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Add NEWS for 5.5.1alpha
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NEWS
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NEWS
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XZ Utils Release Notes
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XZ Utils Release Notes
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======================
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======================
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5.5.1alpha (2024-01-26)
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* Added a new filter for RISC-V binaries. The filter can be used
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for 32-bit and 64-bit binaries with either little or big
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endianness. In liblzma, the Filter ID is LZMA_FILTER_RISCV (0x0B)
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and the xz option is --riscv. liblzma filter string syntax
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recognizes this filter as "riscv".
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* liblzma:
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- Added lzma_mt_block_size() to recommend a Block size for
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multithreaded encoding
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- Added CLMUL-based CRC32 on x86-64 and E2K with runtime
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processor detection. Similar to CRC64, on 32-bit x86 it
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isn't available unless --disable-assembler is used.
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- Implemented GNU indirect function (IFUNC) as a runtime
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function dispatching method for CRC32 and CRC64 fast
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implementations on x86. Only GNU/Linux (glibc) and FreeBSD
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builds will use IFUNC, unless --enable-ifunc is specified to
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configure.
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- Added definitions of mask values like
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LZMA_INDEX_CHECK_MASK_CRC32 to <lzma/index.h>.
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- The XZ logo is now included in the Doxygen generated
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documentation. It is licensed under Creative Commons
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Attribution-ShareAlike 4.0.
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* xz:
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- Multithreaded mode is now the default. This improves
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compression speed and creates .xz files that can be
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decompressed multithreaded at the cost of increased memory
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usage and slightly worse compression ratio.
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- Added new command line option --filters to set the filter
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chain using liblzma filter string syntax.
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- Added new command line options --filters1 ... --filters9 to
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set additional filter chains using liblzma filter string
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syntax. The --block-list option now allows specifying filter
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chains that were set using these new options.
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- Added support for Linux Landlock as a sandboxing method.
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- xzdec now supports pledge(2), Capsicum, and Linux Landlock as
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sandboxing methods.
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- Progress indicator time stats remain accurate after pausing
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xz with SIGTSTP.
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- Ported xz and xzdec to Windows MSVC. Visual Studio 2015 or
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later is required.
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* CMake Build:
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- Supports pledge(2), Capsicum, and Linux Landlock sandboxing
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methods.
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- Replacement functions for getopt_long() are used on platforms
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that do not have it.
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* Enabled unaligned access by default on PowerPC64LE and on RISC-V
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targets that define __riscv_misaligned_fast.
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* Tests:
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- Added two new fuzz targets to OSS-Fuzz.
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- Implemented Continuous Integration (CI) testing using
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GitHub Actions.
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* Changed quoting style from `...' to '...' in all messages,
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scripts, and documentation.
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* Added basic Codespell support to help catch typo errors.
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5.4.6 (2024-01-26)
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5.4.6 (2024-01-26)
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* Fixed a bug involving internal function pointers in liblzma not
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* Fixed a bug involving internal function pointers in liblzma not
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