text] without a following [] no longer trigger warnings
  • Reduces false positives in documents using shortcut reference style

• MD025/MD023: Fix false positives after single-line code blocks (fixes #175)

  • Comments like # text inside code blocks after single-line code blocks no longer flagged
  • Code block parsing now correctly handles edge cases

• MD013/MD039: Fix reflow oscillation causing unstable output (fixes #170)

  • Running rumdl fmt multiple times now produces stable output
  • Link formatting no longer conflicts with line length reflow

Changed

• Tests: Align test expectations with CommonMark spec and markdownlint reference
  • Test suite updated to match authoritative behavior
  • Ensures compatibility with CommonMark specification

Downloads

File	Platform	Checksum
rumdl-v0.0.187-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.187-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.187-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.187-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.187-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.187-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.187-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• WebAssembly support: Build and publish rumdl as npm package
  • Use rumdl in browsers and Node.js via @anthropic/rumdl npm package
  • Includes lint() function for linting markdown content
  • Automated npm publishing via GitHub Actions

Fixed

• MD058 (blanks-around-tables): Fix duplicating table content during auto-fix

  • Auto-fix no longer duplicates table content when adding blank lines
  • Correctly handles tables at various positions in the document

• MD013 (line-length): Preserve nested linked images during text reflow

  • Markdown images inside links like [![alt](img.png)](url) now preserved during line wrapping
  • Previously, the reflow logic could break such nested constructs

Changed

• Docs: Document rumdl-fmt pre-commit hook with version check
  • Added documentation for the rumdl-fmt hook in pre-commit configuration
  • Includes version compatibility information

Downloads

File	Platform	Checksum
rumdl-v0.0.186-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.186-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.186-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.186-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.186-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.186-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.186-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• Inline config: Support rule aliases in inline configuration comments
  • Use human-readable aliases like line-length instead of MD013 in inline comments
  • Example: <!-- rumdl-disable line-length --> now works alongside <!-- rumdl-disable MD013 -->
  • All rules now document their aliases in the rule documentation

Fixed

• MD061 (forbidden-terms): Register rule in mod.rs
  • MD061 was added in v0.0.184 but was never registered, causing "Unknown rule" errors
  • The rule now works correctly for detecting forbidden terms like TODO, FIXME, etc.

Downloads

File	Platform	Checksum
rumdl-v0.0.185-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.185-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.185-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.185-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.185-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.185-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.185-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD061 (forbidden-terms): New rule to flag forbidden terms in documents
  • Configurable list of forbidden terms with case-sensitivity options
  • Useful for style guides, compliance, and consistency enforcement

Fixed

• Code blocks: Respect CommonMark fence indentation limit (0-3 spaces)

  • CommonMark spec limits fenced code block indentation to 0-3 spaces relative to container
  • Document-level fences must have at most 3 spaces of indentation
  • Fences inside list items are correctly recognized (indentation is relative to list content)
  • Prevents false negatives when checking content inside deeply nested structures

• LSP: Use whole-table fixes for table rules (MD055, MD056, MD058, MD060)

  • Table rule fixes now replace the entire table instead of individual cells
  • Prevents fix corruption when multiple cells need adjustment
  • Improves reliability of auto-fix in IDEs

Downloads

File	Platform	Checksum
rumdl-v0.0.184-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.184-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.184-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.184-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.184-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.184-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.184-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD056 (table-column-count): Respect MkDocs flavor for pipes in inline code (fixes #165)

  • In MkDocs/Python-Markdown flavor, pipes inside backticks are NOT cell delimiters
  • Tables with inline code containing pipes (e.g., `x | y`) no longer trigger false positives
  • GFM flavor behavior unchanged (pipes in code ARE delimiters per spec)

• MD060 (table-format): Respect MkDocs flavor for pipes in inline code

  • Consistent with MD056 fix for MkDocs flavor support
  • Table formatting now correctly handles inline code with pipes in MkDocs mode

• Schema: Use kebab-case for GlobalConfig properties

  • JSON schema now uses kebab-case (e.g., line-length) matching config file conventions
  • Improves IDE auto-completion and validation for configuration files

Changed

• Refactor: Consolidate table row parsing into TableUtils

  • Unified table parsing logic into shared utility module
  • Reduces code duplication between MD056 and MD060

• Refactor: Decompose MD013 into module structure

  • Split large md013_line_length.rs into separate files:
    • mod.rs: Main rule implementation
    • helpers.rs: Helper functions
    • tests.rs: Unit tests
  • Improves code organization and maintainability

Downloads

File	Platform	Checksum
rumdl-v0.0.183-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.183-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.183-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.183-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.183-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.183-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.183-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• cache clean command

  • Added rumdl clean command to clear the cache directory
  • Useful for forcing re-linting of all files

• MD013 (line-length): Visual width mode for CJK and emoji

  • Added visual-width option that counts CJK characters as double-width
  • Properly handles emoji and other wide characters for accurate line length checking
  • Useful for East Asian language documentation

• MD013 (line-length): Custom abbreviation support

  • Added abbreviations config option for defining custom abbreviations
  • Custom abbreviations are respected during sentence-per-line reflow
  • Prevents unwanted line breaks after user-defined abbreviations

• Configuration file discovery: .config/rumdl.toml support

  • Added support for .config/rumdl.toml as a valid configuration location
  • Follows XDG Base Directory-style pattern for project-level config
  • Discovery order: .rumdl.toml → .config/rumdl.toml → pyproject.toml

• MD022 docs: Per-level configuration documentation

  • Added documentation for per-level lines-above and lines-below arrays
  • Shows how to specify different spacing requirements for each heading level (h1-h6)

Fixed

• MD042 (no-empty-links): Wiki-style links no longer flagged as empty (fixes discussion #153)

  • Wiki-style links like [[Page Name]], [[Folder/Page]], and [[Page|Display Text]] are now recognized
  • Prevents false positives for Obsidian/Notion-style wiki link syntax
  • Block references like [[#^block-id]] are also handled correctly

• MD056 (table-column-count): Handle escaped pipes correctly in GFM tables (fixes #163)

  • GFM table parsing now correctly handles backslash-escaped pipes (\|)
  • Inline code spans do NOT protect pipes from being cell delimiters (per GFM spec)
  • Only \| is treated as literal pipe content

• MD060 (table-format): Accept tables that are already aligned (fixes #164)

  • Tables with consistent column widths across all rows are now accepted as aligned
  • Short separator rows (e.g., :-- instead of :---) no longer trigger reformatting
  • Reduces false positives for manually aligned tables

Changed

• Documentation: Corrected timestamps in CHANGELOG for versions 0.0.172-0.0.178

Downloads

File	Platform	Checksum
rumdl-v0.0.182-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.182-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.182-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.182-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.182-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.182-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.182-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• cache-dir configuration option
  • Added support for cache-dir in .rumdl.toml and pyproject.toml config files
  • Precedence: CLI --cache-dir → RUMDL_CACHE_DIR env var → config file → default
  • Follows Ruff's configuration pattern for cache directory management
• Termux installation support
  • Added Termux User Repository install method to README (thanks @ha1ix in #157)

Changed

• BREAKING: Cache directory renamed from .rumdl-cache to .rumdl_cache
  • Aligns with Ruff's naming convention (.ruff_cache)
  • Follows Rust ecosystem preference for underscores over hyphens
  • Migration: Old .rumdl-cache directories can be safely deleted

Fixed

• LSP: Exclude Unfixable rules from formatting and Fix All (fixes #158)
  • Filter warnings from Unfixable rules (like MD033) before applying fixes during LSP formatting
  • Prevents unintended destructive changes (e.g., HTML deletion) during document formatting
  • Unfixable rules still available through Quick Fix actions for user choice
  • Fix All action now correctly excludes Unfixable rules
• Cache directory now created at project root, not CWD (fixes #159)
  • Cache directory is now anchored to the project root (determined by .git location)
  • Prevents multiple cache directories when running from subdirectories
  • Works consistently whether invoked from project root or any subdirectory
  • Behavior:
    • With .git: Cache at .git parent directory (true project root)
    • Without .git: Cache at config file location (fallback)
  • Follows Ruff's fix (PR #7962) for consistent cache placement

Downloads

File	Platform	Checksum
rumdl-v0.0.181-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.181-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.181-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.181-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.181-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.181-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.181-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD022 (blanks-around-headings): Per-level unlimited blank handling
  • Added per-level configuration to allow unlimited blank lines around specific heading levels
  • Enables fine-grained control over blank line requirements for different heading levels
  • Supports both global and per-level unlimited blank line settings

Fixed

• Range utilities: Handle UTF-8 character boundaries safely (fixes #154)

  • Fixed panic when processing files with multi-byte UTF-8 characters (CJK, emoji)
  • String slicing operations now safely handle byte indices that fall in the middle of multi-byte characters
  • Added comprehensive test suite covering Korean, Chinese, Japanese characters, emoji, and edge cases
  • All string slicing operations now occur at valid UTF-8 character boundaries

• MD041 (first-line-heading): HTML comments are now correctly skipped (fixes #155)

  • HTML comments before headings are now treated as non-visible content and ignored
  • Aligns with documentation and markdownlint behavior
  • Multi-line HTML comments are properly handled using parser metadata
  • Fixed handling of deeply nested HTML headings

Downloads

File	Platform	Checksum
rumdl-v0.0.180-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.180-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.180-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.180-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.180-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.180-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.180-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD041 (first-line-heading): Fixed multiline HTML detection for headings

  • Replace manual HTML parsing with centralized ctx.html_tags() parser
  • Correctly handles nested HTML elements with multiline attributes
  • Fixes Issue #152: No longer incorrectly flags headings when preceded by multiline HTML

• MD037 (no-space-in-emphasis): Improved warning message clarity

  • Truncate long emphasis text in warning messages to prevent display issues
  • Long emphasis spans are now shown with ellipsis for better readability

Performance

• MD005 (list-indent): Eliminated O(n²) complexity by pre-computing parent relationships

  • Pre-compute parent list item relationships during initial parsing
  • Reduces algorithmic complexity from O(n²) to O(n) for deeply nested lists
  • Improves performance for files with complex list structures

• Optimized link/image regex patterns to prevent catastrophic backtracking

  • Added atomic grouping and possessive quantifiers to regex patterns in lint_context.rs
  • Prevents regex engine from exponential backtracking on pathological inputs
  • Improves parsing speed for files with many links and images

Changed

• MD033 (no-inline-html): Refactored to use centralized HTML parser
  • Removed 109 lines of broken find_multiline_html_tags() function that detected 0 multiline HTML tags
  • Replaced two-pass approach (single-line regex + multiline detection) with single-pass using ctx.html_tags()
  • Now correctly detects all multiline HTML tags (previously missed 100% of them)
  • Follows pattern from MD041 refactoring for consistency
  • Preserves all existing filters (code blocks, kramdown, comments, etc.)

Added

• Comprehensive MD005 test coverage
  • Added 21 new edge case tests for list indentation detection
  • Updated unicode test to verify dynamic parent relationship detection
  • Ensures robustness for nested and complex list structures

Downloads

File	Platform	Checksum
rumdl-v0.0.179-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.179-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.179-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.179-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.179-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.179-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.179-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Performance

• Critical: Eliminated O(n²) bottleneck in list block parsing (Issue #148)
  • Replaced nested loop with forward-scanning O(n) algorithm using state tracking
  • Performance improvement: 900-line files with nested lists now parse in ~20ms (previously 50+ seconds)
  • User-reported case: 890-line file improved from 50.2s to ~0.2s (250x speedup)
  • User-reported case: 1780-line file improved from 347s to ~0.4s (867x speedup)
  • Algorithm now scales linearly O(n) instead of quadratically O(n²)
  • Uses two tracking variables to detect list-breaking content and validate continuation indentation
  • Extracted reset_tracking_state() helper to eliminate code duplication
  • Replaced magic number 2 with UNORDERED_LIST_MIN_CONTINUATION_INDENT constant

Changed

• Code cleanup: Removed unused O(n²) trap methods
  • Removed links_on_line() and images_on_line() methods from LintContext
  • These methods were never used but could cause performance issues if called in loops

Added

• Comprehensive regression tests for list block parsing
  • 27 new tests covering edge cases: consecutive items, list-breaking content, indentation rules
  • Performance tests verify O(n) scaling for 1000+ item lists
  • Tests reproduce exact Issue #148 pattern (nested lists with brackets)

Downloads

File	Platform	Checksum
rumdl-v0.0.178-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.178-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.178-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.178-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.178-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.178-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.178-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD003 (heading-style): Fixed non-deterministic test failure

  • Eliminated flaky behavior caused by HashMap iteration order when multiple heading styles had equal counts
  • Added deterministic tiebreaker that prefers ATX style over Setext styles
  • Ensures consistent style detection across all test runs

• MD044 (proper-names): Added international character support

  • Added tilde characters (ã, õ) and Nordic å to ASCII normalization
  • Enables proper name matching for international cities like São Paulo, Coimbra, and Århus

• MD013 (line-length): Fixed infinite hang in sentence-per-line reflow mode

  • Fixed abbreviation detection causing hang on words ending in letter sequences
  • Corrected logic to properly detect abbreviations vs. sentence endings
  • Issue #150: Resolves infinite loop that occurred with certain text patterns

• Table style detection improvements

  • MD055/MD056/MD058: Now analyze all table rows to detect style, not just first row
  • Prevents false positives when first row has different separator style than rest of table

• Code quality fixes

  • Resolved Issues #151 and #152 with comprehensive test coverage
  • Eliminated code duplication in MD005, MD042, and other rules
  • Extracted shared helper methods to reduce maintenance burden

Added

• MD013: Comprehensive abbreviation detection tests

  • 42 test cases covering sentence-per-line reflow edge cases
  • Validates correct behavior for abbreviations, acronyms, and punctuation patterns

• Text reflow test organization

  • Separated 42 integration tests into dedicated test file (text_reflow_test.rs)
  • Follows established codebase pattern for test organization
  • Improves maintainability while keeping 1 private helper test inline

Changed

• MD029 (ordered-list-prefix): Improved warning messages

  • Messages now include contextual style information
  • Shows both configured style and detected document style for clarity
  • Examples: "configured style 'one'" vs "document style 'ordered'"

• MD029 rule name standardization

  • Removed deprecated MD029-style suffix variant
  • Unified to single consistent "MD029" identifier across codebase

Performance

• Memory optimization in MD005 and MD042
  • Reduced memory allocations in list consistency and link reference checks
  • More efficient data structure usage

Downloads

File	Platform	Checksum
rumdl-v0.0.177-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.177-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.177-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.177-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.177-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.177-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.177-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• Git-style intelligent configuration merging
  • User and project configs can now intelligently combine instead of simply overriding
  • disable array uses union semantics - user can add to project disables
  • enable array uses replace semantics - project can enforce specific rules
  • When a rule appears in both enable and disable, enable wins (project can override user)
  • Configuration hierarchy is now explicit and follows Git's pattern:
    • Default (0) < UserConfig (1) < PyprojectToml (2) < ProjectConfig (3) < CLI (4)
  • Renamed config sources for clarity:
    • ConfigSource::RumdlToml → UserConfig (global user config)
    • ConfigSource::RumdlToml → ProjectConfig (project-level config files)
    • Removed Markdownlint source (now uses ProjectConfig)
  • New API methods:
    • SourcedValue::merge_union() - additive merging for disable arrays
    • SourcedValue::merge_override() - replacement merging for enable arrays
  • Example use cases:
    • User disables MD013 globally → Project enables MD013 → MD013 is enabled ✓
    • Project disables MD001, MD003 → User disables MD013 → All three are disabled ✓
  • 17 comprehensive tests covering merge semantics, precedence, and conflict resolution
  • Matches configuration pattern used by git, eslint, prettier, and other modern tools

Performance

• Major memory optimizations eliminating string allocations

  • Converted LineInfo to use byte ranges instead of owned strings (50-80% memory reduction)
  • Eliminates N string allocations where N = number of lines in document
  • Added zero-copy content(&self, source: &str) -> &str method for on-demand access
  • Converted LineIndex to borrow &'a str instead of cloning (eliminates one full document copy per lint operation)
  • Converted ParsedLink/ParsedImage to use Cow<'a, str> (60-80% reduction in heap allocations for link/image parsing)
  • Zero-cost when borrowing, minimal overhead when owning - most data borrowed directly from source

• Eliminated O(n²) complexity in multiple rules

  • Fixed quadratic bottlenecks in MD027 (Multiple spaces after blockquote symbol)
  • Fixed quadratic bottlenecks in MD020 (No space inside hashes on closed atx style heading)
  • Fixed quadratic bottlenecks in MD046 (Code block style)
  • All three rules now use pre-computed context data with O(1) lookups

• Optimized CLI commands

  • rumdl config now executes in ~18ms (eliminated duplicate rule instantiation)
  • Removed duplicate instantiation of ~50 rule objects between main.rs and formatter.rs
  • Cleaner architecture with single source of truth for rule instances

Fixed

• Config loading: User config now always loaded as base layer (#131)

  • Fixed LSP server ignoring user config when finding project-level config files
  • User configuration is now always loaded first (unless --no-config is used)
  • Project configs merge on top of user config, CLI flags have highest priority
  • Configuration hierarchy now consistent between CLI and LSP:
    1. User/global config (~/.config/rumdl/rumdl.toml) - base layer
    2. Project config (discovered or explicit) - overrides user config
    3. CLI flags - highest priority
  • Matches pattern used by git, eslint, prettier, and other tools
  • Added regression test verifying user config preserved with explicit project config

• MD035: Frontmatter delimiter false positives (#40)

  • Fixed incorrect flagging of YAML/TOML frontmatter delimiters (---/+++) as horizontal rules
  • Rule now correctly skips frontmatter in three places:
    • most_prevalent_hr_style() - don't count frontmatter HRs for prevalence
    • check() - don't flag frontmatter delimiters as violations
    • fix() - don't replace frontmatter delimiters when fixing
  • Uses pre-computed LineInfo.in_front_matter field for efficient detection

Changed

• Architecture: Consistent use of pre-computed context data

  • MD035 now uses pre-computed LineInfo.in_front_matter instead of function calls
  • All rules now consistently use ctx.line_index for line-based operations
  • Eliminates redundant function calls and O(n) scans
  • More efficient with O(1) field access patterns

• Test infrastructure improvements

  • Implemented dynamic fixture downloading for performance tests
  • Test downloads now happen on-demand instead of being checked into repository
  • Better handling of large test files for performance benchmarking

• Test quality improvements

  • Corrected ESM block test assertions to match actual MDX behavior
  • ESM blocks only exist at TOP of MDX files and end at first non-ESM line
  • Tests now assert correct behavior rather than documenting implementation quirks
  • Fixed MD033 test assertions to properly validate HTML inline rules

Breaking Changes

For library users only (CLI users unaffected):

• LineInfo.content field is no longer public - use new content(source: &str) method instead
• Since LineInfo was primarily internal API, impact should be minimal

Downloads

File	Platform	Checksum
rumdl-v0.0.176-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.176-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.176-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.176-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.176-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.176-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.176-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• Universal wiki-link and Obsidian block reference support

  • Added recognition of [[wiki-links]] across all rules
  • Added support for Obsidian block references [[note#^block-id]]
  • Prevents false positives in link/heading detection rules
  • Works with all extended markdown flavors that support wiki-links

• Type-safe configuration wrappers

  • Added HeadingLevel type with validation (1-6 range)
  • Added type-safe wrappers for MD007, MD009, MD010 configuration
  • Added type-safe configuration for MD013 and MD030
  • Added type-safe configuration for MD022, MD012, MD060
  • Compile-time validation prevents invalid configuration values
  • Backward compatible with snake_case field names via serde aliases

• Memory profiling for non-Linux platforms

  • Added cross-platform memory profiling support
  • Uses physical memory instead of virtual memory for benchmarking
  • Enables performance analysis on macOS and Windows

Fixed

• MD041: mdBook preprocessor directive false positives

  • MD041 now skips files containing only mdBook preprocessor directives (e.g., {{#include file.md}})
  • These composition/routing files are not standalone content and don't require headings
  • Eliminates false positives on mdBook include-only files
  • Supports all mdBook directives: {{#include}}, {{#playground}}, {{#rustdoc_include}}, etc.
  • Handles files with directives mixed with HTML comments
  • Added comprehensive test coverage for mdBook directive patterns

• MD042: Inline code in link text false positives

  • Fixed incorrect flagging of code spans within link text
  • MD042 now correctly handles patterns like [code with \backticks`](url)`
  • Prevents false positives when links contain inline code
  • Added regression test covering this case

• Config import: markdownlint option mapping (#137)

  • rumdl import now correctly maps markdownlint-specific option names to rumdl equivalents
  • MD013: Maps stern → strict, warns about incompatible options (code_block_line_length, heading_line_length)
  • MD054: Warns about incompatible style/styles options (rumdl uses individual boolean flags)
  • Prevents "Unknown option" warnings when importing markdownlint configs
  • Added helpful warnings explaining config model differences

• MD011: Footnote reference false positives (#147)

  • Fixed incorrect flagging of valid markdown: [link](url)[^footnote]
  • MD011 now skips footnote references (starting with ^)
  • Already had support for reference links, now extended to footnotes
  • Added regression test covering this case

• MD013: Front matter line length (#146)

  • MD013 now correctly skips YAML/TOML front matter blocks
  • Prevents false positives on long lines in document metadata
  • Works with both --- (YAML) and +++ (TOML) front matter delimiters
  • Added regression test covering this case

• Config system: kebab-case support

  • MD041: Converted to serde-based config with kebab-case support
  • Added backward compatibility aliases for snake_case field names
  • Now properly supports both front-matter-title and front_matter_title
  • Removed undocumented config options from MD032 and MD038

• MD004: Simplified configuration

  • Refactored to use derives instead of manual implementation
  • Cleaner code while maintaining full functionality

• Test infrastructure improvements

  • Migrated from deprecated Command::cargo_bin to cargo_bin_cmd! macro
  • Fixed Homebrew installation docs (removed unnecessary brew tap)

Changed

• Consistency checking: Prevalence-based style detection

  • Converted MD003, MD004, MD046, MD048, MD049, MD050, MD055 from "first-found" to "prevalence-based" logic
  • Rules now count ALL occurrences and enforce the most commonly used style
  • Tie-breakers prefer industry standards (GitHub, CommonMark recommendations)
  • More accurate representation of document's actual style intent
  • Better user experience: rules adapt to what you mostly use, not just the first instance
  • Affected rules:
    • MD003 (heading-style): ATX vs Setext vs Closed ATX
    • MD004 (ul-style): dash, asterisk, plus, or consistent
    • MD046 (code-block-style): fenced vs indented
    • MD048 (code-fence-style): backticks vs tildes
    • MD049 (emphasis-style): asterisk vs underscore
    • MD050 (strong-style): asterisk vs underscore
    • MD055 (table-pipe-style): leading/trailing pipe consistency
  • Updated documentation to reflect prevalence-based behavior

• Dependencies

  • Upgraded schemars from 0.8 to 1.1
  • Updated all dependencies to latest compatible versions
  • Updated dependencies to latest patch versions

Downloads

File	Platform	Checksum
rumdl-v0.0.175-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.175-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.175-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.175-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.175-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.175-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.175-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD046: False positives with multi-paragraph footnotes (#142)

  • Fixed incorrect flagging of indented continuation paragraphs in footnote definitions
  • Added comprehensive footnote detection following CommonMark footnote extension spec
  • Implements proper block continuation context tracking for footnotes
  • Prevents confusion between actual indented code blocks and footnote continuations
  • Example that now works correctly:

    [^1]: First paragraph of footnote.
    
        Second paragraph (indented, but not a code block).
    

  • Added 11 specification-based tests ensuring robust footnote handling

• CLI: Differentiate --quiet and --silent flags (#141)

  • --quiet: Shows diagnostics but suppresses progress/summary (matches Ruff behavior)
  • --silent: Suppresses all output including diagnostics (exit code still reflects violations)
  • Previously both flags behaved identically, hiding all output
  • Updated help text to clarify the distinction

• LSP: Server now respects --config argument (#140)

  • Added proper support for --config flag in rumdl server command
  • Config file path validation with clear error messages for missing files
  • Config path properly passed through entire LSP initialization stack
  • Enables custom configuration files for LSP/editor integrations

Downloads

File	Platform	Checksum
rumdl-v0.0.174-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.174-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.174-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.174-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.174-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.174-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.174-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD060: Table format rule with Prettier-style auto-compact

  • New rule enforcing consistent table column alignment (aligned/compact/tight styles)
  • Auto-compact threshold: Tables exceeding max-width automatically use compact formatting
  • Configurable via max-width setting (0 = inherit from MD013's line-length)
  • Generates informative warnings showing actual width vs threshold
  • Disabled by default (opt-in feature)
  • Handles edge cases: zero-width characters, escaped pipes, HTML comments
  • Respects column alignments (left/center/right) in aligned mode

• MD043: Wildcard pattern support for heading structures

  • New wildcard patterns for flexible heading structure validation
  • Allows * placeholders in heading text for dynamic content
  • Expert-level edge case handling for complex heading hierarchies

• MD044: HTML elements configuration option

  • New html-elements configuration to customize proper name handling
  • Allows project-specific proper name enforcement

• RUMDL_CACHE_DIR environment variable

  • Override default cache directory location via environment variable
  • Useful for CI/CD pipelines and custom cache management

Fixed

• Definition list support in reflow mode (#136)

  • Definition lists (Extended Markdown syntax) are now correctly preserved during text reflow
  • Prevents incorrect joining of terms with definitions (e.g., Term\n: Definition no longer becomes Term : Definition)
  • Supports PHP Markdown Extra, Kramdown, Pandoc, Hugo, and other extended Markdown flavors
  • Works with all reflow modes including sentence-per-line

• MD054: Error message alignment

  • Corrected error messages to match implementation behavior
  • Documentation now accurately reflects link/image style validation

• MD041: Front matter title config schema

  • Added missing front_matter_title options to configuration schema
  • Fixes config validation errors when using front matter title feature

• LSP: pyproject.toml validation

  • LSP now verifies [tool.rumdl] section exists before using pyproject.toml
  • Prevents errors when pyproject.toml exists but doesn't contain rumdl config

• CLI: Rule registration

  • Fixed MD057, MD059, MD060 rules not being registered in CLI
  • All rules now properly available for use

Changed

• Documentation: TOML format migration
  • Converted all configuration examples from YAML to TOML
  • Reflects modern configuration best practices
  • Improved clarity for MD013 reflow requirement in README

Downloads

File	Platform	Checksum
rumdl-v0.0.173-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.173-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.173-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.173-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.173-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.173-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.173-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD059: Link text style rule achieving 100% markdownlint compatibility

  • New rule for enforcing consistent link text formatting
  • Matches markdownlint column reporting behavior
  • Completes full parity with markdownlint rule set

• pulldown-cmark BrokenLink callback integration

  • Enhanced link reference validation using parser callback
  • Better detection of undefined reference-style links
  • Improved accuracy for MD052 and related rules

Fixed

• Critical: UTF-8 character boundary panic in ordered list detection

  • Fixed crash when processing markdown with multi-byte UTF-8 characters (Japanese, Chinese, Korean, etc.)
  • Root cause: Character index was incorrectly used as byte index for string slicing
  • Now converts character positions to byte positions using char_indices().nth()
  • Discovered during validation on javascript-algorithms repository (193k ⭐)
  • Affected any non-English documentation with multi-byte UTF-8 near numbered lists

• pulldown-cmark escaped bracket workaround

  • Workaround for pulldown-cmark bug where \[ and \! are incorrectly parsed as links/images
  • Violates CommonMark spec Example 14 for backslash escapes
  • Filters 90% of false positives with byte-level escape pattern detection
  • Correctly handles: \[escaped\], \![not an image](url)
  • Known limitation: \[text][ref] reference-style links still produce 1 false positive
  • Bug report filed for upstream fix

• MD042: False positives on autolinks

  • Fixed empty link detection incorrectly flagging autolinks like <https://example.com>
  • Autolinks are now correctly excluded from empty link checks

• MD033: HTML tags inside HTML comments

  • Fixed false positives when HTML tags appear inside HTML comments
  • Centralized HTML comment detection for consistent behavior across rules
  • HTML comments now properly ignored: <!-- <div>not flagged</div> -->

• MD051: GitHub ASCII normalization

  • Implemented proper GitHub anchor generation with ASCII normalization
  • Handles edge cases like backtick-wrapped angle brackets: `<FILE>` → #file
  • Verified against actual GitHub.com rendering behavior

• MD052: Complete Jinja template support

  • Added Jinja template range checks to regex-based shortcut reference detection
  • Fixes false positives on [reference] patterns in Jinja templates
  • Completes Jinja support across all link-related rules (MD039, MD042, MD051, MD052)

• MD039/MD042/MD051: Jinja template checks

  • Added Jinja template range checks to prevent false positives
  • All rules using ctx.links/ctx.images now skip Jinja template markers
  • Validated on real-world Jinja templates (pyo3/.towncrier.template.md)

• Link/image text extraction: Whitespace preservation

  • Fixed loss of leading/trailing whitespace in link text and image alt text
  • pulldown-cmark strips newlines from Text events, causing whitespace loss
  • Now extracts directly from source bytes between brackets for perfect fidelity
  • Verified: [\nNewline\n](url) → text correctly preserved with newlines

Changed

• ⚠️ BREAKING: Removed MD002 (first-heading-h1) and MD006 (ul-start-left) rules

  • Removed for 100% markdownlint compatibility
  • markdownlint deprecated these rules in favor of more specific alternatives
  • Migration: Remove MD002 and MD006 from your .rumdl.toml config if present

• Refactoring: Modernized codebase with Rust 1.91.0 features

  • Migrated once_cell::sync::Lazy to std::sync::LazyLock (stable in Rust 1.80)
  • Improved error handling by replacing unwrap()/expect() with proper error propagation
  • Replaced defensive fallbacks with unreachable!() where appropriate
  • Eliminated unreachable panics and improved code robustness
  • Removed _fix boolean redundancy and cleaned up dead code

• Refactoring: HTML comment detection centralized

  • MD033 now uses centralized html_utils::find_html_comments() for consistency
  • Eliminates duplicate HTML comment parsing logic

Performance

• 12-15% speed improvement from pulldown-cmark migration
  • Migrated link/image parsing from regex-based approach to pulldown-cmark parser
  • Benchmark results: 12-15% faster on representative markdown files
  • More accurate CommonMark compliance
  • Better handling of edge cases and complex markdown structures

Downloads

File	Platform	Checksum
rumdl-v0.0.172-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.172-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.172-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.172-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.172-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.172-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.172-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD060: Table column formatting with markdownlint compatibility
  • Full table formatting rule with auto-fix capability
  • Four formatting styles: aligned, compact, tight, and any (default)
  • any style detects existing formatting and enforces consistency
  • Supports CJK characters and emoji
  • Handles alignment indicators (:---, :---:, ---:)
  • Skips ZWJ emoji sequences to prevent corruption
  • Configuration: MD060.enabled = false (opt-in), MD060.style = "any"

Fixed

• MD053: CommonMark compliance for list continuations

  • Fixed false positives when backtick references appear in list continuation paragraphs
  • Enhanced ordered list marker detection for multi-digit lists (10., 123.)
  • Implemented column-based indentation model per CommonMark spec
  • Distinguishes list continuation paragraphs from code-in-lists
  • Validated against 1,562 markdown files with 0 false positives

• LSP: Global config fallback

  • Fixed global config loading when no project-specific config exists
  • Now properly falls back to ~/.config/rumdl/.rumdl.toml
  • Added test coverage for fallback behavior

• LSP: Fixed test expectations for camelCase serialization

  • LSP initialization options use camelCase per LSP specification
  • Corrected test assertions to match actual camelCase behavior

• Fix mode: Type-safe exit code semantics

  • Added FixMode enum for clear fix/check mode distinction
  • Improved code maintainability and type safety

Changed

• ⚠️ BREAKING: MD013 tables default changed to false
  • Previously defaulted to true, causing conflicts with table formatting rules
  • Now defaults to false for better user experience
  • Migration: If you rely on MD013 checking table line lengths, add to .rumdl.toml:

    [MD013]
    tables = true
    

  • This prevents false positives when using MD060 or other table formatting tools

Downloads

File	Platform	Checksum
rumdl-v0.0.171-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.171-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.171-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.171-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.171-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.171-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.171-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• Include non-standard file extensions (#127)
  • New --include CLI flag to check files with non-standard extensions
  • Example: rumdl check --include "*.txt" --include "*.text"
  • Useful for documentation files with custom extensions
  • Respects .rumdl.toml configuration: include = ["*.txt", "*.text"]

Fixed

• MD055: Preserve user formatting when fixing pipe placement (#129)

  • Changed from full table reconstruction to surgical pipe addition/removal
  • User's intentional spacing and alignment are now preserved
  • Follows Unix philosophy: do one thing (fix pipes) well
  • Example: | Cell 1 | Cell 2 → | Cell 1 | Cell 2 | (spacing preserved)

• MD053: Allow backtick references with :: and spaces (#128)

  • Fixed false positives for Rust-style references like [`std::vec::Vec`]
  • Now correctly handles references containing :: within backticks
  • Improves accuracy for Rust documentation and technical content

Documentation

• MD028: Clarified rule behavior for consecutive blockquotes (#126)
  • Updated documentation to accurately reflect that MD028 flags consecutive blockquote starts
  • Not a bug - working as designed per markdownlint specification
  • Prevents confusion about expected behavior

Changed

• Rust toolchain updated to 1.91.0 (from 1.89.0)
  • Ensures compatibility with latest Rust features and improvements
  • Better performance and compilation times

Downloads

File	Platform	Checksum
rumdl-v0.0.170-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.170-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.170-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.170-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.170-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.170-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.170-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Performance

MASSIVE PERFORMANCE IMPROVEMENTS: This release delivers 7-53x faster linting through systematic elimination of O(n²) bottlenecks and algorithmic optimizations. rumdl is now 16-29x faster than markdownlint-cli2 on real-world repositories.

• Fix catastrophic O(n²) bottleneck in FilteredLinesIter ⭐ THE GAME CHANGER

  • Eliminated content.lines().collect() from inside Iterator::next() method
  • Single-file optimization delivered 7,600x speedup for affected rules
  • MD011: 6.00s → 0.785ms (7,644x faster)
  • MD012: 5.95s → 1.643ms (3,621x faster)
  • Impact: Stress test (10k lines): 9,987ms → 187ms (53x faster)
  • Impact: Rust Book (478 files): 2,646ms → 269ms (9.8x faster)
  • Impact: PyO3 (76 files): 2,004ms → 262ms (7.6x faster)

• Pre-compute LintContext data structures to eliminate redundant work

  • LineIndex: Eliminated 46× content cloning across all rules
  • Jinja template ranges: Pre-computed once instead of O(n×m) scanning
  • Table blocks: Computed once instead of 4× independent scans per document
  • HTML comment ranges: Pre-computed with 50-70x speedup
  • Code block line mapping: Optimized with binary search instead of linear scan
  • Autodoc blocks (MkDocs): Pre-computed to avoid O(n²) scaling

• Optimize link and image parsing with binary search

  • Replaced linear search with binary search for code span checks
  • Faster link/image parsing across all reference-based rules

• Replace regex with byte-level parsing for better performance

  • List detection: Manual byte scanning instead of regex
  • Blockquote prefix: Byte-level parsing instead of regex
  • Line info parsing: Eliminated redundant blockquote prefix parsing

• Streaming parser architecture

  • Replaced AST parsing with pulldown-cmark streaming for lower memory overhead
  • Better scalability for very large documents

• MD046 optimization

  • Pre-compute list/tab contexts
  • Use ctx.code_blocks instead of independent detection

Benchmarks

vs Previous Version (v0.0.168):

• Rust Book (478 files): 2,646ms → 269ms (9.8x faster)
• Stress Test (10,514 lines): 9,987ms → 187ms (53.4x faster)
• PyO3 (76 files): 2,004ms → 262ms (7.6x faster)

vs markdownlint-cli2 (industry standard):

• Rust Book: 10.3s vs 0.35s (29.4x faster)
• PyO3: 4.4s vs 0.26s (16.9x faster)

Current Performance:

• 0.7ms per file (Rust Book)
• 6.3x parallelization efficiency
• Zero O(n²) algorithmic bottlenecks remaining

Added

• MDX and Quarto flavor support
  • New flavors: MarkdownFlavor::MDX and MarkdownFlavor::Quarto
  • JSX component handling: Skip linting inside JSX elements
  • ESM import/export support: Ignore JavaScript import/export statements
  • Quarto code chunk support: Recognize {r}, {python} chunk delimiters
  • Essential for modern React-based documentation and data science workflows

Fixed

• MD011: Intelligent URL vs text detection in reversed links

  • Smarter classification of link components as URL or text
  • Reduces false positives in edge cases like (Generic<T>)[link]
  • Correctly handles (http://url)[text] vs (text)[#anchor]
  • Improved heuristics for ambiguous single-word patterns

• MD013: Preserve HTML blocks in list items during reflow

  • HTML blocks inside list items are now preserved during auto-fix
  • Prevents broken indentation and tag structure
  • Better handling of complex nested content

Changed

• Architecture improvements for pre-computation pattern
  • LintContext now owns shared data structures
  • Rules consume pre-computed data instead of duplicating work
  • Consistent binary search APIs for range lookups
  • Foundation for future optimizations

Downloads

File	Platform	Checksum
rumdl-v0.0.169-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.169-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.169-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.169-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.169-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.169-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.169-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• CLI: Support for Quarto (.qmd) and RMarkdown (.rmd/.Rmd) files

  • Added support for .qmd (Quarto), .rmd and .Rmd (RMarkdown) file extensions
  • Enables markdown linting for data science and scientific documentation workflows
  • Particularly useful for Jupyter-based publishing and reproducible research documents

• LSP: will_save_wait_until for proper auto-fix on save

  • Implemented LSP textDocument/willSaveWaitUntil capability
  • Provides proper auto-fix on save support in compatible editors
  • More reliable than textDocument/didSave approach
  • Ensures fixes are applied before file is actually saved to disk

• MD033: LSP Quick Fix to remove HTML tags while keeping content

  • New code action removes HTML opening and closing tags while preserving inner content
  • Helps convert inline HTML to plain text when needed
  • Available through editor Quick Fix menu (Ctrl+. or Cmd+.)

Fixed

• MD013: Skip auto-fix for list items containing HTML tags

  • Prevents broken auto-fix when HTML tags are present in list items
  • HTML structure (indentation, tag hierarchy) is now preserved
  • Errors are still reported but no destructive fix is applied
  • Pragmatic solution until full HTML-aware reflow is implemented
  • Fixes issues where tags like </details> were split or indentation was lost

• MD013: Fix incorrect sentence splitting after abbreviations in sentence-per-line mode

  • No longer incorrectly splits sentences after common abbreviations (e.g., etc., i.e., Dr., Mr.)
  • Improved sentence detection algorithm for better accuracy
  • Prevents unwanted line breaks in the middle of sentences

• MD013: Prevent autolinks from being parsed as HTML tags

  • Autolinks like <https://example.com> are no longer treated as HTML
  • Fixes false positives in HTML detection that could skip auto-fix unnecessarily
  • Properly distinguishes between markdown autolinks and actual HTML tags

• MD013: Prevent content duplication in sentence-per-line reflow

  • Fixed bug where content could be duplicated during paragraph reflow
  • Ensures each sentence appears exactly once in reflowed output
  • Improves reliability of auto-fix in sentence-per-line mode

• MD013: Improve sentence-per-line error messages and highlighting

  • Better error messages that clearly indicate sentence-per-line violations
  • More accurate highlighting of problematic text
  • Helps users understand what needs to be fixed

• MD013: Skip template directives at paragraph start in sentence-per-line mode

  • Template directives (like {{ variable }}) at start of paragraphs no longer cause issues
  • Prevents false positives in templated markdown files
  • Improves compatibility with static site generators and template engines

• MD013: Treat template directives as paragraph boundaries

  • Template directives now properly separate paragraphs during reflow
  • Prevents template syntax from being joined with regular content
  • Better handling of mixed template and markdown content

• MD013: Join single-sentence paragraphs in sentence-per-line mode

  • Single-sentence paragraphs that span multiple lines are now properly joined
  • Fixes issues where short paragraphs were incorrectly flagged
  • Improves consistency of sentence-per-line formatting

• MD013: Handle multiple spaces and multi-line paragraphs in sentence-per-line mode

  • Better handling of paragraphs with inconsistent spacing
  • Multi-line paragraphs are now correctly reflowed
  • Fixes edge cases in whitespace handling

• MD052: Preserve backtick-wrapped patterns with dots in MkDocs mode

  • Backtick-wrapped references like `[foo.bar]` now preserve dots in slugs
  • Matches MkDocs behavior of treating code-wrapped text literally
  • Prevents false positives for code examples in documentation

• MD052: Support Pandoc citations and inline footnotes in RMarkdown/Quarto

  • Recognizes Pandoc citation syntax: [@citation], @citation, [-@citation]
  • Recognizes inline footnote syntax: ^[footnote text]
  • No longer treats these as reference-style links
  • Essential for academic and scientific writing in RMarkdown and Quarto

• MD033: Only report opening HTML tags, not closing tags

  • MD033 violations now only report the opening tag of an HTML element
  • Reduces noise in linting output (one violation per element vs two)
  • Closing tags like </div> are no longer separately reported
  • Makes HTML-related warnings clearer and less redundant

• MD018: Skip CSS selectors and JS code inside HTML blocks

  • CSS selectors like #slide-1 inside <style> tags no longer trigger MD018
  • JavaScript code inside <script> tags is properly ignored
  • Prevents false positives for Quarto and RMarkdown files with embedded HTML/CSS/JS
  • Particularly important for interactive documents and custom styling

• MD012: Enforce exactly 1 newline at EOF and clean LSP logging

  • Files now must end with exactly one newline character (not zero, not two)
  • Aligns with POSIX standard and common editor behavior
  • Improved LSP logging with less noise

• CI: Use cargo run instead of release binary in rumdl pre-commit hook

  • Pre-commit hooks now use cargo run for more reliable execution
  • Prevents issues with stale release binaries during development
  • Better integration with cargo workflow

• Schema: Allow root-level rule sections like [MD013] in config validation

  • Configuration schema now correctly allows [MD013] style sections
  • Fixes false validation errors for valid TOML config
  • Better compatibility with common configuration patterns

Changed

• Refactor: Detect HTML blocks before parsing headings

  • Reordered LintContext initialization to detect HTML blocks first
  • Headings are no longer detected inside HTML blocks (like <style> or <script>)
  • Architectural improvement that prevents multiple false positives
  • Benefits MD018 and other heading-related rules
  • More correct parsing aligned with markdown specifications

• Refactor: Use filtered_lines() for front-matter handling in MD011 and MD012

  • Improved front-matter handling using consistent filtered_lines API
  • Better code reuse and maintainability
  • More reliable front-matter detection across rules

Downloads

File	Platform	Checksum
rumdl-v0.0.168-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.168-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.168-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.168-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.168-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.168-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.168-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• Configuration validation with fuzzy-match suggestions

  • Comprehensive unknown key detection for .rumdl.toml and pyproject.toml
  • Intelligent "did you mean?" suggestions using Levenshtein distance algorithm
  • File path context in validation warnings for easy debugging
  • Catches typos in global options, rule names, and rule options
  • Example: line-lenght → suggests line-length, reflw → suggests reflow
  • Zero-dependency implementation with configurable similarity threshold
  • Helps users catch configuration mistakes before they cause confusion

• MD053: Support for community comment-style references

  • Recognizes and ignores reference-style link syntax used as comments
  • Supports widely-used patterns: [//]: # (comment), [comment]: #, [note]: #, [todo]: #, [fixme]: #, [hack]: #
  • Any reference with just # as URL is treated as a comment
  • While not in CommonMark/GFM specs, used across 23+ markdown implementations
  • Complements HTML comments with a less HTML-like syntax option
  • Improves compatibility with existing markdown practices

• MD013: line-length = 0 to disable all line length checks

  • Setting line-length = 0 now completely disables MD013 rule
  • Provides explicit way to turn off line length validation entirely
  • More intuitive than previous workarounds
  • Useful when line length management is handled by other tools or not desired

• MD051: mdbook template support

  • Added detection and slug generation for mdbook templates
  • Recognizes {{#template path/to/file.md}} syntax
  • Properly generates GitHub-compatible slugs for template-included headings
  • Improves compatibility with mdbook documentation projects

• LSP: Manual "Reflow paragraph" code action for MD013 warnings

  • New code action available for MD013 line length warnings when auto-reflow is disabled
  • Allows users to manually reflow specific paragraphs without enabling global reflow in config
  • Appears as "Reflow paragraph" in Quick Fix menu (not marked as preferred, so won't trigger on save)
  • Intelligently detects paragraph boundaries and reflows entire paragraph, not just the flagged line
  • Respects line length limit from warning message or defaults to 80 characters
  • Provides a way to try paragraph reflow before committing to enabling it globally
  • Gives users fine-grained control over which paragraphs to reflow

Fixed

• LSP: Preserve trailing newline in reflow action

  • Manual reflow code action now correctly preserves trailing newlines
  • Prevents unwanted file modifications from reflow operations
  • Maintains document structure integrity

• LSP: Improve logging and resolve auto-fix issues

  • Enhanced LSP server logging for better debugging
  • Resolved various auto-fix edge cases and reliability issues

• MD051: Correct GitHub slug generation for angle brackets

  • Fixed incorrect slug generation for headings containing angle brackets
  • Now properly handles special characters in anchor generation
  • Improves accuracy of link validation for complex headings

Changed

• MD033: Remove unhelpful message suffix

  • Simplified warning messages for inline HTML detection
  • Removed redundant information to reduce noise
  • Cleaner, more focused error messages

• Code cleanup: Remove dead code

  • Removed unused LinkImageStyle enum from MD054
  • General refactoring to improve maintainability
  • Fixed clippy warnings

Documentation

• MD033: Document mdbook use case for semantic HTML
  • Added documentation about using semantic HTML in mdbook projects
  • Clarifies when and why inline HTML might be intentionally used
  • Helps users understand legitimate use cases for HTML in markdown

Downloads

File	Platform	Checksum
rumdl-v0.0.167-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.167-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.167-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.167-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.167-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.167-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.167-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Added

• MD013: paragraphs field to control paragraph line length checks (resolves #121)
  • New boolean config field paragraphs (defaults to true) allows disabling line length warnings for paragraph text
  • Enables sentence-per-line formatting workflows without line length validation noise
  • Still checks headings, tables, code blocks, blockquotes, and HTML when paragraphs: false
  • Useful for semantic line breaks where sentence length is determined by content, not arbitrary limits
  • Example configuration:

    MD013:
      paragraphs: false  # Don't warn about long paragraphs
      code-blocks: true  # Still check code blocks
      tables: true       # Still check tables
      reflow: true
      reflow-mode: "sentence-per-line"
    

Downloads

File	Platform	Checksum
rumdl-v0.0.166-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.166-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.166-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.166-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.166-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.166-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.166-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

Fixed

• MD040: Always preserve indentation when adding language tags (fixes #122)
  • The MD040 rule was incorrectly removing indentation from code blocks when adding language tags
  • This broke list structure when code blocks were part of list items
  • Root cause: The fix logic had conditional behavior that would remove indentation for "standalone" code blocks
  • Now always preserves original indentation regardless of context
  • Removed 50+ lines of unnecessary is_in_nested_context() helper logic
  • Added comprehensive tests for various indentation scenarios (0, 2, 4, 6 spaces)

Added

• Conventional Commits validation hook: Git commit-msg hook validates commit message format

  • Enforces Conventional Commits specification for all commits
  • Provides helpful error messages for invalid formats
  • Ensures consistent commit history for changelog generation

• Automated changelog generation with git-cliff:

  • Added make changelog-draft for previewing CHANGELOG updates
  • Semi-automated workflow: generate draft, enhance with details, commit
  • Conventional Commits integration for automatic categorization

Changed

• Pre-push hook optimization: Use dev profile instead of full suite for faster testing
  • Prevents pre-push hook from hanging on slower machines
  • Maintains adequate test coverage while improving developer experience

Downloads

File	Platform	Checksum
rumdl-v0.0.165-x86_64-unknown-linux-gnu.tar.gz	Linux x86_64	checksum
rumdl-v0.0.165-x86_64-unknown-linux-musl.tar.gz	Linux x86_64 (musl)	checksum
rumdl-v0.0.165-aarch64-unknown-linux-gnu.tar.gz	Linux ARM64	checksum
rumdl-v0.0.165-aarch64-unknown-linux-musl.tar.gz	Linux ARM64 (musl)	checksum
rumdl-v0.0.165-x86_64-apple-darwin.tar.gz	macOS x86_64	checksum
rumdl-v0.0.165-aarch64-apple-darwin.tar.gz	macOS ARM64 (Apple Silicon)	checksum
rumdl-v0.0.165-x86_64-pc-windows-msvc.zip	Windows x86_64	checksum

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.