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| -rw-r--r-- | NEWS | 47 |
1 files changed, 45 insertions, 2 deletions
@@ -1,6 +1,49 @@ -XZ Utils User-Visible Changes -============================= +XZ Utils Release Notes +====================== + +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. + 5.0.2 (2011-04-01) |