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Update NEWS for 5.0.6 and 5.1.4beta.
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NEWS
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NEWS
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XZ Utils Release Notes
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======================
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5.1.4beta (2014-09-14)
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* All fixes from 5.0.6
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* liblzma: Fixed the use of presets in threaded encoder
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initialization.
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* xz --block-list and --block-size can now be used together
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in single-threaded mode. Previously the combination only
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worked in multi-threaded mode.
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* Added support for LZMA_IGNORE_CHECK to liblzma and made it
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available in xz as --ignore-check.
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* liblzma speed optimizations:
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- Initialization of a new LZMA1 or LZMA2 encoder has been
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optimized. (The speed of reinitializing an already-allocated
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encoder isn't affected.) This helps when compressing many
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small buffers with lzma_stream_buffer_encode() and other
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similar situations where an already-allocated encoder state
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isn't reused. This speed-up is visible in xz too if one
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compresses many small files one at a time instead running xz
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once and giving all files as command-line arguments.
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- Buffer comparisons are now much faster when unaligned access
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is allowed (configured with --enable-unaligned-access). This
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speeds up encoding significantly. There is arch-specific code
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for 32-bit and 64-bit x86 (32-bit needs SSE2 for the best
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results and there's no run-time CPU detection for now).
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For other archs there is only generic code which probably
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isn't as optimal as arch-specific solutions could be.
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- A few speed optimizations were made to the SHA-256 code.
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(Note that the builtin SHA-256 code isn't used on all
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operating systems.)
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* liblzma can now be built with MSVC 2013 update 2 or later
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using windows/config.h.
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* Vietnamese translation was added.
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5.1.3alpha (2013-10-26)
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* All fixes from 5.0.5
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@ -121,6 +164,13 @@ XZ Utils Release Notes
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experimental and may change before it gets into a stable release.
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5.0.6 (2014-09-14)
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* xzgrep now exits with status 0 if at least one file matched.
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* A few minor portability and build system fixes
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5.0.5 (2013-06-30)
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* lzmadec and liblzma's lzma_alone_decoder(): Support decompressing
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