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miniz_oxide

0.9.1950M downloads/moFrommi/miniz_oxide ↗New releases in your daily digest, changelog included.

DEFLATE compression and decompression library rewritten in Rust based on miniz

Last release 6 months ago
13 Mar 2026
Release timing varies
gaps range from 1 weeks to 7 months
Some releases are documented
notes for 19 of 41 stable releases
6 versions withdrawn
withdrawn after publishing
9 years old
47 releases · first in 2017

Release timeline

47 releases since 2017

20172019202120232025

Releases

0.9.113 Mar 2026
reject incomplete Huffman trees with max code length > 1 (#190) - (c40992a) - Lilith River
Bug Fixes

reject incomplete Huffman trees with max code length > 1 (#190) - (c40992a) - Lilith River

bump simd_adler32 dependency version (needed for wasm issue fix) - (a9b3756) - oyvindln

Other

add wasmtime to workflow for running tests with wasip1 - (f70ad10) - oyvindln

box LZOxide.codes on wasm32 to reduce stack allocation (#189) - (d0f3e0c) - Fabrício Bracht
Open source →
0.9.012 Jan 2026
Version bump due to a minor API break for having to add enum variants. Many enums have been made non_exhaustive to make it easier to avoid API breaks

Version bump due to a minor API break for having to add enum variants. Many enums have been made non_exhaustive to make it easier to avoid API breaks in the future. The minimum rust version is now 1.60.

Bug Fixes

(deflate) simplify stored compression, fixes to updating compresson level after start - (c5a7662) - oyvindln
(deflate) make more stuff non_exhaustive, reduce deflate stack usage a tiny bit - (cd2d14f) - oyvindln
(miniz_oxide) make tdeflflush and compressionstrategy non exhaustive - (130d51d) - oyvindln
fix flush test, make new simpler init function for compressoroxide and make flag creation function const - (3bb0d51) - oyvindln
make more funtions const and make tinflstatus non_exhaustive - (84a94e8) - oyvindln

Documentation

(inflate) add documentation and doctest for decompress_slice_iter_to_slice - (97465ca) - oyvindln

Features

feat(deflate): add window_bits feature for deflate, don't set wbits - (e70e395) - oyvindln

Other

Implement support for partial flushes (#179) - (2ede365) - Jonathan Behrens
Add decompress_with_limit to handle ring buffers (#183) - (bac1abe) - peckpeck
Flush improvements (#185) - (0d276ac) - Jim Peters
Fix flush_block to always insert zlib header correctly (#187) - (414d9b8) - Jim Peters

Open source →

0.8.99 Jun 2025

bump version and update changelog

Open source →

Additional notes

Other

Remove compiler-builtins from rustc-dep-of-std dependencies (#173) - (025c06e) - Trevor Gross

Open source →

0.8.88 Apr 2025

bump version and changelog

Open source →

Additional notes

Bug Fixes

(inflate) fix possible attempt to subtract with overflow (#172) - (db85297) - Tymoteusz Kubicz
(inflate) use wrapping instead of saturating in transfer and add test cate for overflow panic in debug mode - (4ed4535) - oyvindln
disable a bunch more stuff that is not used when compiled as part of rustc - (bf3cca6) - oyvindln
add fuzz target for running via flate2 - (adadb9f) - oyvindln

Open source →

0.8.63 Apr 2025withdrawn

fix: add missing test data

Open source →

Additional notes

Yanked as it broke semver due to adding an enum variant - fixed in 0.8.7 by adding the new functionality as an optional feature for now.

Bug Fixes

(deflate) help the compiler evade two bounds checks to improve compression performance a little - (633e59f) - oyvindln
(deflate) further deflate performance improvements especially on fast mode - (5a65104) - oyvindln
(docs) update miniz_oxide readme a bit - (743ae50) - oyvindln
(inflate) don't use bit reverse lookup table when not using alloc and make it smaller - (8e331bb) - oyvindln
(inflate) correctly return MZError::buf from inflate on incomplete stream - (061069e) - oyvindln
(inflate) improve inflate perf in some cases when using wrapping buffer - (44a3e1b) - oyvindln
(inflate) evade more bounds checks in inflate and disable stop on block boundary code when compiled as dep of rustc - (953a54d) - oyvindln
(inflate) skip stream module when compiling as part of rustc std as it's not used there - (073160c) - oyvindln
rename serde feature, separate serde test - (eee6524) - oyvindln
remoe unused serde BigArray implementation sizes and update Readme - (f73670a) - oyvindln
Block boundary test and cleanup (#171) - (82ada74) - Philip Taylor

Features

add derive(Serialize, Deserialize) to DecompressorOxide (#166) - (c9e5996) - dishmaker
Add API to support random access at block boundaries (#170) - (240bcdd) - Philip Taylor

Open source →

0.8.521 Feb 2025

bump version and update changelog

Open source →

Additional notes

Bug Fixes

(deflate) some cleanups and evade a bounds check in compress_lz_codes - (4c38ff8) - oyvindln
(deflate) fix bug causing 0 length stored block to be output incorrectly causing corrupt stream - (3d62e6b) - oyvindln

Open source →

0.8.411 Feb 2025

update license and changelog

Open source →

Additional notes

Bug Fixes

(deflate) work around upstream rust change causing performance regression - (7014124) - oyvindln
(doc) typo on example code (#162) - (2119168) - Iván Izaguirre
(inflate) Guard against edge case with invalid match distance wrapping around too far when using wrapping buffer - (4037fee) - oyvindln
(deflate) Avoid stack overflow when initializing HashBuffers. (#164) - (921bc2c) - Lukasz Anforowicz

Open source →

0.8.313 Jan 2025

bump changelog and version

Open source →

Additional notes

Bug Fixes

(bench) add some basic criterion benchmarks - (ac03751) - oyvindln
(deflate) write directly to output buffer instaed of bit buffer to reduce overhead and improve performance of stored blocks a little - (97ee3f1) - oyvindln
(deflate) split some code into new module and fix panic in pad_to_bytes from prev commit - (04973ca) - oyvindln
(deflate) move stored level to it's own function and simplify to improve performance - (1f829d2) - oyvindln
(deflate) remove no longer needed checks for raw mode in compress_normal and commend out accidentally enabled criterion dev dep - (f357aa1) - oyvindln
(miniz_oxide) add richgel99 (original miniz author) as author and add copyright info from orig miniz in license files - (c8a4485) - oyvindln

Open source →

0.8.117 Dec 2024withdrawn

update changelog and version

Open source →

Additional notes

Bug Fixes

(fuzzing) update fuzzing to work again - (b7a5908) - user
(deflate) use built in fill instead of custom memset function - (c0662f1) - oyvindln
(inflate) use smaller types in inflate struct, split up huffman table arrays to make struct smaller, make zlib level 0 if using rle, other minor tweaks - (c5f8f76) - oyvindln
(inflate) use function instead of lookup table for distance extra bits for tiny space/perf saving and fix clippy warnings - (9f1fc5e) - oyvindln
(inflate) use inputwrapper struct instead of iter to simplify input reading and change some data types for performance - (423bdf8) - oyvindln
(inflate) don't use lookup table on aarch64 and loong since we have bit rev instruction there, fix clippy warnings and fix conditional in tree_lookup that seemed to break perf - (083e4b3) - oyvindln
(inflate) fill fast lookup table with invalid code value instead of zero so we can avoid check in hot code path givin a small performance boost - (f73e6a4) - oyvindln
(inflate) skip pointlessly clearing unused huffman code length tree - (b3b1604) - oyvindln
(inflate) use built in fill instead of custom memset function - (e6ee54e) - oyvindln
(tests) change workflow to use rust 1.56.0 - (7258c06) - oyvindln
(deflate) set min window bits in inflate header when using rle - (02a8857) - oyvindln
(inflate) Derive Clone for InflateState to allow random-access reads (#157) - (0a33eff) - Phil Hord

Open source →

0.8.08 Aug 2024

This release changes to using the forked adler2 crate as the original adler crate has not seen any updates in the last 3 years and the repositories ha

Major changes

This release changes to using the forked adler2 crate as the original adler crate has not seen any updates in the last 3 years and the repositories have been marked as archived. The minimum rust version has also been bumped slightly to make room for future improvements.

Bug Fixes

(miniz_oxide) update edition, make more functions const, fix warning, update to adler2 - (b212371) - oyvindln

Open source →

0.7.418 Jun 2024

(miniz_oxide) simplify init_tree a little and use a smaller lookup table for bit reversal - (2ba520a) - oyvindln

Bug Fixes

(miniz_oxide) simplify init_tree a little and use a smaller lookup table for bit reversal - (2ba520a) - oyvindln
(miniz_oxide) evade bounds checks in record_match to improve compression performance a little - (d1de8db) - oyvindln
(deflate) evade a bounds check in deflate for a small perf improvement - (b4baed3) - oyvindln

Other

disable c miniz part in miniz_oxide_c_api of bench - (2f0a9a3) - oyvindln

Open source →

0.7.317 May 2024

(miniz_oxide) Fix version specification for simd-adler32 (#150) - (35c71e1) - Daniel Müller

Bug Fixes

(miniz_oxide) Fix version specification for simd-adler32 (#150) - (35c71e1) - Daniel Müller
Fix clippy lints (#151) - (7c758d4) - Gnome!
(miniz_oxide) Remove lookup table from rustc-std builds (#152) - (434d9ab) - Gnome!

Open source →

0.7.23 Feb 2024

(inflate) Return MZError::Buf when calling inflate with MZFlush::Finish in line with orig miniz and zlib - (0f50464) - oyvindln

Bug Fixes

(inflate) Return MZError::Buf when calling inflate with MZFlush::Finish in line with orig miniz and zlib - (0f50464) - oyvindln
(miniz_oxide) fix tests when with-alloc is not enabled (running with --no-default-features) and make add test run of it to ci - (4fd32da) - oyvindln
(miniz_oxide) fix compiler and clippy warnings - (657c5b2) - oyvindln

Documentation

fix typo (#142) - (6e3e813) - Brian Donovan

Performance

Code size reduction from panic reduction (#145) - (201ef39) - Kornel
Optimize match_len == 3 (#146) - (10ff5a0) - Kornel

Other

Add a roundtrip fuzz target (#138) - (ee29e37) - Sergey "Shnatsel" Davidoff

0.7.1 (2023-02-02)

inflate:
- Fix for older versions of Rust (thanks jasonish) (a65d0751)

0.7.0 (2023-02-01)

Yanked release

Open source →

0.6.41 Feb 2023withdrawn

Yanked release due to version requirement bump

inflate:
- move debug assert condition to if stmt (thanks connorskees) (b6d8824a)

Open source →

0.6.31 Feb 2023withdrawn

Yanked release due to version requirement bump

Bug Fixes

inflate:
- Reject input with too many litlen codes as per spec/zlib (f4ee585e), closes #130
deflate:
- Remove #[inline(always)] from CompressorOxide::default() (thanks jrmuizel) (c7643aa2)

Features

inflate:
- optimize inflate::core::transfer (thanks connorskees) (dd2fa3e3)
- optimize inflate::core::init_tree by precomputing reversed bits (thanks connorskees) (bf660972), closes #82

Other

various typo/doc/ci fixes (thanks LollipopFt, striezel, jarede-dev)

Open source →

0.6.021 Aug 2022

Fix output size limit handling (thanks Shnatsel) (c08ac1c6), closes #119)

Bug Fixes

inflate:
- Fix output size limit handling (thanks Shnatsel) (c08ac1c6), closes #119)

Features

inflate:
- Return currently decompressed data on failure in decompress_to_vec.. functions (81796330), closes #113)
- Allow for running without allocator (inflate-only) (96ad0b80), closes #111)

0.5.4 (2022-05-30)

Bug Fixes

inflate: Backport fix for #119) for 0.5 releases (7d38417c)

0.5.3 (2022-05-30)

Clippy warnings and doc fixes (thanks @hellow554 and @MichaelMcDonnell)

Bug Fixes

core: Don't use simd-adler32 when building as part of std (5869904c)

0.5.2 (2021-12-04)

Bug Fixes

inflate: Don't return HasMoreOutput if we are waiting for more input to read adler32 (5869904c)

Features

inflate: Add decompress_slice_iter_to_slice function. (a359d678)

0.5.1 (2021-11-11)

Doc updates and minor refactor

Open source →

0.5.04 Nov 2021

Don't use autofcg for alloc (a9bf654f, closes #106)

Bug Fixes

core:
- Don't use autofcg for alloc (a9bf654f, closes #106)

Features

core:
- Add github actions CI and remove unused feature (694803aa, closes #107)
- Add optional use of simd-adler32 instead of adler behind simd feature flag (19782aa)
inflate:
- add option to ignore and not compute zlib checksum when decompressing (2e9408ae, closes #102)

0.4.4 (2021-02-25)

Features

core:
- Update adler to 1.0 (b4c67ba0)
- Mark some internal functions as const (52ce377a)

0.4.3 (2020-10-07)

Features

core:
- Increase the license options (78d13b47)
- Add forbid unsafe code to build (80859093)

Bug Fixes

core:
- in-libstd build attempting to use std (5a5522de)
- Run CI on 1.34 (c6f6cd42)

0.4.2 (2020-09-13)

Features

core:
- Add automatic alloc detection (0c67dc5c)

Bug Fixes

inflate:
- Add missing pub to FullReset's data format (743d6d37)

0.4.1 (2020-08-22)

Features

inflate:
- Add support for limiting output size when decompressing to vec (f8c25f3f)
- Introduce reset policy to control InflateState::reset (1f95a16f), closes #89)
core:
- Add an optional feature for 1.34.2 backwards compatibility (d18e847d)

Open source →

0.4.028 Jun 2020

Switch from adler32 to adler crate

Features

core:
- Switch from adler32 to adler crate (ad0f8fef)
- Flag miniz_oxide as a #![no_std] library (7f5aedd7)

Open source →