2010-10-23 11:15:35 +00:00
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2011-04-12 08:46:01 +00:00
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XZ Utils Release Notes
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======================
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2024-01-26 11:00:52 +00:00
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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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2024-01-26 10:54:24 +00:00
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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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being initialized to NULL. The bug can only be triggered if
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lzma_filters_update() is called on a LZMA1 encoder, so it does
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not affect xz or any application known to us that uses liblzma.
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* xz:
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- Fixed a regression introduced in 5.4.2 that caused encoding
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in the raw format to unnecessarily fail if --suffix was not
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used. For instance, the following command no longer reports
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that --suffix must be used:
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echo foo | xz --format=raw --lzma2 | wc -c
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- Fixed an issue on MinGW-w64 builds that prevented reading
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from or writing to non-terminal character devices like NUL.
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* Added a new test.
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2023-11-01 12:18:30 +00:00
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5.4.5 (2023-11-31)
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* liblzma:
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- Use __attribute__((__no_sanitize_address__)) to avoid address
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sanitization with CRC64 CLMUL. It uses 16-byte-aligned reads
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which can extend past the bounds of the input buffer and
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inherently trigger address sanitization errors. This isn't
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a bug.
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- Fixed an assertion failure that could be triggered by a large
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unpadded_size argument. It was verified that there was no
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other bug than the assertion failure.
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- Fixed a bug that prevented building with Windows Vista
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threading when __attribute__((__constructor__)) is not
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supported.
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* xz now properly handles special files such as "con" or "nul" on
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Windows. Before this fix, the following wrote "foo" to the
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console and deleted the input file "con_xz":
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echo foo | xz > con_xz
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xz --suffix=_xz --decompress con_xz
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* Build systems:
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- Allow builds with Windows win95 threading and small mode when
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__attribute__((__constructor__)) is supported.
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- Added a new line to liblzma.pc for MSYS2 (Windows):
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Cflags.private: -DLZMA_API_STATIC
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When compiling code that will link against static liblzma,
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the LZMA_API_STATIC macro needs to be defined on Windows.
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- CMake specific changes:
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* Fixed a bug that allowed CLOCK_MONOTONIC to be used even
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if the check for it failed.
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* Fixed a bug where configuring CMake multiple times
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resulted in HAVE_CLOCK_GETTIME and HAVE_CLOCK_MONOTONIC
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not being set.
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* Fixed the build with MinGW-w64-based Clang/LLVM 17.
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llvm-windres now has more accurate GNU windres emulation
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so the GNU windres workaround from 5.4.1 is needed with
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llvm-windres version 17 too.
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* The import library on Windows is now properly named
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"liblzma.dll.a" instead of "libliblzma.dll.a"
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* Fixed a bug causing the Ninja Generator to fail on
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UNIX-like systems. This bug was introduced in 5.4.0.
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* Added a new option to disable CLMUL CRC64.
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* A module-definition (.def) file is now created when
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building liblzma.dll with MinGW-w64.
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* The pkg-config liblzma.pc file is now installed on all
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builds except when using MSVC on Windows.
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* Added large file support by default for platforms that
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need it to handle files larger than 2 GiB. This includes
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MinGW-w64, even 64-bit builds.
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* Small fixes and improvements to the tests.
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* Updated translations: Chinese (simplified) and Esperanto.
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2023-08-02 12:30:07 +00:00
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5.4.4 (2023-08-02)
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* liblzma and xzdec can now build against WASI SDK when threading
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support is disabled. xz and tests don't build yet.
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* CMake:
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- Fixed a bug preventing other projects from including liblzma
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multiple times using find_package().
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- Don't create broken symlinks in Cygwin and MSYS2 unless
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supported by the environment. This prevented building for the
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default MSYS2 environment. The problem was introduced in
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xz 5.4.0.
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* Documentation:
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- Small improvements to man pages.
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- Small improvements and typo fixes for liblzma API
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documentation.
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* Tests:
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- Added a new section to INSTALL to describe basic test usage
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and address recent questions about building the tests when
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cross compiling.
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- Small fixes and improvements to the tests.
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* Translations:
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- Fixed a mistake that caused one of the error messages to not
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be translated. This only affected versions 5.4.2 and 5.4.3.
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- Updated the Chinese (simplified), Croatian, Esperanto, German,
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Korean, Polish, Romanian, Spanish, Swedish, Ukrainian, and
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Vietnamese translations.
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- Updated the German, Korean, Romanian, and Ukrainian man page
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translations.
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2023-05-02 12:39:56 +00:00
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5.4.3 (2023-05-04)
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* All fixes from 5.2.12
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* Features in the CMake build can now be disabled as CMake cache
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variables, similar to the Autotools build.
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* Minor update to the Croatian translation.
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2023-03-18 14:10:57 +00:00
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5.4.2 (2023-03-18)
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* All fixes from 5.2.11 that were not included in 5.4.1.
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* If xz is built with support for the Capsicum sandbox but running
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in an environment that doesn't support Capsicum, xz now runs
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normally without sandboxing instead of exiting with an error.
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* liblzma:
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- Documentation was updated to improve the style, consistency,
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and completeness of the liblzma API headers.
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- The Doxygen-generated HTML documentation for the liblzma API
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header files is now included in the source release and is
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installed as part of "make install". All JavaScript is
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removed to simplify license compliance and to reduce the
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install size.
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- Fixed a minor bug in lzma_str_from_filters() that produced
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too many filters in the output string instead of reporting
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an error if the input array had more than four filters. This
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bug did not affect xz.
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* Build systems:
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- autogen.sh now invokes the doxygen tool via the new wrapper
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script doxygen/update-doxygen, unless the command line option
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--no-doxygen is used.
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- Added microlzma_encoder.c and microlzma_decoder.c to the
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VS project files for Windows and to the CMake build. These
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should have been included in 5.3.2alpha.
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* Tests:
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- Added a test to the CMake build that was forgotten in the
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previous release.
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- Added and refactored a few tests.
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* Translations:
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- Updated the Brazilian Portuguese translation.
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- Added Brazilian Portuguese man page translation.
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2023-01-11 15:58:16 +00:00
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5.4.1 (2023-01-11)
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* liblzma:
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- Fixed the return value of lzma_microlzma_encoder() if the
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LZMA options lc/lp/pb are invalid. Invalid lc/lp/pb options
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made the function return LZMA_STREAM_END without encoding
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anything instead of returning LZMA_OPTIONS_ERROR.
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- Windows / Visual Studio: Workaround a possible compiler bug
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when targeting 32-bit x86 and compiling the CLMUL version of
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the CRC64 code. The CLMUL code isn't enabled by the Windows
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project files but it is in the CMake-based builds.
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* Build systems:
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- Windows-specific CMake changes:
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* Don't try to enable CLMUL CRC64 code if _mm_set_epi64x()
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isn't available. This fixes CMake-based build with Visual
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Studio 2013.
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* Created a workaround for a build failure with windres
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from GNU binutils. It is used only when the C compiler
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is GCC (not Clang). The workaround is incompatible
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with llvm-windres, resulting in "XZx20Utils" instead
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of "XZ Utils" in the resource file, but without the
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workaround llvm-windres works correctly. See the
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comment in CMakeLists.txt for details.
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* Included the resource files in the xz and xzdec build
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rules. Building the command line tools is still
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experimental but possible with MinGW-w64.
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- Visual Studio: Added stream_decoder_mt.c to the project
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files. Now the threaded decompressor lzma_stream_decoder_mt()
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gets built. CMake-based build wasn't affected.
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- Updated windows/INSTALL-MSVC.txt to mention that CMake-based
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build is now the preferred method with Visual Studio. The
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project files will probably be removed after 5.4.x releases.
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- Changes to #defines in config.h:
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* HAVE_DECL_CLOCK_MONOTONIC was replaced by
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HAVE_CLOCK_MONOTONIC. The old macro was always defined
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in configure-generated config.h to either 0 or 1. The
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new macro is defined (to 1) only if the declaration of
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CLOCK_MONOTONIC is available. This matches the way most
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other config.h macros work and makes things simpler with
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other build systems.
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* HAVE_DECL_PROGRAM_INVOCATION_NAME was replaced by
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HAVE_PROGRAM_INVOCATION_NAME for the same reason.
|
|
|
|
|
|
|
|
|
|
* Tests:
|
|
|
|
|
|
|
|
|
|
- Fixed test script compatibility with ancient /bin/sh
|
|
|
|
|
versions. Now the five test_compress_* tests should
|
|
|
|
|
no longer fail on Solaris 10.
|
|
|
|
|
|
|
|
|
|
- Added and refactored a few tests.
|
|
|
|
|
|
|
|
|
|
* Translations:
|
|
|
|
|
|
|
|
|
|
- Updated the Catalan and Esperanto translations.
|
|
|
|
|
|
|
|
|
|
- Added Korean and Ukrainian man page translations.
|
|
|
|
|
|
|
|
|
|
|
2022-12-13 17:47:53 +00:00
|
|
|
5.4.0 (2022-12-13)
|
|
|
|
|
|
|
|
|
|
This bumps the minor version of liblzma because new features were
|
|
|
|
|
added. The API and ABI are still backward compatible with liblzma
|
|
|
|
|
5.2.x and 5.0.x.
|
|
|
|
|
|
|
|
|
|
Since 5.3.5beta:
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.2.10.
|
|
|
|
|
|
|
|
|
|
* The ARM64 filter is now stable. The xz option is now --arm64.
|
|
|
|
|
Decompression requires XZ Utils 5.4.0. In the future the ARM64
|
|
|
|
|
filter will be supported by XZ for Java, XZ Embedded (including
|
|
|
|
|
the version in Linux), LZMA SDK, and 7-Zip.
|
|
|
|
|
|
|
|
|
|
* Translations:
|
|
|
|
|
|
|
|
|
|
- Updated Catalan, Croatian, German, Romanian, and Turkish
|
|
|
|
|
translations.
|
|
|
|
|
|
|
|
|
|
- Updated German man page translations.
|
|
|
|
|
|
|
|
|
|
- Added Romanian man page translations.
|
|
|
|
|
|
|
|
|
|
Summary of new features added in the 5.3.x development releases:
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Added threaded .xz decompressor lzma_stream_decoder_mt().
|
|
|
|
|
It can use multiple threads with .xz files that have multiple
|
|
|
|
|
Blocks with size information in Block Headers. The threaded
|
|
|
|
|
encoder in xz has always created such files.
|
|
|
|
|
|
|
|
|
|
Single-threaded encoder cannot store the size information in
|
|
|
|
|
Block Headers even if one used LZMA_FULL_FLUSH to create
|
|
|
|
|
multiple Blocks, so this threaded decoder cannot use multiple
|
|
|
|
|
threads with such files.
|
|
|
|
|
|
|
|
|
|
If there are multiple Streams (concatenated .xz files), one
|
|
|
|
|
Stream will be decompressed completely before starting the
|
|
|
|
|
next Stream.
|
|
|
|
|
|
|
|
|
|
- A new decoder flag LZMA_FAIL_FAST was added. It makes the
|
|
|
|
|
threaded decompressor report errors soon instead of first
|
|
|
|
|
flushing all pending data before the error location.
|
|
|
|
|
|
|
|
|
|
- New Filter IDs:
|
|
|
|
|
* LZMA_FILTER_ARM64 is for ARM64 binaries.
|
|
|
|
|
* LZMA_FILTER_LZMA1EXT is for raw LZMA1 streams that don't
|
|
|
|
|
necessarily use the end marker.
|
|
|
|
|
|
|
|
|
|
- Added lzma_str_to_filters(), lzma_str_from_filters(), and
|
|
|
|
|
lzma_str_list_filters() to convert a preset or a filter chain
|
|
|
|
|
string to a lzma_filter[] and vice versa. These should make
|
|
|
|
|
it easier to write applications that allow users to specify
|
|
|
|
|
custom compression options.
|
|
|
|
|
|
|
|
|
|
- Added lzma_filters_free() which can be convenient for freeing
|
|
|
|
|
the filter options in a filter chain (an array of lzma_filter
|
|
|
|
|
structures).
|
|
|
|
|
|
|
|
|
|
- lzma_file_info_decoder() to makes it a little easier to get
|
|
|
|
|
the Index field from .xz files. This helps in getting the
|
|
|
|
|
uncompressed file size but an easy-to-use random access
|
|
|
|
|
API is still missing which has existed in XZ for Java for
|
|
|
|
|
a long time.
|
|
|
|
|
|
|
|
|
|
- Added lzma_microlzma_encoder() and lzma_microlzma_decoder().
|
|
|
|
|
It is used by erofs-utils and may be used by others too.
|
|
|
|
|
|
|
|
|
|
The MicroLZMA format is a raw LZMA stream (without end marker)
|
|
|
|
|
whose first byte (always 0x00) has been replaced with
|
|
|
|
|
bitwise-negation of the LZMA properties (lc/lp/pb). It was
|
|
|
|
|
created for use in EROFS but may be used in other contexts
|
|
|
|
|
as well where it is important to avoid wasting bytes for
|
|
|
|
|
stream headers or footers. The format is also supported by
|
|
|
|
|
XZ Embedded (the XZ Embedded version in Linux got MicroLZMA
|
|
|
|
|
support in Linux 5.16).
|
|
|
|
|
|
|
|
|
|
The MicroLZMA encoder API in liblzma can compress into a
|
|
|
|
|
fixed-sized output buffer so that as much data is compressed
|
|
|
|
|
as can be fit into the buffer while still creating a valid
|
|
|
|
|
MicroLZMA stream. This is needed for EROFS.
|
|
|
|
|
|
|
|
|
|
- Added lzma_lzip_decoder() to decompress the .lz (lzip) file
|
|
|
|
|
format version 0 and the original unextended version 1 files.
|
|
|
|
|
Also lzma_auto_decoder() supports .lz files.
|
|
|
|
|
|
|
|
|
|
- lzma_filters_update() can now be used with the multi-threaded
|
|
|
|
|
encoder (lzma_stream_encoder_mt()) to change the filter chain
|
|
|
|
|
after LZMA_FULL_BARRIER or LZMA_FULL_FLUSH.
|
|
|
|
|
|
|
|
|
|
- In lzma_options_lzma, allow nice_len = 2 and 3 with the match
|
|
|
|
|
finders that require at least 3 or 4. Now it is internally
|
|
|
|
|
rounded up if needed.
|
|
|
|
|
|
|
|
|
|
- CLMUL-based CRC64 on x86-64 and E2K with runtime processor
|
|
|
|
|
detection. On 32-bit x86 it currently isn't available unless
|
|
|
|
|
--disable-assembler is used which can make the non-CLMUL
|
|
|
|
|
CRC64 slower; this might be fixed in the future.
|
|
|
|
|
|
|
|
|
|
- Building with --disable-threads --enable-small
|
|
|
|
|
is now thread-safe if the compiler supports
|
|
|
|
|
__attribute__((__constructor__)).
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- Using -T0 (--threads=0) will now use multi-threaded encoder
|
|
|
|
|
even on a single-core system. This is to ensure that output
|
|
|
|
|
from the same xz binary is identical on both single-core and
|
|
|
|
|
multi-core systems.
|
|
|
|
|
|
|
|
|
|
- --threads=+1 or -T+1 is now a way to put xz into
|
|
|
|
|
multi-threaded mode while using only one worker thread.
|
|
|
|
|
The + is ignored if the number is not 1.
|
|
|
|
|
|
|
|
|
|
- A default soft memory usage limit is now used for compression
|
|
|
|
|
when -T0 is used and no explicit limit has been specified.
|
|
|
|
|
This soft limit is used to restrict the number of threads
|
|
|
|
|
but if the limit is exceeded with even one thread then xz
|
|
|
|
|
will continue with one thread using the multi-threaded
|
|
|
|
|
encoder and this limit is ignored. If the number of threads
|
|
|
|
|
is specified manually then no default limit will be used;
|
|
|
|
|
this affects only -T0.
|
|
|
|
|
|
|
|
|
|
This change helps on systems that have very many cores and
|
|
|
|
|
using all of them for xz makes no sense. Previously xz -T0
|
|
|
|
|
could run out of memory on such systems because it attempted
|
|
|
|
|
to reserve memory for too many threads.
|
|
|
|
|
|
|
|
|
|
This also helps with 32-bit builds which don't have a large
|
|
|
|
|
amount of address space that would be required for many
|
|
|
|
|
threads. The default soft limit for -T0 is at most 1400 MiB
|
|
|
|
|
on all 32-bit platforms.
|
|
|
|
|
|
|
|
|
|
- Previously a low value in --memlimit-compress wouldn't cause
|
|
|
|
|
xz to switch from multi-threaded mode to single-threaded mode
|
|
|
|
|
if the limit cannot otherwise be met; xz failed instead. Now
|
|
|
|
|
xz can switch to single-threaded mode and then, if needed,
|
|
|
|
|
scale down the LZMA2 dictionary size too just like it already
|
|
|
|
|
did when it was started in single-threaded mode.
|
|
|
|
|
|
|
|
|
|
- The option --no-adjust no longer prevents xz from scaling down
|
|
|
|
|
the number of threads as that doesn't affect the compressed
|
|
|
|
|
output (only performance). Now --no-adjust only prevents
|
|
|
|
|
adjustments that affect compressed output, that is, with
|
|
|
|
|
--no-adjust xz won't switch from multi-threaded mode to
|
|
|
|
|
single-threaded mode and won't scale down the LZMA2
|
|
|
|
|
dictionary size.
|
|
|
|
|
|
|
|
|
|
- Added a new option --memlimit-mt-decompress=LIMIT. This is
|
|
|
|
|
used to limit the number of decompressor threads (possibly
|
|
|
|
|
falling back to single-threaded mode) but it will never make
|
|
|
|
|
xz refuse to decompress a file. This has a system-specific
|
|
|
|
|
default value because without any limit xz could end up
|
|
|
|
|
allocating memory for the whole compressed input file, the
|
|
|
|
|
whole uncompressed output file, multiple thread-specific
|
|
|
|
|
decompressor instances and so on. Basically xz could
|
|
|
|
|
attempt to use an insane amount of memory even with fairly
|
|
|
|
|
common files. The system-specific default value is currently
|
|
|
|
|
the same as the one used for compression with -T0.
|
|
|
|
|
|
|
|
|
|
The new option works together with the existing option
|
|
|
|
|
--memlimit-decompress=LIMIT. The old option sets a hard limit
|
|
|
|
|
that must not be exceeded (xz will refuse to decompress)
|
|
|
|
|
while the new option only restricts the number of threads.
|
|
|
|
|
If the limit set with --memlimit-mt-decompress is greater
|
|
|
|
|
than the limit set with --memlimit-compress, then the latter
|
|
|
|
|
value is used also for --memlimit-mt-decompress.
|
|
|
|
|
|
|
|
|
|
- Added new information to the output of xz --info-memory and
|
|
|
|
|
new fields to the output of xz --robot --info-memory.
|
|
|
|
|
|
|
|
|
|
- In --lzma2=nice=NUMBER allow 2 and 3 with all match finders
|
|
|
|
|
now that liblzma handles it.
|
|
|
|
|
|
|
|
|
|
- Don't mention endianness for ARM and ARM-Thumb filters in
|
|
|
|
|
--long-help. The filters only work for little endian
|
|
|
|
|
instruction encoding but modern ARM processors using
|
|
|
|
|
big endian data access still use little endian
|
|
|
|
|
instruction encoding. So the help text was misleading.
|
|
|
|
|
In contrast, the PowerPC filter is only for big endian
|
|
|
|
|
32/64-bit PowerPC code. Little endian PowerPC would need
|
|
|
|
|
a separate filter.
|
|
|
|
|
|
|
|
|
|
- Added decompression support for the .lz (lzip) file format
|
|
|
|
|
version 0 and the original unextended version 1. It is
|
|
|
|
|
autodetected by default. See also the option --format on
|
|
|
|
|
the xz man page.
|
|
|
|
|
|
|
|
|
|
- Sandboxing enabled by default:
|
|
|
|
|
* Capsicum (FreeBSD)
|
|
|
|
|
* pledge(2) (OpenBSD)
|
|
|
|
|
|
|
|
|
|
* Scripts now support the .lz format using xz.
|
|
|
|
|
|
|
|
|
|
* A few new tests were added.
|
|
|
|
|
|
|
|
|
|
* The liblzma-specific tests are now supported in CMake-based
|
|
|
|
|
builds too ("make test").
|
|
|
|
|
|
|
|
|
|
|
2022-12-01 18:57:26 +00:00
|
|
|
5.3.5beta (2022-12-01)
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.2.9.
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Added new LZMA_FILTER_LZMA1EXT for raw encoder and decoder to
|
|
|
|
|
handle raw LZMA1 streams that don't have end of payload marker
|
|
|
|
|
(EOPM) alias end of stream (EOS) marker. It can be used in
|
|
|
|
|
filter chains, for example, with the x86 BCJ filter.
|
|
|
|
|
|
|
|
|
|
- Added lzma_str_to_filters(), lzma_str_from_filters(), and
|
|
|
|
|
lzma_str_list_filters() to make it easier for applications
|
|
|
|
|
to get custom compression options from a user and convert
|
|
|
|
|
it to an array of lzma_filter structures.
|
|
|
|
|
|
|
|
|
|
- Added lzma_filters_free().
|
|
|
|
|
|
|
|
|
|
- lzma_filters_update() can now be used with the multi-threaded
|
|
|
|
|
encoder (lzma_stream_encoder_mt()) to change the filter chain
|
|
|
|
|
after LZMA_FULL_BARRIER or LZMA_FULL_FLUSH.
|
|
|
|
|
|
|
|
|
|
- In lzma_options_lzma, allow nice_len = 2 and 3 with the match
|
|
|
|
|
finders that require at least 3 or 4. Now it is internally
|
|
|
|
|
rounded up if needed.
|
|
|
|
|
|
|
|
|
|
- ARM64 filter was modified. It is still experimental.
|
|
|
|
|
|
|
|
|
|
- Fixed LTO build with Clang if -fgnuc-version=10 or similar
|
|
|
|
|
was used to make Clang look like GCC >= 10. Now it uses
|
|
|
|
|
__has_attribute(__symver__) which should be reliable.
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- --threads=+1 or -T+1 is now a way to put xz into multi-threaded
|
|
|
|
|
mode while using only one worker thread.
|
|
|
|
|
|
|
|
|
|
- In --lzma2=nice=NUMBER allow 2 and 3 with all match finders
|
|
|
|
|
now that liblzma handles it.
|
|
|
|
|
|
|
|
|
|
* Updated translations: Chinese (simplified), Korean, and Turkish.
|
|
|
|
|
|
|
|
|
|
|
2022-11-15 08:54:40 +00:00
|
|
|
5.3.4alpha (2022-11-15)
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.2.7 and 5.2.8.
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Minor improvements to the threaded decoder.
|
|
|
|
|
|
|
|
|
|
- Added CRC64 implementation that uses SSSE3, SSE4.1, and CLMUL
|
|
|
|
|
instructions on 32/64-bit x86 and E2K. On 32-bit x86 it's
|
|
|
|
|
not enabled unless --disable-assembler is used but then
|
|
|
|
|
the non-CLMUL code might be slower. Processor support is
|
|
|
|
|
detected at runtime so this is built by default on x86-64
|
|
|
|
|
and E2K. On these platforms, if compiler flags indicate
|
|
|
|
|
unconditional CLMUL support (-msse4.1 -mpclmul) then the
|
|
|
|
|
generic version is not built, making liblzma 8-9 KiB smaller
|
|
|
|
|
compared to having both versions included.
|
|
|
|
|
|
|
|
|
|
With extremely compressible files this can make decompression
|
|
|
|
|
up to twice as fast but with typical files 5 % improvement
|
|
|
|
|
is a more realistic expectation.
|
|
|
|
|
|
|
|
|
|
The CLMUL version is slower than the generic version with
|
|
|
|
|
tiny inputs (especially at 1-8 bytes per call, but up to
|
|
|
|
|
16 bytes). In normal use in xz this doesn't matter at all.
|
|
|
|
|
|
|
|
|
|
- Added an experimental ARM64 filter. This is *not* the final
|
|
|
|
|
version! Files created with this experimental version won't
|
|
|
|
|
be supported in the future versions! The filter design is
|
|
|
|
|
a compromise where improving one use case makes some other
|
|
|
|
|
cases worse.
|
|
|
|
|
|
|
|
|
|
- Added decompression support for the .lz (lzip) file format
|
|
|
|
|
version 0 and the original unextended version 1. See the
|
|
|
|
|
API docs of lzma_lzip_decoder() for details. Also
|
|
|
|
|
lzma_auto_decoder() supports .lz files.
|
|
|
|
|
|
|
|
|
|
- Building with --disable-threads --enable-small
|
|
|
|
|
is now thread-safe if the compiler supports
|
|
|
|
|
__attribute__((__constructor__))
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- Added support for OpenBSD's pledge(2) as a sandboxing method.
|
|
|
|
|
|
|
|
|
|
- Don't mention endianness for ARM and ARM-Thumb filters in
|
|
|
|
|
--long-help. The filters only work for little endian
|
|
|
|
|
instruction encoding but modern ARM processors using
|
|
|
|
|
big endian data access still use little endian
|
|
|
|
|
instruction encoding. So the help text was misleading.
|
|
|
|
|
In contrast, the PowerPC filter is only for big endian
|
|
|
|
|
32/64-bit PowerPC code. Little endian PowerPC would need
|
|
|
|
|
a separate filter.
|
|
|
|
|
|
|
|
|
|
- Added --experimental-arm64. This will be renamed once the
|
|
|
|
|
filter is finished. Files created with this experimental
|
|
|
|
|
filter will not be supported in the future!
|
|
|
|
|
|
|
|
|
|
- Added new fields to the output of xz --robot --info-memory.
|
|
|
|
|
|
|
|
|
|
- Added decompression support for the .lz (lzip) file format
|
|
|
|
|
version 0 and the original unextended version 1. It is
|
|
|
|
|
autodetected by default. See also the option --format on
|
|
|
|
|
the xz man page.
|
|
|
|
|
|
|
|
|
|
* Scripts now support the .lz format using xz.
|
|
|
|
|
|
|
|
|
|
* Build systems:
|
|
|
|
|
|
|
|
|
|
- New #defines in config.h: HAVE_ENCODER_ARM64,
|
|
|
|
|
HAVE_DECODER_ARM64, HAVE_LZIP_DECODER, HAVE_CPUID_H,
|
|
|
|
|
HAVE_FUNC_ATTRIBUTE_CONSTRUCTOR, HAVE_USABLE_CLMUL
|
|
|
|
|
|
|
|
|
|
- New configure options: --disable-clmul-crc,
|
|
|
|
|
--disable-microlzma, --disable-lzip-decoder, and
|
|
|
|
|
'pledge' is now an option in --enable-sandbox (but
|
|
|
|
|
it's autodetected by default anyway).
|
|
|
|
|
|
|
|
|
|
- INSTALL was updated to document the new configure options.
|
|
|
|
|
|
|
|
|
|
- PACKAGERS now lists also --disable-microlzma and
|
|
|
|
|
--disable-lzip-decoder as configure options that must
|
|
|
|
|
not be used in builds for non-embedded use.
|
|
|
|
|
|
|
|
|
|
* Tests:
|
|
|
|
|
|
|
|
|
|
- Fix some of the tests so that they skip instead of fail if
|
|
|
|
|
certain features have been disabled with configure options.
|
|
|
|
|
It's still not perfect.
|
|
|
|
|
|
|
|
|
|
- Other improvements to tests.
|
|
|
|
|
|
|
|
|
|
* Updated translations: Croatian, Finnish, Hungarian, Polish,
|
|
|
|
|
Romanian, Spanish, Swedish, and Ukrainian.
|
|
|
|
|
|
|
|
|
|
|
2022-08-22 15:13:56 +00:00
|
|
|
5.3.3alpha (2022-08-22)
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.2.6.
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Fixed 32-bit build.
|
|
|
|
|
|
|
|
|
|
- Added threaded .xz decompressor lzma_stream_decoder_mt().
|
|
|
|
|
It can use multiple threads with .xz files that have multiple
|
|
|
|
|
Blocks with size information in Block Headers. The threaded
|
|
|
|
|
encoder in xz has always created such files.
|
|
|
|
|
|
|
|
|
|
Single-threaded encoder cannot store the size information in
|
|
|
|
|
Block Headers even if one used LZMA_FULL_FLUSH to create
|
|
|
|
|
multiple Blocks, so this threaded decoder cannot use multiple
|
|
|
|
|
threads with such files.
|
|
|
|
|
|
|
|
|
|
If there are multiple Streams (concatenated .xz files), one
|
|
|
|
|
Stream will be decompressed completely before starting the
|
|
|
|
|
next Stream.
|
|
|
|
|
|
|
|
|
|
- A new decoder flag LZMA_FAIL_FAST was added. It makes the
|
|
|
|
|
threaded decompressor report errors soon instead of first
|
|
|
|
|
flushing all pending data before the error location.
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- Using -T0 (--threads=0) will now use multi-threaded encoder
|
|
|
|
|
even on a single-core system. This is to ensure that output
|
|
|
|
|
from the same xz binary is identical on both single-core and
|
|
|
|
|
multi-core systems.
|
|
|
|
|
|
|
|
|
|
- A default soft memory usage limit is now used for compression
|
|
|
|
|
when -T0 is used and no explicit limit has been specified.
|
|
|
|
|
This soft limit is used to restrict the number of threads
|
|
|
|
|
but if the limit is exceeded with even one thread then xz
|
|
|
|
|
will continue with one thread using the multi-threaded
|
|
|
|
|
encoder and this limit is ignored. If the number of threads
|
|
|
|
|
is specified manually then no default limit will be used;
|
|
|
|
|
this affects only -T0.
|
|
|
|
|
|
|
|
|
|
This change helps on systems that have very many cores and
|
|
|
|
|
using all of them for xz makes no sense. Previously xz -T0
|
|
|
|
|
could run out of memory on such systems because it attempted
|
|
|
|
|
to reserve memory for too many threads.
|
|
|
|
|
|
|
|
|
|
This also helps with 32-bit builds which don't have a large
|
|
|
|
|
amount of address space that would be required for many
|
|
|
|
|
threads. The default limit is 1400 MiB on all 32-bit
|
|
|
|
|
platforms with -T0.
|
|
|
|
|
|
|
|
|
|
Now xz -T0 should just work. It might use too few threads
|
|
|
|
|
in some cases but at least it shouldn't easily run out of
|
|
|
|
|
memory. It's possible that this will be tweaked before 5.4.0.
|
|
|
|
|
|
|
|
|
|
- Changes to --memlimit-compress and --no-adjust:
|
|
|
|
|
|
|
|
|
|
In single-threaded mode, --memlimit-compress can make xz
|
|
|
|
|
scale down the LZMA2 dictionary size to meet the memory usage
|
|
|
|
|
limit. This obviously affects the compressed output. However,
|
|
|
|
|
if xz was in threaded mode, --memlimit-compress could make xz
|
|
|
|
|
reduce the number of threads but it wouldn't make xz switch
|
|
|
|
|
from multi-threaded mode to single-threaded mode or scale
|
|
|
|
|
down the LZMA2 dictionary size. This seemed illogical.
|
|
|
|
|
|
|
|
|
|
Now --memlimit-compress can make xz switch to single-threaded
|
|
|
|
|
mode if one thread in multi-threaded mode uses too much
|
|
|
|
|
memory. If memory usage is still too high, then the LZMA2
|
|
|
|
|
dictionary size can be scaled down too.
|
|
|
|
|
|
|
|
|
|
The option --no-adjust was also changed so that it no longer
|
|
|
|
|
prevents xz from scaling down the number of threads as that
|
|
|
|
|
doesn't affect compressed output (only performance). After
|
|
|
|
|
this commit --no-adjust only prevents adjustments that affect
|
|
|
|
|
compressed output, that is, with --no-adjust xz won't switch
|
|
|
|
|
from multithreaded mode to single-threaded mode and won't
|
|
|
|
|
scale down the LZMA2 dictionary size.
|
|
|
|
|
|
2022-12-13 15:41:20 +00:00
|
|
|
- Added a new option --memlimit-mt-decompress=LIMIT. This is
|
2022-08-22 15:13:56 +00:00
|
|
|
used to limit the number of decompressor threads (possibly
|
|
|
|
|
falling back to single-threaded mode) but it will never make
|
|
|
|
|
xz refuse to decompress a file. This has a system-specific
|
|
|
|
|
default value because without any limit xz could end up
|
|
|
|
|
allocating memory for the whole compressed input file, the
|
|
|
|
|
whole uncompressed output file, multiple thread-specific
|
|
|
|
|
decompressor instances and so on. Basically xz could
|
|
|
|
|
attempt to use an insane amount of memory even with fairly
|
|
|
|
|
common files.
|
|
|
|
|
|
|
|
|
|
The new option works together with the existing option
|
|
|
|
|
--memlimit-decompress=LIMIT. The old option sets a hard limit
|
|
|
|
|
that must not be exceeded (xz will refuse to decompress)
|
|
|
|
|
while the new option only restricts the number of threads.
|
|
|
|
|
If the limit set with --memlimit-mt-decompress is greater
|
|
|
|
|
than the limit set with --memlimit-compress, then the latter
|
|
|
|
|
value is used also for --memlimit-mt-decompress.
|
|
|
|
|
|
|
|
|
|
* Tests:
|
|
|
|
|
|
|
|
|
|
- Added a few more tests.
|
|
|
|
|
|
|
|
|
|
- Added tests/code_coverage.sh to create a code coverage report
|
|
|
|
|
of the tests.
|
|
|
|
|
|
|
|
|
|
* Build systems:
|
|
|
|
|
|
|
|
|
|
- Automake's parallel test harness is now used to make tests
|
|
|
|
|
finish faster.
|
|
|
|
|
|
|
|
|
|
- Added the CMake files to the distribution tarball. These were
|
|
|
|
|
supposed to be in 5.2.5 already.
|
|
|
|
|
|
|
|
|
|
- Added liblzma tests to the CMake build.
|
|
|
|
|
|
|
|
|
|
- Windows: Fix building of liblzma.dll with the included
|
|
|
|
|
Visual Studio project files.
|
|
|
|
|
|
|
|
|
|
|
2021-10-28 19:59:52 +00:00
|
|
|
5.3.2alpha (2021-10-28)
|
|
|
|
|
|
|
|
|
|
This release was made on short notice so that recent erofs-utils can
|
|
|
|
|
be built with LZMA support without needing a snapshot from xz.git.
|
|
|
|
|
Thus many pending things were not included, not even updated
|
|
|
|
|
translations (which would need to be updated for the new --list
|
|
|
|
|
strings anyway).
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.2.5.
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- When copying metadata from the source file to the destination
|
|
|
|
|
file, don't try to set the group (GID) if it is already set
|
|
|
|
|
correctly. This avoids a failure on OpenBSD (and possibly on
|
|
|
|
|
a few other OSes) where files may get created so that their
|
|
|
|
|
group doesn't belong to the user, and fchown(2) can fail even
|
|
|
|
|
if it needs to do nothing.
|
|
|
|
|
|
|
|
|
|
- The --keep option now accepts symlinks, hardlinks, and
|
|
|
|
|
setuid, setgid, and sticky files. Previously this required
|
|
|
|
|
using --force.
|
|
|
|
|
|
|
|
|
|
- Split the long strings used in --list and --info-memory modes
|
|
|
|
|
to make them much easier for translators.
|
|
|
|
|
|
|
|
|
|
- If built with sandbox support and enabling the sandbox fails,
|
|
|
|
|
xz will now immediately exit with exit status of 1. Previously
|
|
|
|
|
it would only display a warning if -vv was used.
|
|
|
|
|
|
|
|
|
|
- Cap --memlimit-compress to 2000 MiB on MIPS32 because on
|
|
|
|
|
MIPS32 userspace processes are limited to 2 GiB of address
|
|
|
|
|
space.
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Added lzma_microlzma_encoder() and lzma_microlzma_decoder().
|
|
|
|
|
The API is in lzma/container.h.
|
|
|
|
|
|
|
|
|
|
The MicroLZMA format is a raw LZMA stream (without end marker)
|
|
|
|
|
whose first byte (always 0x00) has been replaced with
|
|
|
|
|
bitwise-negation of the LZMA properties (lc/lp/pb). It was
|
|
|
|
|
created for use in EROFS but may be used in other contexts
|
|
|
|
|
as well where it is important to avoid wasting bytes for
|
|
|
|
|
stream headers or footers. The format is also supported by
|
|
|
|
|
XZ Embedded.
|
|
|
|
|
|
|
|
|
|
The MicroLZMA encoder API in liblzma can compress into a
|
|
|
|
|
fixed-sized output buffer so that as much data is compressed
|
|
|
|
|
as can be fit into the buffer while still creating a valid
|
|
|
|
|
MicroLZMA stream. This is needed for EROFS.
|
|
|
|
|
|
|
|
|
|
- Added fuzzing support.
|
|
|
|
|
|
|
|
|
|
- Support Intel Control-flow Enforcement Technology (CET) in
|
|
|
|
|
32-bit x86 assembly files.
|
|
|
|
|
|
|
|
|
|
- Visual Studio: Use non-standard _MSVC_LANG to detect C++
|
|
|
|
|
standard version in the lzma.h API header. It's used to
|
|
|
|
|
detect when "noexcept" can be used.
|
|
|
|
|
|
|
|
|
|
* Scripts:
|
|
|
|
|
|
|
|
|
|
- Fix exit status of xzdiff/xzcmp. Exit status could be 2 when
|
|
|
|
|
the correct value is 1.
|
|
|
|
|
|
|
|
|
|
- Fix exit status of xzgrep.
|
|
|
|
|
|
|
|
|
|
- Detect corrupt .bz2 files in xzgrep.
|
|
|
|
|
|
|
|
|
|
- Add zstd support to xzgrep and xzdiff/xzcmp.
|
|
|
|
|
|
|
|
|
|
- Fix less(1) version detection in xzless. It failed if the
|
|
|
|
|
version number from "less -V" contained a dot.
|
|
|
|
|
|
|
|
|
|
* Fix typos and technical issues in man pages.
|
|
|
|
|
|
|
|
|
|
* Build systems:
|
|
|
|
|
|
|
|
|
|
- Windows: Fix building of resource files when config.h isn't
|
|
|
|
|
used. CMake + Visual Studio can now build liblzma.dll.
|
|
|
|
|
|
|
|
|
|
- Various fixes to the CMake support. It might still need a few
|
|
|
|
|
more fixes even for liblzma-only builds.
|
|
|
|
|
|
|
|
|
|
|
2018-04-29 15:33:10 +00:00
|
|
|
5.3.1alpha (2018-04-29)
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.2.4.
|
|
|
|
|
|
|
|
|
|
* Add lzma_file_info_decoder() into liblzma and use it in xz to
|
|
|
|
|
implement the --list feature.
|
|
|
|
|
|
|
|
|
|
* Capsicum sandbox support is enabled by default where available
|
|
|
|
|
(FreeBSD >= 10).
|
|
|
|
|
|
|
|
|
|
|
2023-05-02 12:39:37 +00:00
|
|
|
5.2.12 (2023-05-04)
|
|
|
|
|
|
|
|
|
|
* Fixed a build system bug that prevented building liblzma as a
|
|
|
|
|
shared library when configured with --disable-threads. This bug
|
|
|
|
|
affected releases 5.2.6 to 5.2.11 and 5.4.0 to 5.4.2.
|
|
|
|
|
|
|
|
|
|
* Include <intrin.h> for Windows intrinsic functions where they are
|
|
|
|
|
needed. This fixed a bug that prevented building liblzma using
|
|
|
|
|
clang-cl on Windows.
|
|
|
|
|
|
|
|
|
|
* Minor update to the Croatian translation. The small change
|
|
|
|
|
applies to a string in both 5.2 and 5.4 branches.
|
|
|
|
|
|
|
|
|
|
|
2023-03-18 14:10:12 +00:00
|
|
|
5.2.11 (2023-03-18)
|
|
|
|
|
|
|
|
|
|
* Removed all possible cases of null pointer + 0. It is undefined
|
|
|
|
|
behavior in C99 and C17. This was detected by a sanitizer and had
|
|
|
|
|
not caused any known issues.
|
|
|
|
|
|
|
|
|
|
* Build systems:
|
|
|
|
|
|
|
|
|
|
- Added a workaround for building with GCC on MicroBlaze Linux.
|
|
|
|
|
GCC 12 on MicroBlaze doesn't support the __symver__ attribute
|
|
|
|
|
even though __has_attribute(__symver__) returns true. The
|
|
|
|
|
build is now done without the extra RHEL/CentOS 7 symbols
|
|
|
|
|
that were added in XZ Utils 5.2.7. The workaround only
|
|
|
|
|
applies to the Autotools build (not CMake).
|
|
|
|
|
|
|
|
|
|
- CMake: Ensure that the C compiler language is set to C99 or
|
|
|
|
|
a newer standard.
|
|
|
|
|
|
|
|
|
|
- CMake changes from XZ Utils 5.4.1:
|
|
|
|
|
|
|
|
|
|
* Added a workaround for a build failure with
|
|
|
|
|
windres from GNU binutils.
|
|
|
|
|
|
|
|
|
|
* Included the Windows resource files in the xz
|
|
|
|
|
and xzdec build rules.
|
|
|
|
|
|
|
|
|
|
|
2022-12-13 15:41:03 +00:00
|
|
|
5.2.10 (2022-12-13)
|
|
|
|
|
|
|
|
|
|
* xz: Don't modify argv[] when parsing the --memlimit* and
|
|
|
|
|
--block-list command line options. This fixes confusing
|
|
|
|
|
arguments in process listing (like "ps auxf").
|
|
|
|
|
|
|
|
|
|
* GNU/Linux only: Use __has_attribute(__symver__) to detect if
|
|
|
|
|
that attribute is supported. This fixes build on Mandriva where
|
|
|
|
|
Clang is patched to define __GNUC__ to 11 by default (instead
|
|
|
|
|
of 4 as used by Clang upstream).
|
|
|
|
|
|
|
|
|
|
|
2022-11-30 16:55:03 +00:00
|
|
|
5.2.9 (2022-11-30)
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Fixed an infinite loop in LZMA encoder initialization
|
|
|
|
|
if dict_size >= 2 GiB. (The encoder only supports up
|
|
|
|
|
to 1536 MiB.)
|
|
|
|
|
|
|
|
|
|
- Fixed two cases of invalid free() that can happen if
|
|
|
|
|
a tiny allocation fails in encoder re-initialization
|
|
|
|
|
or in lzma_filters_update(). These bugs had some
|
|
|
|
|
similarities with the bug fixed in 5.2.7.
|
|
|
|
|
|
|
|
|
|
- Fixed lzma_block_encoder() not allowing the use of
|
|
|
|
|
LZMA_SYNC_FLUSH with lzma_code() even though it was
|
|
|
|
|
documented to be supported. The sync-flush code in
|
|
|
|
|
the Block encoder was already used internally via
|
|
|
|
|
lzma_stream_encoder(), so this was just a missing flag
|
|
|
|
|
in the lzma_block_encoder() API function.
|
|
|
|
|
|
|
|
|
|
- GNU/Linux only: Don't put symbol versions into static
|
|
|
|
|
liblzma as it breaks things in some cases (and even if
|
|
|
|
|
it didn't break anything, symbol versions in static
|
|
|
|
|
libraries are useless anyway). The downside of the fix
|
|
|
|
|
is that if the configure options --with-pic or --without-pic
|
|
|
|
|
are used then it's not possible to build both shared and
|
|
|
|
|
static liblzma at the same time on GNU/Linux anymore;
|
|
|
|
|
with those options --disable-static or --disable-shared
|
|
|
|
|
must be used too.
|
|
|
|
|
|
|
|
|
|
* New email address for bug reports is <xz@tukaani.org> which
|
|
|
|
|
forwards messages to Lasse Collin and Jia Tan.
|
|
|
|
|
|
|
|
|
|
|
2022-11-15 08:54:08 +00:00
|
|
|
5.2.8 (2022-11-13)
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- If xz cannot remove an input file when it should, this
|
|
|
|
|
is now treated as a warning (exit status 2) instead of
|
|
|
|
|
an error (exit status 1). This matches GNU gzip and it
|
|
|
|
|
is more logical as at that point the output file has
|
|
|
|
|
already been successfully closed.
|
|
|
|
|
|
|
|
|
|
- Fix handling of .xz files with an unsupported check type.
|
|
|
|
|
Previously such printed a warning message but then xz
|
|
|
|
|
behaved as if an error had occurred (didn't decompress,
|
|
|
|
|
exit status 1). Now a warning is printed, decompression
|
|
|
|
|
is done anyway, and exit status is 2. This used to work
|
|
|
|
|
slightly before 5.0.0. In practice this bug matters only
|
|
|
|
|
if xz has been built with some check types disabled. As
|
|
|
|
|
instructed in PACKAGERS, such builds should be done in
|
|
|
|
|
special situations only.
|
|
|
|
|
|
|
|
|
|
- Fix "xz -dc --single-stream tests/files/good-0-empty.xz"
|
|
|
|
|
which failed with "Internal error (bug)". That is,
|
|
|
|
|
--single-stream was broken if the first .xz stream in
|
|
|
|
|
the input file didn't contain any uncompressed data.
|
|
|
|
|
|
|
|
|
|
- Fix displaying file sizes in the progress indicator when
|
|
|
|
|
working in passthru mode and there are multiple input files.
|
|
|
|
|
Just like "gzip -cdf", "xz -cdf" works like "cat" when the
|
|
|
|
|
input file isn't a supported compressed file format. In
|
|
|
|
|
this case the file size counters weren't reset between
|
|
|
|
|
files so with multiple input files the progress indicator
|
|
|
|
|
displayed an incorrect (too large) value.
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- API docs in lzma/container.h:
|
|
|
|
|
* Update the list of decoder flags in the decoder
|
|
|
|
|
function docs.
|
|
|
|
|
* Explain LZMA_CONCATENATED behavior with .lzma files
|
|
|
|
|
in lzma_auto_decoder() docs.
|
|
|
|
|
|
|
|
|
|
- OpenBSD: Use HW_NCPUONLINE to detect the number of
|
|
|
|
|
available hardware threads in lzma_physmem().
|
|
|
|
|
|
|
|
|
|
- Fix use of wrong macro to detect x86 SSE2 support.
|
|
|
|
|
__SSE2_MATH__ was used with GCC/Clang but the correct
|
|
|
|
|
one is __SSE2__. The first one means that SSE2 is used
|
|
|
|
|
for floating point math which is irrelevant here.
|
|
|
|
|
The affected SSE2 code isn't used on x86-64 so this affects
|
|
|
|
|
only 32-bit x86 builds that use -msse2 without -mfpmath=sse
|
|
|
|
|
(there is no runtime detection for SSE2). It improves LZMA
|
|
|
|
|
compression speed (not decompression).
|
|
|
|
|
|
|
|
|
|
- Fix the build with Intel C compiler 2021 (ICC, not ICX)
|
|
|
|
|
on Linux. It defines __GNUC__ to 10 but doesn't support
|
|
|
|
|
the __symver__ attribute introduced in GCC 10.
|
|
|
|
|
|
|
|
|
|
* Scripts: Ignore warnings from xz by using --quiet --no-warn.
|
|
|
|
|
This is needed if the input .xz files use an unsupported
|
|
|
|
|
check type.
|
|
|
|
|
|
|
|
|
|
* Translations:
|
|
|
|
|
|
|
|
|
|
- Updated Croatian and Turkish translations.
|
|
|
|
|
|
|
|
|
|
- One new translations wasn't included because it needed
|
|
|
|
|
technical fixes. It will be in upcoming 5.4.0. No new
|
|
|
|
|
translations will be added to the 5.2.x branch anymore.
|
|
|
|
|
|
|
|
|
|
- Renamed the French man page translation file from
|
|
|
|
|
fr_FR.po to fr.po and thus also its install directory
|
|
|
|
|
(like /usr/share/man/fr_FR -> .../fr).
|
|
|
|
|
|
|
|
|
|
- Man page translations for upcoming 5.4.0 are now handled
|
|
|
|
|
in the Translation Project.
|
|
|
|
|
|
|
|
|
|
* Update doc/faq.txt a little so it's less out-of-date.
|
|
|
|
|
|
|
|
|
|
|
2022-11-11 11:27:06 +00:00
|
|
|
5.2.7 (2022-09-30)
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Made lzma_filters_copy() to never modify the destination
|
|
|
|
|
array if an error occurs. lzma_stream_encoder() and
|
|
|
|
|
lzma_stream_encoder_mt() already assumed this. Before this
|
|
|
|
|
change, if a tiny memory allocation in lzma_filters_copy()
|
|
|
|
|
failed it would lead to a crash (invalid free() or invalid
|
|
|
|
|
memory reads) in the cleanup paths of these two encoder
|
|
|
|
|
initialization functions.
|
|
|
|
|
|
|
|
|
|
- Added missing integer overflow check to lzma_index_append().
|
|
|
|
|
This affects xz --list and other applications that decode
|
|
|
|
|
the Index field from .xz files using lzma_index_decoder().
|
|
|
|
|
Normal decompression of .xz files doesn't call this code
|
|
|
|
|
and thus most applications using liblzma aren't affected
|
|
|
|
|
by this bug.
|
|
|
|
|
|
|
|
|
|
- Single-threaded .xz decoder (lzma_stream_decoder()): If
|
|
|
|
|
lzma_code() returns LZMA_MEMLIMIT_ERROR it is now possible
|
|
|
|
|
to use lzma_memlimit_set() to increase the limit and continue
|
|
|
|
|
decoding. This was supposed to work from the beginning
|
|
|
|
|
but there was a bug. With other decoders (.lzma or
|
|
|
|
|
threaded .xz decoder) this already worked correctly.
|
|
|
|
|
|
|
|
|
|
- Fixed accumulation of integrity check type statistics in
|
|
|
|
|
lzma_index_cat(). This bug made lzma_index_checks() return
|
|
|
|
|
only the type of the integrity check of the last Stream
|
|
|
|
|
when multiple lzma_indexes were concatenated. Most
|
|
|
|
|
applications don't use these APIs but in xz it made
|
|
|
|
|
xz --list not list all check types from concatenated .xz
|
|
|
|
|
files. In xz --list --verbose only the per-file "Check:"
|
|
|
|
|
lines were affected and in xz --robot --list only the "file"
|
|
|
|
|
line was affected.
|
|
|
|
|
|
|
|
|
|
- Added ABI compatibility with executables that were linked
|
|
|
|
|
against liblzma in RHEL/CentOS 7 or other liblzma builds
|
|
|
|
|
that had copied the problematic patch from RHEL/CentOS 7
|
|
|
|
|
(xz-5.2.2-compat-libs.patch). For the details, see the
|
|
|
|
|
comment at the top of src/liblzma/validate_map.sh.
|
|
|
|
|
|
|
|
|
|
WARNING: This uses __symver__ attribute with GCC >= 10.
|
|
|
|
|
In other cases the traditional __asm__(".symver ...")
|
|
|
|
|
is used. Using link-time optimization (LTO, -flto) with
|
|
|
|
|
GCC versions older than 10 can silently result in
|
|
|
|
|
broken liblzma.so.5 (incorrect symbol versions)! If you
|
|
|
|
|
want to use -flto with GCC, you must use GCC >= 10.
|
|
|
|
|
LTO with Clang seems to work even with the traditional
|
|
|
|
|
__asm__(".symver ...") method.
|
|
|
|
|
|
|
|
|
|
* xzgrep: Fixed compatibility with old shells that break if
|
|
|
|
|
comments inside command substitutions have apostrophes (').
|
|
|
|
|
This problem was introduced in 5.2.6.
|
|
|
|
|
|
|
|
|
|
* Build systems:
|
|
|
|
|
|
|
|
|
|
- New #define in config.h: HAVE_SYMBOL_VERSIONS_LINUX
|
|
|
|
|
|
|
|
|
|
- Windows: Fixed liblzma.dll build with Visual Studio project
|
|
|
|
|
files. It broke in 5.2.6 due to a change that was made to
|
|
|
|
|
improve CMake support.
|
|
|
|
|
|
|
|
|
|
- Windows: Building liblzma with UNICODE defined should now
|
|
|
|
|
work.
|
|
|
|
|
|
|
|
|
|
- CMake files are now actually included in the release tarball.
|
|
|
|
|
They should have been in 5.2.5 already.
|
|
|
|
|
|
|
|
|
|
- Minor CMake fixes and improvements.
|
|
|
|
|
|
|
|
|
|
* Added a new translation: Turkish
|
|
|
|
|
|
|
|
|
|
|
2022-08-12 15:31:47 +00:00
|
|
|
5.2.6 (2022-08-12)
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- The --keep option now accepts symlinks, hardlinks, and
|
|
|
|
|
setuid, setgid, and sticky files. Previously this required
|
|
|
|
|
using --force.
|
|
|
|
|
|
|
|
|
|
- When copying metadata from the source file to the destination
|
|
|
|
|
file, don't try to set the group (GID) if it is already set
|
|
|
|
|
correctly. This avoids a failure on OpenBSD (and possibly on
|
|
|
|
|
a few other OSes) where files may get created so that their
|
|
|
|
|
group doesn't belong to the user, and fchown(2) can fail even
|
|
|
|
|
if it needs to do nothing.
|
|
|
|
|
|
|
|
|
|
- Cap --memlimit-compress to 2000 MiB instead of 4020 MiB on
|
|
|
|
|
MIPS32 because on MIPS32 userspace processes are limited
|
|
|
|
|
to 2 GiB of address space.
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Fixed a missing error-check in the threaded encoder. If a
|
|
|
|
|
small memory allocation fails, a .xz file with an invalid
|
|
|
|
|
Index field would be created. Decompressing such a file would
|
|
|
|
|
produce the correct output but result in an error at the end.
|
|
|
|
|
Thus this is a "mild" data corruption bug. Note that while
|
|
|
|
|
a failed memory allocation can trigger the bug, it cannot
|
|
|
|
|
cause invalid memory access.
|
|
|
|
|
|
|
|
|
|
- The decoder for .lzma files now supports files that have
|
|
|
|
|
uncompressed size stored in the header and still use the
|
|
|
|
|
end of payload marker (end of stream marker) at the end
|
|
|
|
|
of the LZMA stream. Such files are rare but, according to
|
|
|
|
|
the documentation in LZMA SDK, they are valid.
|
|
|
|
|
doc/lzma-file-format.txt was updated too.
|
|
|
|
|
|
|
|
|
|
- Improved 32-bit x86 assembly files:
|
|
|
|
|
* Support Intel Control-flow Enforcement Technology (CET)
|
|
|
|
|
* Use non-executable stack on FreeBSD.
|
|
|
|
|
|
|
|
|
|
- Visual Studio: Use non-standard _MSVC_LANG to detect C++
|
|
|
|
|
standard version in the lzma.h API header. It's used to
|
|
|
|
|
detect when "noexcept" can be used.
|
|
|
|
|
|
|
|
|
|
* xzgrep:
|
|
|
|
|
|
|
|
|
|
- Fixed arbitrary command injection via a malicious filename
|
|
|
|
|
(CVE-2022-1271, ZDI-CAN-16587). A standalone patch for
|
|
|
|
|
this was released to the public on 2022-04-07. A slight
|
|
|
|
|
robustness improvement has been made since then and, if
|
|
|
|
|
using GNU or *BSD grep, a new faster method is now used
|
|
|
|
|
that doesn't use the old sed-based construct at all. This
|
|
|
|
|
also fixes bad output with GNU grep >= 3.5 (2020-09-27)
|
|
|
|
|
when xzgrepping binary files.
|
|
|
|
|
|
|
|
|
|
This vulnerability was discovered by:
|
|
|
|
|
cleemy desu wayo working with Trend Micro Zero Day Initiative
|
|
|
|
|
|
|
|
|
|
- Fixed detection of corrupt .bz2 files.
|
|
|
|
|
|
|
|
|
|
- Improved error handling to fix exit status in some situations
|
|
|
|
|
and to fix handling of signals: in some situations a signal
|
|
|
|
|
didn't make xzgrep exit when it clearly should have. It's
|
|
|
|
|
possible that the signal handling still isn't quite perfect
|
|
|
|
|
but hopefully it's good enough.
|
|
|
|
|
|
|
|
|
|
- Documented exit statuses on the man page.
|
|
|
|
|
|
|
|
|
|
- xzegrep and xzfgrep now use "grep -E" and "grep -F" instead
|
|
|
|
|
of the deprecated egrep and fgrep commands.
|
|
|
|
|
|
|
|
|
|
- Fixed parsing of the options -E, -F, -G, -P, and -X. The
|
2023-07-31 12:02:21 +00:00
|
|
|
problem occurred when multiple options were specified in
|
2022-08-12 15:31:47 +00:00
|
|
|
a single argument, for example,
|
|
|
|
|
|
|
|
|
|
echo foo | xzgrep -Fe foo
|
|
|
|
|
|
|
|
|
|
treated foo as a filename because -Fe wasn't correctly
|
|
|
|
|
split into -F -e.
|
|
|
|
|
|
|
|
|
|
- Added zstd support.
|
|
|
|
|
|
|
|
|
|
* xzdiff/xzcmp:
|
|
|
|
|
|
|
|
|
|
- Fixed wrong exit status. Exit status could be 2 when the
|
|
|
|
|
correct value is 1.
|
|
|
|
|
|
|
|
|
|
- Documented on the man page that exit status of 2 is used
|
|
|
|
|
for decompression errors.
|
|
|
|
|
|
|
|
|
|
- Added zstd support.
|
|
|
|
|
|
|
|
|
|
* xzless:
|
|
|
|
|
|
|
|
|
|
- Fix less(1) version detection. It failed if the version number
|
|
|
|
|
from "less -V" contained a dot.
|
|
|
|
|
|
|
|
|
|
* Translations:
|
|
|
|
|
|
|
|
|
|
- Added new translations: Catalan, Croatian, Esperanto,
|
|
|
|
|
Korean, Portuguese, Romanian, Serbian, Spanish, Swedish,
|
|
|
|
|
and Ukrainian
|
|
|
|
|
|
|
|
|
|
- Updated the Brazilian Portuguese translation.
|
|
|
|
|
|
|
|
|
|
- Added French man page translation. This and the existing
|
|
|
|
|
German translation aren't complete anymore because the
|
|
|
|
|
English man pages got a few updates and the translators
|
|
|
|
|
weren't reached so that they could update their work.
|
|
|
|
|
|
|
|
|
|
* Build systems:
|
|
|
|
|
|
|
|
|
|
- Windows: Fix building of resource files when config.h isn't
|
|
|
|
|
used. CMake + Visual Studio can now build liblzma.dll.
|
|
|
|
|
|
|
|
|
|
- Various fixes to the CMake support. Building static or shared
|
|
|
|
|
liblzma should work fine in most cases. In contrast, building
|
|
|
|
|
the command line tools with CMake is still clearly incomplete
|
|
|
|
|
and experimental and should be used for testing only.
|
|
|
|
|
|
|
|
|
|
|
2020-03-17 14:24:28 +00:00
|
|
|
5.2.5 (2020-03-17)
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Fixed several C99/C11 conformance bugs. Now the code is clean
|
|
|
|
|
under gcc/clang -fsanitize=undefined. Some of these changes
|
|
|
|
|
might have a negative effect on performance with old GCC
|
|
|
|
|
versions or compilers other than GCC and Clang. The configure
|
|
|
|
|
option --enable-unsafe-type-punning can be used to (mostly)
|
|
|
|
|
restore the old behavior but it shouldn't normally be used.
|
|
|
|
|
|
|
|
|
|
- Improved API documentation of lzma_properties_decode().
|
|
|
|
|
|
|
|
|
|
- Added a very minor encoder speed optimization.
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- Fixed a crash in "xz -dcfv not_an_xz_file". All four options
|
|
|
|
|
were required to trigger it. The crash occurred in the
|
|
|
|
|
progress indicator code when xz was in passthru mode where
|
|
|
|
|
xz works like "cat".
|
|
|
|
|
|
|
|
|
|
- Fixed an integer overflow with 32-bit off_t. It could happen
|
|
|
|
|
when decompressing a file that has a long run of zero bytes
|
|
|
|
|
which xz would try to write as a sparse file. Since the build
|
|
|
|
|
system enables large file support by default, off_t is
|
|
|
|
|
normally 64-bit even on 32-bit systems.
|
|
|
|
|
|
|
|
|
|
- Fixes for --flush-timeout:
|
|
|
|
|
* Fix semi-busy-waiting.
|
|
|
|
|
* Avoid unneeded flushes when no new input has arrived
|
|
|
|
|
since the previous flush was completed.
|
|
|
|
|
|
|
|
|
|
- Added a special case for 32-bit xz: If --memlimit-compress is
|
|
|
|
|
used to specify a limit that exceeds 4020 MiB, the limit will
|
|
|
|
|
be set to 4020 MiB. The values "0" and "max" aren't affected
|
|
|
|
|
by this and neither is decompression. This hack can be
|
|
|
|
|
helpful when a 32-bit xz has access to 4 GiB address space
|
|
|
|
|
but the specified memlimit exceeds 4 GiB. This can happen
|
|
|
|
|
e.g. with some scripts.
|
|
|
|
|
|
|
|
|
|
- Capsicum sandbox is now enabled by default where available
|
|
|
|
|
(FreeBSD >= 10). The sandbox debug messages (xz -vv) were
|
|
|
|
|
removed since they seemed to be more annoying than useful.
|
|
|
|
|
|
|
|
|
|
- DOS build now requires DJGPP 2.05 instead of 2.04beta.
|
|
|
|
|
A workaround for a locale problem with DJGPP 2.05 was added.
|
|
|
|
|
|
|
|
|
|
* xzgrep and other scripts:
|
|
|
|
|
|
|
|
|
|
- Added a configure option --enable-path-for-scripts=PREFIX.
|
|
|
|
|
It is disabled by default except on Solaris where the default
|
|
|
|
|
is /usr/xpg4/bin. See INSTALL for details.
|
|
|
|
|
|
|
|
|
|
- Added a workaround for a POSIX shell detection problem on
|
|
|
|
|
Solaris.
|
|
|
|
|
|
|
|
|
|
* Build systems:
|
|
|
|
|
|
|
|
|
|
- Added preliminary build instructions for z/OS. See INSTALL
|
|
|
|
|
section 1.2.9.
|
|
|
|
|
|
|
|
|
|
- Experimental CMake support was added. It should work to build
|
|
|
|
|
static liblzma on a few operating systems. It may or may not
|
|
|
|
|
work to build shared liblzma. On some platforms it can build
|
|
|
|
|
xz and xzdec too but those are only for testing. See the
|
|
|
|
|
comment in the beginning of CMakeLists.txt for details.
|
|
|
|
|
|
|
|
|
|
- Visual Studio project files were updated.
|
|
|
|
|
WindowsTargetPlatformVersion was removed from VS2017 files
|
|
|
|
|
and set to "10.0" in the added VS2019 files. In the future
|
|
|
|
|
the VS project files will be removed when CMake support is
|
|
|
|
|
good enough.
|
|
|
|
|
|
|
|
|
|
- New #defines in config.h: HAVE___BUILTIN_ASSUME_ALIGNED,
|
|
|
|
|
HAVE___BUILTIN_BSWAPXX, and TUKLIB_USE_UNSAFE_TYPE_PUNNING.
|
|
|
|
|
|
|
|
|
|
- autogen.sh has a new optional dependency on po4a and a new
|
|
|
|
|
option --no-po4a to skip that step. This matters only if one
|
|
|
|
|
wants to remake the build files. po4a is used to update the
|
|
|
|
|
translated man pages but as long as the man pages haven't
|
|
|
|
|
been modified, there's nothing to update and one can use
|
|
|
|
|
--no-po4a to avoid the dependency on po4a.
|
|
|
|
|
|
|
|
|
|
* Translations:
|
|
|
|
|
|
|
|
|
|
- XZ Utils translations are now handled by the Translation
|
|
|
|
|
Project: https://translationproject.org/domain/xz.html
|
|
|
|
|
|
|
|
|
|
- All man pages are now included in German too.
|
|
|
|
|
|
|
|
|
|
- New xz translations: Brazilian Portuguese, Finnish,
|
|
|
|
|
Hungarian, Chinese (simplified), Chinese (traditional),
|
|
|
|
|
and Danish (partial translation)
|
|
|
|
|
|
|
|
|
|
- Updated xz translations: French, German, Italian, and Polish
|
|
|
|
|
|
|
|
|
|
- Unfortunately a few new xz translations weren't included due
|
|
|
|
|
to technical problems like too long lines in --help output or
|
|
|
|
|
misaligned column headings in tables. In the future, many of
|
|
|
|
|
these strings will be split and e.g. the table column
|
|
|
|
|
alignment will be handled in software. This should make the
|
|
|
|
|
strings easier to translate.
|
|
|
|
|
|
|
|
|
|
|
2018-04-29 15:15:37 +00:00
|
|
|
5.2.4 (2018-04-29)
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Allow 0 as memory usage limit instead of returning
|
|
|
|
|
LZMA_PROG_ERROR. Now 0 is treated as if 1 byte was specified,
|
|
|
|
|
which effectively is the same as 0.
|
|
|
|
|
|
|
|
|
|
- Use "noexcept" keyword instead of "throw()" in the public
|
|
|
|
|
headers when a C++11 (or newer standard) compiler is used.
|
|
|
|
|
|
|
|
|
|
- Added a portability fix for recent Intel C Compilers.
|
|
|
|
|
|
|
|
|
|
- Microsoft Visual Studio build files have been moved under
|
|
|
|
|
windows/vs2013 and windows/vs2017.
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- Fix "xz --list --robot missing_or_bad_file.xz" which would
|
2019-05-08 05:30:57 +00:00
|
|
|
try to print an uninitialized string and thus produce garbage
|
2018-04-29 15:15:37 +00:00
|
|
|
output. Since the exit status is non-zero, most uses of such
|
|
|
|
|
a command won't try to interpret the garbage output.
|
|
|
|
|
|
|
|
|
|
- "xz --list foo.xz" could print "Internal error (bug)" in a
|
|
|
|
|
corner case where a specific memory usage limit had been set.
|
|
|
|
|
|
|
|
|
|
|
2016-12-30 11:25:10 +00:00
|
|
|
5.2.3 (2016-12-30)
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- Always close a file before trying to delete it to avoid
|
|
|
|
|
problems on some operating system and file system combinations.
|
|
|
|
|
|
|
|
|
|
- Fixed copying of file timestamps on Windows.
|
|
|
|
|
|
|
|
|
|
- Added experimental (disabled by default) sandbox support using
|
|
|
|
|
Capsicum (FreeBSD >= 10). See --enable-sandbox in INSTALL.
|
|
|
|
|
|
|
|
|
|
* C99/C11 conformance fixes to liblzma. The issues affected at least
|
|
|
|
|
some builds using link-time optimizations.
|
|
|
|
|
|
|
|
|
|
* Fixed bugs in the rarely-used function lzma_index_dup().
|
|
|
|
|
|
|
|
|
|
* Use of external SHA-256 code is now disabled by default.
|
|
|
|
|
It can still be enabled by passing --enable-external-sha256
|
|
|
|
|
to configure. The reasons to disable it by default (see INSTALL
|
|
|
|
|
for more details):
|
|
|
|
|
|
|
|
|
|
- Some OS-specific SHA-256 implementations conflict with
|
|
|
|
|
OpenSSL and cause problems in programs that link against both
|
|
|
|
|
liblzma and libcrypto. At least FreeBSD 10 and MINIX 3.3.0
|
|
|
|
|
are affected.
|
|
|
|
|
|
|
|
|
|
- The internal SHA-256 is faster than the SHA-256 code in
|
|
|
|
|
some operating systems.
|
|
|
|
|
|
|
|
|
|
* Changed CPU core count detection to use sched_getaffinity() on
|
|
|
|
|
GNU/Linux and GNU/kFreeBSD.
|
|
|
|
|
|
|
|
|
|
* Fixes to the build-system and xz to make xz buildable even when
|
|
|
|
|
encoders, decoders, or threading have been disabled from libilzma
|
|
|
|
|
using configure options. These fixes added two new #defines to
|
|
|
|
|
config.h: HAVE_ENCODERS and HAVE_DECODERS.
|
|
|
|
|
|
|
|
|
|
|
2015-09-29 10:57:28 +00:00
|
|
|
5.2.2 (2015-09-29)
|
|
|
|
|
|
|
|
|
|
* Fixed bugs in QNX-specific code.
|
|
|
|
|
|
|
|
|
|
* Omitted the use of pipe2() even if it is available to avoid
|
|
|
|
|
portability issues with some old Linux and glibc combinations.
|
|
|
|
|
|
|
|
|
|
* Updated German translation.
|
|
|
|
|
|
|
|
|
|
* Added project files to build static and shared liblzma (not the
|
|
|
|
|
whole XZ Utils) with Visual Studio 2013 update 2 or later.
|
|
|
|
|
|
|
|
|
|
* Documented that threaded decompression hasn't been implemented
|
|
|
|
|
yet. A 5.2.0 NEWS entry describing multi-threading support had
|
|
|
|
|
incorrectly said "decompression" when it should have said
|
|
|
|
|
"compression".
|
|
|
|
|
|
|
|
|
|
|
2015-02-26 11:01:09 +00:00
|
|
|
5.2.1 (2015-02-26)
|
|
|
|
|
|
|
|
|
|
* Fixed a compression-ratio regression in fast mode of LZMA1 and
|
|
|
|
|
LZMA2. The bug is present in 5.1.4beta and 5.2.0 releases.
|
|
|
|
|
|
|
|
|
|
* Fixed a portability problem in xz that affected at least OpenBSD.
|
|
|
|
|
|
|
|
|
|
* Fixed xzdiff to be compatible with FreeBSD's mktemp which differs
|
|
|
|
|
from most other mktemp implementations.
|
|
|
|
|
|
|
|
|
|
* Changed CPU core count detection to use cpuset_getaffinity() on
|
|
|
|
|
FreeBSD.
|
|
|
|
|
|
|
|
|
|
|
2014-12-21 12:32:33 +00:00
|
|
|
5.2.0 (2014-12-21)
|
|
|
|
|
|
|
|
|
|
Since 5.1.4beta:
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.0.8
|
|
|
|
|
|
|
|
|
|
* liblzma: Fixed lzma_stream_encoder_mt_memusage() when a preset
|
|
|
|
|
was used.
|
|
|
|
|
|
|
|
|
|
* xzdiff: If mktemp isn't installed, mkdir will be used as
|
|
|
|
|
a fallback to create a temporary directory. Installing mktemp
|
|
|
|
|
is still recommended.
|
|
|
|
|
|
|
|
|
|
* Updated French, German, Italian, Polish, and Vietnamese
|
|
|
|
|
translations.
|
|
|
|
|
|
|
|
|
|
Summary of fixes and new features added in the 5.1.x development
|
|
|
|
|
releases:
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Added support for multi-threaded compression. See the
|
|
|
|
|
lzma_mt structure, lzma_stream_encoder_mt(), and
|
|
|
|
|
lzma_stream_encoder_mt_memusage() in <lzma/container.h>,
|
|
|
|
|
lzma_get_progress() in <lzma/base.h>, and lzma_cputhreads()
|
|
|
|
|
in <lzma/hardware.h> for details.
|
|
|
|
|
|
|
|
|
|
- Made the uses of lzma_allocator const correct.
|
|
|
|
|
|
|
|
|
|
- Added lzma_block_uncomp_encode() to create uncompressed
|
|
|
|
|
.xz Blocks using LZMA2 uncompressed chunks.
|
|
|
|
|
|
|
|
|
|
- Added support for LZMA_IGNORE_CHECK.
|
|
|
|
|
|
|
|
|
|
- A few speed optimizations were made.
|
|
|
|
|
|
|
|
|
|
- Added support for symbol versioning. It is enabled by default
|
|
|
|
|
on GNU/Linux, other GNU-based systems, and FreeBSD.
|
|
|
|
|
|
|
|
|
|
- liblzma (not the whole XZ Utils) should now be buildable
|
|
|
|
|
with MSVC 2013 update 2 or later using windows/config.h.
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- Fixed a race condition in the signal handling. It was
|
|
|
|
|
possible that e.g. the first SIGINT didn't make xz exit
|
|
|
|
|
if reading or writing blocked and one had bad luck. The fix
|
|
|
|
|
is non-trivial, so as of writing it is unknown if it will be
|
|
|
|
|
backported to the v5.0 branch.
|
|
|
|
|
|
2015-05-12 15:08:24 +00:00
|
|
|
- Multi-threaded compression can be enabled with the
|
2014-12-21 12:32:33 +00:00
|
|
|
--threads (-T) option.
|
2015-05-12 15:08:24 +00:00
|
|
|
[Fixed: This originally said "decompression".]
|
2014-12-21 12:32:33 +00:00
|
|
|
|
|
|
|
|
- New command line options in xz: --single-stream,
|
|
|
|
|
--block-size=SIZE, --block-list=SIZES,
|
|
|
|
|
--flush-timeout=TIMEOUT, and --ignore-check.
|
|
|
|
|
|
|
|
|
|
- xz -lvv now shows the minimum xz version that is required to
|
|
|
|
|
decompress the file. Currently it is 5.0.0 for all supported
|
|
|
|
|
.xz files except files with empty LZMA2 streams require 5.0.2.
|
|
|
|
|
|
|
|
|
|
* xzdiff and xzgrep now support .lzo files if lzop is installed.
|
|
|
|
|
The .tzo suffix is also recognized as a shorthand for .tar.lzo.
|
|
|
|
|
|
|
|
|
|
|
2014-09-14 18:50:13 +00:00
|
|
|
5.1.4beta (2014-09-14)
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.0.6
|
|
|
|
|
|
|
|
|
|
* liblzma: Fixed the use of presets in threaded encoder
|
|
|
|
|
initialization.
|
|
|
|
|
|
|
|
|
|
* xz --block-list and --block-size can now be used together
|
|
|
|
|
in single-threaded mode. Previously the combination only
|
|
|
|
|
worked in multi-threaded mode.
|
|
|
|
|
|
|
|
|
|
* Added support for LZMA_IGNORE_CHECK to liblzma and made it
|
|
|
|
|
available in xz as --ignore-check.
|
|
|
|
|
|
|
|
|
|
* liblzma speed optimizations:
|
|
|
|
|
|
|
|
|
|
- Initialization of a new LZMA1 or LZMA2 encoder has been
|
|
|
|
|
optimized. (The speed of reinitializing an already-allocated
|
|
|
|
|
encoder isn't affected.) This helps when compressing many
|
|
|
|
|
small buffers with lzma_stream_buffer_encode() and other
|
|
|
|
|
similar situations where an already-allocated encoder state
|
|
|
|
|
isn't reused. This speed-up is visible in xz too if one
|
|
|
|
|
compresses many small files one at a time instead running xz
|
|
|
|
|
once and giving all files as command-line arguments.
|
|
|
|
|
|
|
|
|
|
- Buffer comparisons are now much faster when unaligned access
|
|
|
|
|
is allowed (configured with --enable-unaligned-access). This
|
|
|
|
|
speeds up encoding significantly. There is arch-specific code
|
|
|
|
|
for 32-bit and 64-bit x86 (32-bit needs SSE2 for the best
|
|
|
|
|
results and there's no run-time CPU detection for now).
|
|
|
|
|
For other archs there is only generic code which probably
|
|
|
|
|
isn't as optimal as arch-specific solutions could be.
|
|
|
|
|
|
|
|
|
|
- A few speed optimizations were made to the SHA-256 code.
|
|
|
|
|
(Note that the builtin SHA-256 code isn't used on all
|
|
|
|
|
operating systems.)
|
|
|
|
|
|
|
|
|
|
* liblzma can now be built with MSVC 2013 update 2 or later
|
|
|
|
|
using windows/config.h.
|
|
|
|
|
|
|
|
|
|
* Vietnamese translation was added.
|
|
|
|
|
|
|
|
|
|
|
2013-10-26 10:25:02 +00:00
|
|
|
5.1.3alpha (2013-10-26)
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.0.5
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Fixed a deadlock in the threaded encoder.
|
|
|
|
|
|
|
|
|
|
- Made the uses of lzma_allocator const correct.
|
|
|
|
|
|
|
|
|
|
- Added lzma_block_uncomp_encode() to create uncompressed
|
|
|
|
|
.xz Blocks using LZMA2 uncompressed chunks.
|
|
|
|
|
|
|
|
|
|
- Added support for native threads on Windows and the ability
|
|
|
|
|
to detect the number of CPU cores.
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- Fixed a race condition in the signal handling. It was
|
|
|
|
|
possible that e.g. the first SIGINT didn't make xz exit
|
|
|
|
|
if reading or writing blocked and one had bad luck. The fix
|
|
|
|
|
is non-trivial, so as of writing it is unknown if it will be
|
|
|
|
|
backported to the v5.0 branch.
|
|
|
|
|
|
|
|
|
|
- Made the progress indicator work correctly in threaded mode.
|
|
|
|
|
|
|
|
|
|
- Threaded encoder now works together with --block-list=SIZES.
|
|
|
|
|
|
|
|
|
|
- Added preliminary support for --flush-timeout=TIMEOUT.
|
|
|
|
|
It can be useful for (somewhat) real-time streaming. For
|
|
|
|
|
now the decompression side has to be done with something
|
|
|
|
|
else than the xz tool due to how xz does buffering, but this
|
|
|
|
|
should be fixed.
|
|
|
|
|
|
|
|
|
|
|
2012-07-04 17:01:19 +00:00
|
|
|
5.1.2alpha (2012-07-04)
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.0.3 and 5.0.4
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Fixed a deadlock and an invalid free() in the threaded encoder.
|
|
|
|
|
|
|
|
|
|
- Added support for symbol versioning. It is enabled by default
|
|
|
|
|
on GNU/Linux, other GNU-based systems, and FreeBSD.
|
|
|
|
|
|
|
|
|
|
- Use SHA-256 implementation from the operating system if one is
|
|
|
|
|
available in libc, libmd, or libutil. liblzma won't use e.g.
|
|
|
|
|
OpenSSL or libgcrypt to avoid introducing new dependencies.
|
|
|
|
|
|
|
|
|
|
- Fixed liblzma.pc for static linking.
|
|
|
|
|
|
|
|
|
|
- Fixed a few portability bugs.
|
|
|
|
|
|
|
|
|
|
* xz --decompress --single-stream now fixes the input position after
|
|
|
|
|
successful decompression. Now the following works:
|
|
|
|
|
|
|
|
|
|
echo foo | xz > foo.xz
|
|
|
|
|
echo bar | xz >> foo.xz
|
|
|
|
|
( xz -dc --single-stream ; xz -dc --single-stream ) < foo.xz
|
|
|
|
|
|
|
|
|
|
Note that it doesn't work if the input is not seekable
|
|
|
|
|
or if there is Stream Padding between the concatenated
|
|
|
|
|
.xz Streams.
|
|
|
|
|
|
|
|
|
|
* xz -lvv now shows the minimum xz version that is required to
|
|
|
|
|
decompress the file. Currently it is 5.0.0 for all supported .xz
|
|
|
|
|
files except files with empty LZMA2 streams require 5.0.2.
|
|
|
|
|
|
|
|
|
|
* Added an *incomplete* implementation of --block-list=SIZES to xz.
|
|
|
|
|
It only works correctly in single-threaded mode and when
|
|
|
|
|
--block-size isn't used at the same time. --block-list allows
|
|
|
|
|
specifying the sizes of Blocks which can be useful e.g. when
|
|
|
|
|
creating files for random-access reading.
|
|
|
|
|
|
|
|
|
|
|
2011-04-12 08:46:01 +00:00
|
|
|
5.1.1alpha (2011-04-12)
|
|
|
|
|
|
|
|
|
|
* All fixes from 5.0.2
|
|
|
|
|
|
|
|
|
|
* liblzma fixes that will also be included in 5.0.3:
|
|
|
|
|
|
|
|
|
|
- A memory leak was fixed.
|
|
|
|
|
|
|
|
|
|
- lzma_stream_buffer_encode() no longer creates an empty .xz
|
|
|
|
|
Block if encoding an empty buffer. Such an empty Block with
|
|
|
|
|
LZMA2 data would trigger a bug in 5.0.1 and older (see the
|
|
|
|
|
first bullet point in 5.0.2 notes). When releasing 5.0.2,
|
|
|
|
|
I thought that no encoder creates this kind of files but
|
|
|
|
|
I was wrong.
|
|
|
|
|
|
|
|
|
|
- Validate function arguments better in a few functions. Most
|
|
|
|
|
importantly, specifying an unsupported integrity check to
|
|
|
|
|
lzma_stream_buffer_encode() no longer creates a corrupt .xz
|
|
|
|
|
file. Probably no application tries to do that, so this
|
|
|
|
|
shouldn't be a big problem in practice.
|
|
|
|
|
|
|
|
|
|
- Document that lzma_block_buffer_encode(),
|
|
|
|
|
lzma_easy_buffer_encode(), lzma_stream_encoder(), and
|
|
|
|
|
lzma_stream_buffer_encode() may return LZMA_UNSUPPORTED_CHECK.
|
|
|
|
|
|
|
|
|
|
- The return values of the _memusage() functions are now
|
|
|
|
|
documented better.
|
|
|
|
|
|
|
|
|
|
* Support for multithreaded compression was added using the simplest
|
|
|
|
|
method, which splits the input data into blocks and compresses
|
|
|
|
|
them independently. Other methods will be added in the future.
|
|
|
|
|
The current method has room for improvement, e.g. it is possible
|
|
|
|
|
to reduce the memory usage.
|
|
|
|
|
|
|
|
|
|
* Added the options --single-stream and --block-size=SIZE to xz.
|
|
|
|
|
|
|
|
|
|
* xzdiff and xzgrep now support .lzo files if lzop is installed.
|
|
|
|
|
The .tzo suffix is also recognized as a shorthand for .tar.lzo.
|
|
|
|
|
|
|
|
|
|
* Support for short 8.3 filenames under DOS was added to xz. It is
|
|
|
|
|
experimental and may change before it gets into a stable release.
|
|
|
|
|
|
2010-10-23 11:15:35 +00:00
|
|
|
|
2014-12-21 12:32:22 +00:00
|
|
|
5.0.8 (2014-12-21)
|
|
|
|
|
|
|
|
|
|
* Fixed an old bug in xzgrep that affected OpenBSD and probably
|
|
|
|
|
a few other operating systems too.
|
|
|
|
|
|
|
|
|
|
* Updated French and German translations.
|
|
|
|
|
|
|
|
|
|
* Added support for detecting the amount of RAM on AmigaOS/AROS.
|
|
|
|
|
|
|
|
|
|
* Minor build system updates.
|
|
|
|
|
|
|
|
|
|
|
2014-09-20 18:01:21 +00:00
|
|
|
5.0.7 (2014-09-20)
|
|
|
|
|
|
|
|
|
|
* Fix regressions introduced in 5.0.6:
|
|
|
|
|
|
|
|
|
|
- Fix building with non-GNU make.
|
|
|
|
|
|
|
|
|
|
- Fix invalid Libs.private value in liblzma.pc which broke
|
|
|
|
|
static linking against liblzma if the linker flags were
|
|
|
|
|
taken from pkg-config.
|
|
|
|
|
|
|
|
|
|
|
2014-09-14 18:50:13 +00:00
|
|
|
5.0.6 (2014-09-14)
|
|
|
|
|
|
|
|
|
|
* xzgrep now exits with status 0 if at least one file matched.
|
|
|
|
|
|
|
|
|
|
* A few minor portability and build system fixes
|
|
|
|
|
|
|
|
|
|
|
2013-06-30 16:40:11 +00:00
|
|
|
5.0.5 (2013-06-30)
|
|
|
|
|
|
|
|
|
|
* lzmadec and liblzma's lzma_alone_decoder(): Support decompressing
|
|
|
|
|
.lzma files that have less common settings in the headers
|
|
|
|
|
(dictionary size other than 2^n or 2^n + 2^(n-1), or uncompressed
|
|
|
|
|
size greater than 256 GiB). The limitations existed to avoid false
|
|
|
|
|
positives when detecting .lzma files. The lc + lp <= 4 limitation
|
|
|
|
|
still remains since liblzma's LZMA decoder has that limitation.
|
|
|
|
|
|
|
|
|
|
NOTE: xz's .lzma support or liblzma's lzma_auto_decoder() are NOT
|
|
|
|
|
affected by this change. They still consider uncommon .lzma headers
|
|
|
|
|
as not being in the .lzma format. Changing this would give way too
|
|
|
|
|
many false positives.
|
|
|
|
|
|
|
|
|
|
* xz:
|
|
|
|
|
|
|
|
|
|
- Interaction of preset and custom filter chain options was
|
|
|
|
|
made less illogical. This affects only certain less typical
|
|
|
|
|
uses cases so few people are expected to notice this change.
|
|
|
|
|
|
|
|
|
|
Now when a custom filter chain option (e.g. --lzma2) is
|
|
|
|
|
specified, all preset options (-0 ... -9, -e) earlier are on
|
|
|
|
|
the command line are completely forgotten. Similarly, when
|
|
|
|
|
a preset option is specified, all custom filter chain options
|
|
|
|
|
earlier on the command line are completely forgotten.
|
|
|
|
|
|
|
|
|
|
Example 1: "xz -9 --lzma2=preset=5 -e" is equivalent to "xz -e"
|
|
|
|
|
which is equivalent to "xz -6e". Earlier -e didn't put xz back
|
|
|
|
|
into preset mode and thus the example command was equivalent
|
|
|
|
|
to "xz --lzma2=preset=5".
|
|
|
|
|
|
|
|
|
|
Example 2: "xz -9e --lzma2=preset=5 -7" is equivalent to
|
|
|
|
|
"xz -7". Earlier a custom filter chain option didn't make
|
|
|
|
|
xz forget the -e option so the example was equivalent to
|
|
|
|
|
"xz -7e".
|
|
|
|
|
|
|
|
|
|
- Fixes and improvements to error handling.
|
|
|
|
|
|
|
|
|
|
- Various fixes to the man page.
|
|
|
|
|
|
|
|
|
|
* xzless: Fixed to work with "less" versions 448 and later.
|
|
|
|
|
|
|
|
|
|
* xzgrep: Made -h an alias for --no-filename.
|
|
|
|
|
|
|
|
|
|
* Include the previously missing debug/translation.bash which can
|
|
|
|
|
be useful for translators.
|
|
|
|
|
|
|
|
|
|
* Include a build script for Mac OS X. This has been in the Git
|
|
|
|
|
repository since 2010 but due to a mistake in Makefile.am the
|
|
|
|
|
script hasn't been included in a release tarball before.
|
|
|
|
|
|
|
|
|
|
|
2012-06-22 16:00:23 +00:00
|
|
|
5.0.4 (2012-06-22)
|
|
|
|
|
|
|
|
|
|
* liblzma:
|
|
|
|
|
|
|
|
|
|
- Fix lzma_index_init(). It could crash if memory allocation
|
|
|
|
|
failed.
|
|
|
|
|
|
|
|
|
|
- Fix the possibility of an incorrect LZMA_BUF_ERROR when a BCJ
|
|
|
|
|
filter is used and the application only provides exactly as
|
|
|
|
|
much output space as is the uncompressed size of the file.
|
|
|
|
|
|
|
|
|
|
- Fix a bug in doc/examples_old/xz_pipe_decompress.c. It didn't
|
|
|
|
|
check if the last call to lzma_code() really returned
|
|
|
|
|
LZMA_STREAM_END, which made the program think that truncated
|
|
|
|
|
files are valid.
|
|
|
|
|
|
|
|
|
|
- New example programs in doc/examples (old programs are now in
|
|
|
|
|
doc/examples_old). These have more comments and more detailed
|
|
|
|
|
error handling.
|
|
|
|
|
|
|
|
|
|
* Fix "xz -lvv foo.xz". It could crash on some corrupted files.
|
|
|
|
|
|
|
|
|
|
* Fix output of "xz --robot -lv" and "xz --robot -lvv" which
|
|
|
|
|
incorrectly printed the filename also in the "foo (x/x)" format.
|
|
|
|
|
|
|
|
|
|
* Fix exit status of "xzdiff foo.xz bar.xz".
|
|
|
|
|
|
|
|
|
|
* Fix exit status of "xzgrep foo binary_file".
|
|
|
|
|
|
|
|
|
|
* Fix portability to EBCDIC systems.
|
|
|
|
|
|
|
|
|
|
* Fix a configure issue on AIX with the XL C compiler. See INSTALL
|
|
|
|
|
for details.
|
|
|
|
|
|
|
|
|
|
* Update French, German, Italian, and Polish translations.
|
|
|
|
|
|
|
|
|
|
|
2011-05-22 13:42:11 +00:00
|
|
|
5.0.3 (2011-05-21)
|
|
|
|
|
|
|
|
|
|
* liblzma fixes:
|
|
|
|
|
|
|
|
|
|
- A memory leak was fixed.
|
|
|
|
|
|
|
|
|
|
- lzma_stream_buffer_encode() no longer creates an empty .xz
|
|
|
|
|
Block if encoding an empty buffer. Such an empty Block with
|
|
|
|
|
LZMA2 data would trigger a bug in 5.0.1 and older (see the
|
|
|
|
|
first bullet point in 5.0.2 notes). When releasing 5.0.2,
|
|
|
|
|
I thought that no encoder creates this kind of files but
|
|
|
|
|
I was wrong.
|
|
|
|
|
|
|
|
|
|
- Validate function arguments better in a few functions. Most
|
|
|
|
|
importantly, specifying an unsupported integrity check to
|
|
|
|
|
lzma_stream_buffer_encode() no longer creates a corrupt .xz
|
|
|
|
|
file. Probably no application tries to do that, so this
|
|
|
|
|
shouldn't be a big problem in practice.
|
|
|
|
|
|
|
|
|
|
- Document that lzma_block_buffer_encode(),
|
|
|
|
|
lzma_easy_buffer_encode(), lzma_stream_encoder(), and
|
|
|
|
|
lzma_stream_buffer_encode() may return LZMA_UNSUPPORTED_CHECK.
|
|
|
|
|
|
|
|
|
|
- The return values of the _memusage() functions are now
|
|
|
|
|
documented better.
|
|
|
|
|
|
|
|
|
|
* Fix command name detection in xzgrep. xzegrep and xzfgrep now
|
|
|
|
|
correctly use egrep and fgrep instead of grep.
|
|
|
|
|
|
|
|
|
|
* French translation was added.
|
|
|
|
|
|
|
|
|
|
|
2011-04-01 05:47:20 +00:00
|
|
|
5.0.2 (2011-04-01)
|
|
|
|
|
|
|
|
|
|
* LZMA2 decompressor now correctly accepts LZMA2 streams with no
|
|
|
|
|
uncompressed data. Previously it considered them corrupt. The
|
|
|
|
|
bug can affect applications that use raw LZMA2 streams. It is
|
|
|
|
|
very unlikely to affect .xz files because no compressor creates
|
|
|
|
|
.xz files with empty LZMA2 streams. (Empty .xz files are a
|
|
|
|
|
different thing than empty LZMA2 streams.)
|
|
|
|
|
|
|
|
|
|
* "xz --suffix=.foo filename.foo" now refuses to compress the
|
|
|
|
|
file due to it already having the suffix .foo. It was already
|
|
|
|
|
documented on the man page, but the code lacked the test.
|
|
|
|
|
|
|
|
|
|
* "xzgrep -l foo bar.xz" works now.
|
|
|
|
|
|
|
|
|
|
* Polish translation was added.
|
|
|
|
|
|
|
|
|
|
|
2011-01-28 18:16:57 +00:00
|
|
|
5.0.1 (2011-01-29)
|
|
|
|
|
|
|
|
|
|
* xz --force now (de)compresses files that have setuid, setgid,
|
|
|
|
|
or sticky bit set and files that have multiple hard links.
|
|
|
|
|
The man page had it documented this way already, but the code
|
|
|
|
|
had a bug.
|
|
|
|
|
|
|
|
|
|
* gzip and bzip2 support in xzdiff was fixed.
|
|
|
|
|
|
|
|
|
|
* Portability fixes
|
|
|
|
|
|
|
|
|
|
* Minor fix to Czech translation
|
|
|
|
|
|
|
|
|
|
|
2010-10-23 11:15:35 +00:00
|
|
|
5.0.0 (2010-10-23)
|
|
|
|
|
|
|
|
|
|
Only the most important changes compared to 4.999.9beta are listed
|
|
|
|
|
here. One change is especially important:
|
|
|
|
|
|
|
|
|
|
* The memory usage limit is now disabled by default. Some scripts
|
|
|
|
|
written before this change may have used --memory=max on xz command
|
|
|
|
|
line or in XZ_OPT. THESE USES OF --memory=max SHOULD BE REMOVED
|
|
|
|
|
NOW, because they interfere with user's ability to set the memory
|
|
|
|
|
usage limit himself. If user-specified limit causes problems to
|
|
|
|
|
your script, blame the user.
|
|
|
|
|
|
|
|
|
|
Other significant changes:
|
|
|
|
|
|
|
|
|
|
* Added support for XZ_DEFAULTS environment variable. This variable
|
|
|
|
|
allows users to set default options for xz, e.g. default memory
|
|
|
|
|
usage limit or default compression level. Scripts that use xz
|
|
|
|
|
must never set or unset XZ_DEFAULTS. Scripts should use XZ_OPT
|
|
|
|
|
instead if they need a way to pass options to xz via an
|
|
|
|
|
environment variable.
|
|
|
|
|
|
|
|
|
|
* The compression settings associated with the preset levels
|
|
|
|
|
-0 ... -9 have been changed. --extreme was changed a little too.
|
|
|
|
|
It is now less likely to make compression worse, but with some
|
|
|
|
|
files the new --extreme may compress slightly worse than the old
|
|
|
|
|
--extreme.
|
|
|
|
|
|
|
|
|
|
* If a preset level (-0 ... -9) is specified after a custom filter
|
|
|
|
|
chain options have been used (e.g. --lzma2), the custom filter
|
|
|
|
|
chain will be forgotten. Earlier the preset options were
|
|
|
|
|
completely ignored after custom filter chain options had been
|
|
|
|
|
seen.
|
|
|
|
|
|
|
|
|
|
* xz will create sparse files when decompressing if the uncompressed
|
|
|
|
|
data contains long sequences of binary zeros. This is done even
|
|
|
|
|
when writing to standard output that is connected to a regular
|
|
|
|
|
file and certain additional conditions are met to make it safe.
|
|
|
|
|
|
|
|
|
|
* Support for "xz --list" was added. Combine with --verbose or
|
|
|
|
|
--verbose --verbose (-vv) for detailed output.
|
|
|
|
|
|
|
|
|
|
* I had hoped that liblzma API would have been stable after
|
|
|
|
|
4.999.9beta, but there have been a couple of changes in the
|
|
|
|
|
advanced features, which don't affect most applications:
|
|
|
|
|
|
|
|
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- Index handling code was revised. If you were using the old
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API, you will get a compiler error (so it's easy to notice).
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- A subtle but important change was made to the Block handling
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API. lzma_block.version has to be initialized even for
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lzma_block_header_decode(). Code that doesn't do it will work
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for now, but might break in the future, which makes this API
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change easy to miss.
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* The major soname has been bumped to 5.0.0. liblzma API and ABI
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are now stable, so the need to recompile programs linking against
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liblzma shouldn't arise soon.
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