v1.15.11

What's Changed

• flate: Improve level 1-3 compression by @klauspost in #678
• zstd: Improve "best" compression by @nightwolfz in #677
• zstd: Fix+reduce decompression allocations by @klauspost in #668
• zstd: Fix non-effective noescape tag by @klauspost in #667
• docs: Update s2 numbers by @klauspost in #664
• tests: Add zstd Reset and NewReader benchmarks. by @klauspost in #676

New Contributors

• @nightwolfz made their first contribution in #677

Full Changelog: v1.15.10...v1.15.11

v1.15.10

What's Changed

• Add Go 1.19 - deprecate Go 1.16 by @klauspost in #651
• zstd: Add DecodeAllCapLimit by @klauspost in #649
• flate: Improve level 5+6 compression by @klauspost in #656
• zstd: Improve "better" compresssion by @klauspost in #657
• s2: Improve "best" compression by @klauspost in #658
• s2: Improve "better" compression. by @klauspost in #635
• s2: Slightly faster non-assembly decompression by @klauspost in #646
• Use arrays for constant size copies by @klauspost in #659

Full Changelog: v1.15.9...v1.15.10

v1.15.9

What's Changed

• zstd: Fix crash on amd64 (no BMI) + Go fuzz test by @klauspost in #645
• zstd: Disable extended memory copies (amd64) by @klauspost in #644
• zstd: Allow single segments up to "max decoded size" by @klauspost in #643
• tests: Add codeql-analysis.yml by @klauspost in #642

Full Changelog: v1.15.8...v1.15.9

v1.15.8

What's Changed

• gzip: fix stack exhaustion bug in Reader.Read by @klauspost in #641
• s2: Add Index header trim/restore by @klauspost in #638
• zstd: Optimize seqdeq amd64 asm by @greatroar in #636
• zstd: Improve decoder memcopy by @klauspost in #637
• huff0: Pass a single bitReader pointer to asm by @greatroar in #634
• zstd: Branchless getBits for amd64 w/o BMI2 by @greatroar in #640
• gzhttp: Remove header before writing by @klauspost in #639

Full Changelog: v1.15.7...v1.15.8

v1.15.7

What's Changed

• s2: Fix absolute forward seeks by @klauspost in #633
• zip: Merge upstream by @klauspost in #631
• zip: Re-add zip64 fix by @klauspost in #624
• flate: Faster histograms by @klauspost in #620
• deflate: Use compound hcode by @klauspost in #622
• zstd: translate fseDecoder.buildDtable into asm by @WojciechMula in #598

Full Changelog: v1.15.6...v1.15.7

v1.15.6

What's Changed

• s2: Improve coding for long, close matches by @klauspost in #613
• s2c: Add Snappy/S2 stream recompression by @klauspost in #611
• zstd: Use configured block size by @klauspost in #605
• zstd: Fix incorrect hash table placement for dict encoding in default by @klauspost in #606
• zstd: Apply default config to ZipDecompressor without options by @klauspost in #608
• gzhttp: Exclude more common archive formats by @klauspost in #612
• s2: Add ReaderIgnoreCRC by @klauspost in #609
• s2: Remove sanity load on index creation by @klauspost in #607
• snappy: Use dedicated function for scoring by @klauspost in #614
• s2c+s2d: Use official snappy framed extension by @klauspost in #610

Full Changelog: v1.15.5...v1.15.6

v1.15.5

What's Changed

• s2: Add concurrent stream decompression by @klauspost in #602
• s2: Fix final emit oob read crash on amd64 by @klauspost in #601
• huff0: asm implementation of Decompress1X by @WojciechMula in #596
• zstd: Use 1 less goroutine for stream decoding by @klauspost in #588
• zstd: Copy literal in 16 byte blocks when possible by @klauspost in #592
• zstd: Speed up when WithDecoderLowmem(false) by @klauspost in #599
• zstd: faster next state update in BMI2 version of decode by @WojciechMula in #593
• huff0: Do not check max size when reading table. by @klauspost in #586
• flate: Inplace hashing for level 7-9 by @klauspost in #590

Full Changelog: v1.15.4...v1.15.5

v1.15.4

What's Changed

• huff0: decompress directly into output by @WojciechMula in #577
• zstd: Fix ignored crc by @klauspost in #580
• inflate: Keep dict on stack by @klauspost in #581
• zstd: Faster decoding memcopy in asm by @klauspost in #583

Full Changelog: v1.15.3...v1.15.4

v1.15.3

What's Changed

• zstd: Allow to ignore checksum checking by @WojciechMula in #572
• s2: Fix incorrect seek for io.SeekEnd by @klauspost in #575

Full Changelog: v1.15.2...v1.15.3

v1.15.2

What's Changed

• zstd: x86 assembler implementation of sequenceDecs.decode by @WojciechMula in #528
• zstd: x86 assembler implementation of sequenceDecs.executeSimple by @WojciechMula in #531
• zstd: asm version of decodeSync by @WojciechMula in #545
• s2: Simplify asm code by @klauspost in #541
• s2: Use sorted search for index by @klauspost in #555
• .github: check code generation by @mmcloughlin in #570
• Minimum version is 1.16, test on 1.18 by @klauspost in #534

New Contributors

• @mmcloughlin made their first contribution in #570

Full Changelog: v1.15.1...v1.15.2