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Published 17 days ago • Latest: 1.0.0
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Pure Dart LZ4 and LZ4HC (block + frame) with streaming support.

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Changelog #

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased] #

0.0.6 - 2025-12-18 #

  • Fix xxHash32 parity on dart2js by enforcing strict 32-bit arithmetic and updating vectors.
  • Reduce allocations in LZ4 block and LZ4HC encoders by reusing scratch buffers.
  • Optimize streaming frame encoder history window shifting.
  • Make CLI interop tests VM-only so dart test -p chrome can run without dart:io failures.
  • Add benchmark baseline snapshot and a helper tool to compare benchmark output to baseline.
  • Run full test suite on Chrome in CI.

0.0.5 - 2025-12-17 #

  • Add legacy LZ4 frame decode support (lz4 -l / magic 0x184C2102) for sync and streaming decoders.
  • Add additional frame interop vectors and streaming boundary tests.
  • Add benchmark methodology docs and optional scheduled CI benchmark workflow.
  • Add security/supply-chain workflows and maintainer documentation updates.

0.0.4 - 2025-12-16 #

  • Add streaming LZ4 frame encode (lz4FrameEncoder) alongside streaming decode.
  • Add CI enforcement for dart doc and pana 0.23.3.
  • Improve public API Dartdoc coverage.
  • Update README and example for streaming frame encode usage.

0.0.3 - 2025-12-16 #

  • Implement LZ4 block encode/decode.
  • Implement LZ4 frame encode/decode and streaming frame decode.
  • Add xxHash32 implementation, including incremental (streaming) support.
  • Implement initial LZ4HC block compression and wire lz4Compress(level: hc).
  • Add unit tests and benchmarks covering block/frame/LZ4HC.

0.0.2 - 2025-12-15 #

  • Prepare v0.0.2 to validate automated publishing via GitHub Actions.

0.0.1 - 2025-12-15 #

  • Initial repository scaffolding.
  • Add core internal primitives (ByteReader/ByteWriter) and unit tests.

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Pure Dart LZ4 and LZ4HC (block + frame) with streaming support.

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