Changelog for libdeflate-devel-1.21-2.3.x86_64.rpm :

* Sun Aug 18 2024 Dirk Müller - update to 1.21:
* Fixed build error on x86 with gcc 8.1 and gcc 8.2.
* Fixed build error on x86 when gcc 11 is paired with a binutils version that doesn\'t support AVX-VNNI e.g. as it is on RHEL 9.
* Fixed build error on arm64 with gcc 6.
* Fixed build error on arm64 with gcc 13.1 and later with some - mcpu options.
* Enabled detection of dotprod support in Windows ARM64 builds.
* Wed Apr 03 2024 Dirk Müller - update to 1.20:
* Improved CRC-32 performance on recent x86 CPUs by adding
* VPCLMULQDQ-accelerated implementations using 256-bit and 512-bit vectors.
* Improved Adler-32 performance on recent x86 CPUs by adding
* VNNI-accelerated implementations using 256-bit and 512-bit vectors.
* Improved CRC-32 and Adler-32 performance on short inputs.
* Optimized the portable implementation of Adler-32.
* Added some basic optimizations for RISC-V.
* Dropped support for gcc versions older than v4.9 (released in 2014) and clang versions older than v3.9 (released in 2016).
* Dropped support for CRC-32 acceleration on 32-bit ARM using the ARMv8 pmull or crc32 instructions.
* Mon Feb 12 2024 pgajdosAATTsuse.com- baselibs for tools and devel reportedly not needed- modified sources % baselibs.conf
* Thu Feb 08 2024 pgajdosAATTsuse.com- introduce baselibs.conf for openexr https://build.opensuse.org/request/show/1144873- added sources + baselibs.conf
* Sun Sep 17 2023 Dirk Müller - update to 1.19:
* Added new functions `libdeflate_alloc_compressor_ex()` and `libdeflate_alloc_decompressor_ex()`. These functions allow specifying a custom memory allocator on a per-compressor basis.
* libdeflate now always generates Huffman codes with at least 2 codewords. This fixes a compatibility issue where Windows Explorer\'s ZIP unpacker could not decompress DEFLATE streams created by libdeflate. libdeflate\'s behavior was
* allowed by the DEFLATE RFC, but not all software was okay with it. In rare cases, compression ratios can be slightly reduced by this change.
* Disabled the use of some compiler intrinsics on MSVC versions where they don\'t work correctly.
* libdeflate can now compress up to the exact size of the output buffer.
* Slightly improved compression performance at levels 1-9.
* Improved the compression ratio of very short inputs.
* Thu Apr 27 2023 Dirk Müller - update to 1.18:
* Fixed a bug where the build type didn\'t default to \"Release\" when using CMake 3.10 or earlier.
* Fixed a bug where some optimized code wasn\'t used when building with Clang 15 or later (x86), or with Clang 16 or later (aarch64).
* Fixed build errors with some architecture and compiler combos:
* aarch64 with Clang 16
* armv6kz or armv7e-m with gcc
* armhf with gcc (on Debian only)
* Tue Jan 24 2023 Paolo Stivanin - update to 1.17:
* Improved the compression ratio at levels 10-12 slightly, mainly levels 11-12. Some inputs (such as certain PNG files) see much improved compression ratios. As a trade-off, compressing at levels 11-12 is now about 5-20% slower.
* For consistency with zlib, the decompressor now returns an error on some invalid inputs that were accepted before.
* Fixed a build error on arm64 with gcc with certain target CPUs.
* Fixed a build error in programs/gzip.c with uClibc.
* Thu Dec 29 2022 Dirk Müller - update to 1.15:
* libdeflate now uses CMake instead of a plain Makefile.
* Mon Oct 03 2022 Dirk Müller - update to 1.14: Significantly improved decompression performance on all platforms. Examples include (measuring DEFLATE only): | Platform | Speedup over v1.13 | |------------------------------------|--------------------| | x86_64 (Intel Comet Lake), gcc | 1.287x |
* Mon Aug 08 2022 Dirk Müller - update to 1.13:
* Changed the 32-bit Windows build of the library to use the default calling convention (cdecl) instead of stdcall, reverting a change from libdeflate 1.4.
* Fixed a couple macOS compatibility issues with the gzip program.
* Tue Jul 12 2022 Dirk Müller - update to 1.12:
* Improved CRC-32 performance on short inputs on x86 and ARM.
* Improved CRC-32 performance on Apple Silicon Macs by using a 12-way pmull implementation. Performance on large inputs on M1 is now about 67 GB/s, compared to 8 GB/s before, or 31 GB/s with the Apple-provided zlib.
* Improved CRC-32 performance on some other ARM CPUs by reworking the code so that multiple crc32 instructions can be issued in parallel.
* Improved CRC-32 performance on some x86 CPUs by increasing the stride length of the pclmul implementation.
* Improved Adler-32 performance on some x86 CPUs by optimizing the AVX-2 implementation. E.g., performance on Zen 1 improved from 19 to 30 GB/s, and on Ice Lake from 35 to 41 GB/s (if the AVX-512 implementation is excluded).
* Removed the AVX-512 implementation of Adler-32 to avoid CPU frequency downclocking, and because the AVX-2 implementation was made faster.
* Improved Adler-32 performance on some ARM CPUs by optimizing the NEON
* Improved compression performance slightly.
* Detect arm64 CPU features on Apple platforms, which should improve performance in some areas such as CRC-32 computation.
* The included `gzip` and `gunzip` programs now support the `-q` option.
* The included `gunzip` program now passes through non-gzip data when both the `-f` and `-c` options are used.
* Mon Feb 14 2022 Dirk Müller - update to 1.10:
* Added an additional check to the decompressor to make it quickly detect certain bad inputs and not try to generate an unbounded amount of output.
* Cleaned up a few things in the compression code.
* Mon Jan 24 2022 Dirk Müller - update to 1.9:
* Heuristics were implemented which significantly improve the compression ratio on data where short matches aren\'t useful, such as DNA sequencing data. This applies to all compression levels, but primarily to levels 1-9.
* Levels 1 was made much faster, though it often compresses slightly worse than before (but still better than zlib).
* Levels 8-9 were also made faster, though they often compress slightly worse than before (but still better than zlib). On some data, levels 8-9 are much faster and compress much better than before; this change addressed an issue where levels 8-9 did poorly on certain files. The algorithm used by levels 8-9 is now more similar to that of levels 6-7 than to that of levels 10-12.
* Levels 2-3, 7, and 10-12 were strengthened slightly.
* Levels 4-6 were also strengthened slightly, but some of this improvement was traded off to speed them up slightly as well.
* Levels 1-9 had their per-compressor memory usage greatly reduced.
* `make install` will now install a pkg-config file for libdeflate.
* The Makefile now supports the `DISABLE_SHARED` parameter to disable building the shared library.
* Tue Jan 04 2022 Dirk Müller - update to 1.8:
* Added `-t` (test) option to `libdeflate-gunzip`.
* Unaligned access optimizations are now enabled on WebAssembly builds.
* Fixed a build error when building with the Intel C Compiler (ICC).
* Fixed a build error when building with uClibc.
* libdeflate\'s CI system has switched from Travis CI to GitHub Actions.
* Made some improvements to test scripts.
* Wed Jan 13 2021 andy great - Add workaround build fail due issue in dwz by deleting libdeflate-gunzip and replace with symlink libdeflate-gzip to fix dwz break with hardlink. boo#1180984
* Wed Jan 13 2021 Jan Engelhardt - Quantify the description\'s supposed \"fast\" claims- Adhere to shared library packaging guide and split tools off into subpackage.
* Wed Jan 13 2021 andy great - Initial package release.