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crates.io · #4684 most downloaded on crates.io
Slack Morphism is a modern client library for Slack Web/Events API/Socket Mode and Block Kit
Last release 18 days ago
19 Sep 2026
Release timing varies
gaps range from 9 days to 4 months
Rarely documented
notes for 14 of the last 60 stable releases
3 versions withdrawn
withdrawn after publishing
6 years old
130 releases · first in 2020
One column per quarter.
Add chat. Stream, agents.sessions. , markdown_text, agent events + Unknown catch-all by @skymoore in #388
Full Changelog: v2.28.0...v2.29.0
docs: note Slack markdown block failure on files.completeUploadExternal by @abdolence in #383
Full Changelog: v2.27.0...v2.28.0
feat: add blocks, channels and icon args to files.completeUploadExternal by @abdolence in #381
Migration notes (2.27.0)
No code changes are required for existing apps. Details for anyone touching the affected types:
Full Changelog: v2.26.0...v2.27.0
Date and time values are now backed by jiff instead of the soft-deprecated chrono. Use the SlackUtcDateTime and SlackCivilDate aliases from the prelud…
Date and time values are now backed by jiff instead of the soft-deprecated chrono. Use the SlackUtcDateTime and SlackCivilDate aliases from the prelude instead of naming either crate.
Affected: SlackDateTime's inner value, SlackTs::to_date_time_opt(), SlackDate::to_naive_date(), and fmt_slack_date().
To keep chrono for now, enable the obsolete-chrono feature. It is deprecated and will be removed in a future release.
Typical replacements: Utc::now() becomes SlackDateTime::now(), dt.timestamp() becomes dt.as_second(), and an RFC 3339 string parses with s.parse::<SlackUtcDateTime>().
Full Changelog: v2.25.0...v2.26.0
chore: replace futures with futures-util by @Fogapod in #376
Full Changelog: v2.24.1...v2.25.0
fix: Restore pong received timestamp in WSS client by @stn in #375
chore(config): migrate Renovate config by @renovate [bot] in #368
SlackInteractionActionInfo::selected_options by @Grimeh in #370Full Changelog: v2.23.0...v2.24.0
feat: add new Block Kit blocks and elements (alert, card, carousel, context_actions, workflow button, file input) by @abdolence in #363
Full Changelog: v2.22.0...v2.23.0
fix: SlackRichTextList elements type by @abdolence in #359
Full Changelog: v2.21.0...v2.22.0
Reduce spawning tokio threads for socket mode by @abdolence
Full Changelog: v2.20.0...v2.21.0
fix(deps): update rust crate tokio-tungstenite to 0.29.0 by @renovate [bot] in #345
Full Changelog: v2.19.0...v2.20.0
feat: add files.info and files.list API methods by @co42 in #343
Full Changelog: v2.18.0...v2.19.0
chore(deps): update actions/checkout action to v6 by @renovate [bot] in #337
Full Changelog: v2.17.0...v2.18.0
fix(deps): update rust crate tokio-tungstenite to 0.28.0 by @renovate [bot] in #333
Full Changelog: v2.16.0...v2.17.0
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