The XZ specific content has been moved from <https://tukaani.org/xz/> to <https://xz.tukaani.org/>. The old links will be kept working via redirections.
Additionally, the official XZ Embedded Git repository is now on GitHub <https://github.com/tukaani-project/xz-embedded>. The repository on git.tukaani.org will be maintained as a mirror with some delay. XZ Utils 5.4.6 and 5.5.1alpha are available at <https://xz.tukaani.org/xz-utils/>. Here is an extract from the NEWS file: 5.4.6 (2024-01-26) * Fixed a bug involving internal function pointers in liblzma not being initialized to NULL. The bug can only be triggered if lzma_filters_update() is called on a LZMA1 encoder, so it does not affect xz or any application known to us that uses liblzma. * xz: - Fixed a regression introduced in 5.4.2 that caused encoding in the raw format to unnecessarily fail if --suffix was not used. For instance, the following command no longer reports that --suffix must be used: echo foo | xz --format=raw --lzma2 | wc -c - Fixed an issue on MinGW-w64 builds that prevented reading from or writing to non-terminal character devices like NUL. * Added a new test. 5.5.1alpha (2024-01-26) * Added a new filter for RISC-V binaries. The filter can be used for 32-bit and 64-bit binaries with either little or big endianness. In liblzma, the Filter ID is LZMA_FILTER_RISCV (0x0B) and the xz option is --riscv. liblzma filter string syntax recognizes this filter as "riscv". * liblzma: - Added lzma_mt_block_size() to recommend a Block size for multithreaded encoding - Added CLMUL-based CRC32 on x86-64 and E2K with runtime processor detection. Similar to CRC64, on 32-bit x86 it isn't available unless --disable-assembler is used. - Implemented GNU indirect function (IFUNC) as a runtime function dispatching method for CRC32 and CRC64 fast implementations on x86. Only GNU/Linux (glibc) and FreeBSD builds will use IFUNC, unless --enable-ifunc is specified to configure. - Added definitions of mask values like LZMA_INDEX_CHECK_MASK_CRC32 to <lzma/index.h>. - The XZ logo is now included in the Doxygen generated documentation. It is licensed under Creative Commons Attribution-ShareAlike 4.0. * xz: - Multithreaded mode is now the default. This improves compression speed and creates .xz files that can be decompressed multithreaded at the cost of increased memory usage and slightly worse compression ratio. - Added new command line option --filters to set the filter chain using liblzma filter string syntax. - Added new command line options --filters1 ... --filters9 to set additional filter chains using liblzma filter string syntax. The --block-list option now allows specifying filter chains that were set using these new options. - Added support for Linux Landlock as a sandboxing method. - xzdec now supports pledge(2), Capsicum, and Linux Landlock as sandboxing methods. - Progress indicator time stats remain accurate after pausing xz with SIGTSTP. - Ported xz and xzdec to Windows MSVC. Visual Studio 2015 or later is required. * CMake Build: - Supports pledge(2), Capsicum, and Linux Landlock sandboxing methods. - Replacement functions for getopt_long() are used on platforms that do not have it. * Enabled unaligned access by default on PowerPC64LE and on RISC-V targets that define __riscv_misaligned_fast. * Tests: - Added two new fuzz targets to OSS-Fuzz. - Implemented Continuous Integration (CI) testing using GitHub Actions. * Changed quoting style from `...' to '...' in all messages, scripts, and documentation. * Added basic Codespell support to help catch typo errors. --- Jia Tan
