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@ -2,6 +2,92 @@ |
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XZ Utils Release Notes |
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====================== |
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5.3.2alpha (2021-10-28) |
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This release was made on short notice so that recent erofs-utils can |
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be built with LZMA support without needing a snapshot from xz.git. |
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Thus many pending things were not included, not even updated |
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translations (which would need to be updated for the new --list |
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strings anyway). |
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* All fixes from 5.2.5. |
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* xz: |
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- When copying metadata from the source file to the destination |
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file, don't try to set the group (GID) if it is already set |
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correctly. This avoids a failure on OpenBSD (and possibly on |
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a few other OSes) where files may get created so that their |
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group doesn't belong to the user, and fchown(2) can fail even |
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if it needs to do nothing. |
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- The --keep option now accepts symlinks, hardlinks, and |
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setuid, setgid, and sticky files. Previously this required |
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using --force. |
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- Split the long strings used in --list and --info-memory modes |
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to make them much easier for translators. |
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- If built with sandbox support and enabling the sandbox fails, |
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xz will now immediately exit with exit status of 1. Previously |
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it would only display a warning if -vv was used. |
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- Cap --memlimit-compress to 2000 MiB on MIPS32 because on |
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MIPS32 userspace processes are limited to 2 GiB of address |
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space. |
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* liblzma: |
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- Added lzma_microlzma_encoder() and lzma_microlzma_decoder(). |
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The API is in lzma/container.h. |
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The MicroLZMA format is a raw LZMA stream (without end marker) |
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whose first byte (always 0x00) has been replaced with |
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bitwise-negation of the LZMA properties (lc/lp/pb). It was |
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created for use in EROFS but may be used in other contexts |
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as well where it is important to avoid wasting bytes for |
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stream headers or footers. The format is also supported by |
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XZ Embedded. |
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The MicroLZMA encoder API in liblzma can compress into a |
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fixed-sized output buffer so that as much data is compressed |
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as can be fit into the buffer while still creating a valid |
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MicroLZMA stream. This is needed for EROFS. |
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- Added fuzzing support. |
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- Support Intel Control-flow Enforcement Technology (CET) in |
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32-bit x86 assembly files. |
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- Visual Studio: Use non-standard _MSVC_LANG to detect C++ |
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standard version in the lzma.h API header. It's used to |
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detect when "noexcept" can be used. |
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* Scripts: |
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- Fix exit status of xzdiff/xzcmp. Exit status could be 2 when |
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the correct value is 1. |
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- Fix exit status of xzgrep. |
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- Detect corrupt .bz2 files in xzgrep. |
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- Add zstd support to xzgrep and xzdiff/xzcmp. |
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- Fix less(1) version detection in xzless. It failed if the |
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version number from "less -V" contained a dot. |
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* Fix typos and technical issues in man pages. |
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* Build systems: |
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- Windows: Fix building of resource files when config.h isn't |
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used. CMake + Visual Studio can now build liblzma.dll. |
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- Various fixes to the CMake support. It might still need a few |
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more fixes even for liblzma-only builds. |
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5.3.1alpha (2018-04-29) |
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* All fixes from 5.2.4. |
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