v0.4.2

Lots of performance improvements. We're now substantially faster than other implementations for inflate (decompression), and faster in the most important cases for compression.

What's Changed

• Speed up emit_dist with precomputed length codings for static trees by @brian-pane in #264
• Add a comment to explain how Crc32HashCalc is sometimes Crc32C by @brian-pane in #266
• Fix the usage message for crc32_bench by @brian-pane in #267
• Add some comments explaining the chained hash data structure. by @brian-pane in #269
• Cleanups for struct State by @brian-pane in #274
• Begin converting match offsets in struct State to u16 by @brian-pane in #275
• Remove the cloning of scan_start & scan_end in longest_match_help by @brian-pane in #268
• Simplify deflate window by @folkertdev in #272
• cleanup of fill_window by @folkertdev in #271
• Add checks for State memory layout by @brian-pane in #278
• Update zlib-ng version 2.2.3 by @folkertdev in #282
• Move the TreeDesc fields and finish adding cache line markers to State by @brian-pane in #279
• Make various fields in the State structure smaller by @brian-pane in #281
• Hint to the compiler to inline the fill_window function by @brian-pane in #270
• Remove the padding from the State structure by @brian-pane in #283
• Optimize away compare256 for short matches by @brian-pane in #284
• Faster comparisons for priority queue by @brian-pane in #285
• Fix CI by @bjorn3 in #288
• Add CI benchmarking by @bjorn3 in #287
• fuzzer: make sure the buffer is large enough to store the input by @folkertdev in #286
• compare our and stock zlib compression levels in README by @folkertdev in #291
• specialize inflate_fast_help for avx2 by @folkertdev in #289
• gather benchmark data for chromium (only inflate is relevant) by @folkertdev in #290
• manual struct target feature by @folkertdev in #292
• Make the matches field smaller to improve cache locality by @brian-pane in #293
• apply the crc target feature to the acle crc32 implementation by @folkertdev in #294

Full Changelog: v0.4.1...v0.4.2