Release notes from libbzip2-rs

v0.2.1

2025-06-16T14:03:00Z

Highlights

Performance improvements for (de)compression of small inputs
Fix off-by-one error in a manual bounds check by @folkertdev in #110

What's Changed

have decompress actually decompress arbitrary bytes by @folkertdev in #104
decompress_chunked fuzzer: handle larger inputs by @folkertdev in #106
Decompress larger inputs by @folkertdev in #107
specialize rotate_right by 1 by @folkertdev in #108
Fix off-by-one error in a manual bounds check by @folkertdev in #110
Improve fuzz tests by @ros-cr in #109
rotate_right_1: special-case the 2-byte case by @folkertdev in #111
use uninitialized output buffers for the fuzzers by @folkertdev in #112
optimize fallback_sort by @folkertdev in #113

New Contributors

@ros-cr made their first contribution in #109

Full Changelog: v0.2.0...v0.2.1

v0.2.0

2025-04-16T10:55:13Z

This is technically a breaking change, but unless you rely on rust exporting C symbols, you should not run into any issues when upgrading.

highlights

the export-symbols feature now controls whether C symbols are exported. This feature is off by default (that is why this is a breaking change; the behavior of earlier versions was to export those symbols). For rust users that is almost certainly the correct default, because it means libbzip2-rs can be used together with stock bzip2 in the same project. This should fix some issues with symbol clashes between bzip2-sys and libbzip2-sys.

What's Changed

Clippy 1.85.0 by @folkertdev in #96
Clarify LICENSE file by @squell in #97
Update README.md crates.io badge by @seam345 in #100
add a export-symbols feature flag by @folkertdev in #101
use cargo llvm-cov nextest to run tests and gather coverage by @folkertdev in #102
fuzz with corpus + coverage by @folkertdev in #103

New Contributors

@seam345 made their first contribution in #100

Full Changelog: v0.1.3...v0.2.0

v0.1.3

2025-02-11T10:48:59Z

Release 0.1.3

v0.1.2

2025-02-10T12:40:31Z

What's Changed

Mostly performance improvements, primarily to compression. We've also added the semver-prefix feature flag, that will prefix all exposed symbols with a version-specific prefix, so that we don't clash with the C library (or different versions of ourselves). That means multiple versions of bzip2 can be used in the same dependency tree without any weird behavior.

run the bzip2-rs test suite by @folkertdev in #70
Add NLnet funding to readme by @erikjee in #71
refactors in un_rle_obuf_to_output_fast by @folkertdev in #72
generate the crc32 lookup table at const time by @folkertdev in #73
add an example for compression (for benchmarking) by @folkertdev in #74
extract the save area by @folkertdev in #75
Decompress shrink more fields by @folkertdev in #76
Remove double bounds check by @folkertdev in #77
Shrink huffman decode tables by @folkertdev in #78
Remove global fields by @folkertdev in #79
Bzlib macros by @folkertdev in #80
cleanups by @folkertdev in #81
Speedup compress by @folkertdev in #83
Add CI benchmarking by @bjorn3 in #82
decompress cleanups by @folkertdev in #84
Update the readme by @bjorn3 in #86
Revert accidental change in previous PR by @bjorn3 in #87
decompress.rs: faster input reading by @folkertdev in #85
Cleanup blocksort more by @folkertdev in #89
add semver-prefix feature for use by bzip2-rs by @folkertdev in #92
read coding tables in one go if there is sufficient input by @folkertdev in #90

New Contributors

@erikjee made their first contribution in #71

Full Changelog: v0.1.1...v0.1.2

Version 0.1.1

2024-12-11T14:30:06Z

Changelog

ensure that the rust-allocator can be used without std (it just needs alloc)
in no_std mode, still panic instead of calling bz_internal_error. The cdylib crate still calls bz_internal_error in its panic handler to remain compatible, but for rust users an actual panic is desirable and plays nicer with building/linking.

Version 0.1.0

2024-12-04T14:58:50Z

An initial release, consisting of 2 crates

libbz2-rs-sys is a rust crate that exposes the full bzip2 API, defined in 100% rust (no FFI is used)
libbz2-rs-sys-cdylib can be used to build a dynamic or static C library that is 100% compatible with stock bzip2