Update Changelog for new release.
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126
Changelog
126
Changelog
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== 3.0 Major Beta Release ==
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Basic capability to list contents of an archive without extracting to disk.
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Bump version and update command help text.
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Update README with additional option details.
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Change nftw() to depth-first scan to handle restoring directory permissions correctly.
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When sorting cause directories to be sorted after files and in descending order of nesting level.
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Take out stray printf().
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Detect some DICOM formats and use BSC for DICOM data.
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Overhaul documentation part #1
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Detect and handle uncompressed PDF files using libbsc.
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Force binary/text data detection for tar archives.
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Get rid of unnecessary CLI option.
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Add full pipeline mode check when archiving.
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Update to PackJPG 2.5i.
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Fixes crash with malformed Jpeg.
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Fix issue #12.
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Fix issue #13.
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Create output directory with correct mode.
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Fix the flow where pathname list is not sorted.
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Fix ppmd decompression bug introduced in previous commit.
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Reduce compression level for automatic pathname sorting.
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Change to extraction directory only after opening archive.
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Free PPMD buffer after compression, rather than caching.
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Introduce new API in allocator to release buffer to OS.
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Release LZMA buffers after use.
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Drastically reduce memory consumption of PPMD8 in adaptive mode (Use lower max model order).
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Detect AR archives and set the type.
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Re-use a less common type code for AR.
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Use Dispack generically for all executables and AR archives.
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Move MSDOS COM single-byte magic number checks to last in the list.
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Move advanced options flag into context structure.
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Include dtd files as text type.
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Update PackJPG to version 2.5h.
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Fix missing bounds checking in Delta2.
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Check harder with more strides in Delta2 for extreme compression levels.
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Make LibArchive filter process buffer more generic.
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Include explicit CLI flags for PackJPG and Dispack.
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Avoid auto-selection of filters if advanced options are specified.
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Add more robust checks for Jpeg and packJPG format files in filter routine.
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Use case-insensitive checks for extension names.
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Enable more features based on compression level, when archiving.
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Do not use Libbsc for TIFFs. Not all TIFFs compress well with Libbsc.
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Fix DEBUG-STATS build for Dispack.
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Use adapt2 as default compression in archive mode.
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Add more filter auto-selection by compression level in archive mode.
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Replace odd stride lengths in Delta2 with standard numeric type lengths and improve performance.
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Remove fast path exit to allow compressing headers and zero paddings via LZ4.
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Use libbsc for AVI and MP4 files.
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Use Libbsc for MP4 and FLAC files.
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Change some rare file type codes to indicate some common types.
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Use Libbsc for TIFF images.
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Workaround for packJPG limitation.
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Remove external Libbsc option.
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Add forked and optimized copy of LGPL version of Libbsc.
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Strip out Sort Transform from Libbsc copy.
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Reduce Libbsc memory use.
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Avoid redundant adler32 of data block in Libbsc.
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Use Libbsc for DNA Sequence data instead of PPMD. Faster, better compression.
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Fix pz extension handling for real.
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Avoid Delta2,LZP for TIFF files. Negatively impacts compression.
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Use libbsc/ppmd for BMP files.
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Fix extension based hashing.
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Do not append .pz extension to filenames already having it.
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Some code formatting changes.
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Fix PackJPG library usage. PackJPG interface doc is incomplete, ugh!
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Handle the case where PackJPG expands the file rather than compressing.
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Fix Dispack decoding.
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Add Dispack filter with auto-detection of x86 executables in archive mode.
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More elaborate magic header based detection of 32-bit and 64-bit x86 binaries.
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Always use fast-mode LZ4 in Adaptive modes.
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Optimize preprocessed compression and avoid a bunch of memory copies.
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Fix a crash.
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Add a few more file types.
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More comments.
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Fix fd leak.
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Fix issues when handling Jpegs where packJPG borks.
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Add fast handling of totally incompressible data (like Jpegs) in adaptive modes.
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Add function to indicate totally incompressible data when archiving.
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Reformat if statements in some places to reduce branching.
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Enable auto-filtering of archive entries based on compression level.
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Miscellaneous fixes.
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Work in progress changes for packJPG encoding and decoding.
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Enhance custom LibArchive filter functionlity.
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Add basic framework for file type based filters during libarchive stage.
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Add packJPG filter for Jpeg files (not active yet).
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Directory format changes for clarity.
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Add own implementation of archive entry extraction to allow custom filters.
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Fix magic number check for endianness.
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Structured handling of file types.
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Handling of already compressed data based on compression algorithm.
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Add a few more extension types.
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Leverage file type detection(archiver) to improve compression performance.
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Use detected file/data type(archiver) for Adaptive compression modes.
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Update type flags and add more extensions.
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Add file type detection based on magic values.
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Add extension based file type detection and setting segment data type.
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Use Bob Jenkins Minimal Perfect Hash to check for known extensions.
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Use semaphore signaling and direct buffer copy for extraction.
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Clear off private xattrs when extracting.
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Enable pathname sorting only for high compression levels.
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Replace slow pipe with direct memory copy for archive extraction.
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Avoid using pipe during archive creation. Use semaphores and direct memory copy.
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Use mmap to read from the pathlist file for performance.
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Functionality to sort pathnames based on file extension and size.
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More changes for archiving.
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Allow multiple filenames on command line when archiving.
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Remove unneded small block writes with libarchive.
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Make log_msg() add newline by default.
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Archiving support using Libarchive.
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Change all perror() calls to use logger.
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Make the config script a little verbose.
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Ability to specify output compressed pathname.
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Fix log level handling.
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Add a simple log facility.
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Refactor all printfs to use log facility.
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Cleanup pointer casting in code to use macros.
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== 2.4 Bugfix Release ==
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Add identifiers to error messages for clarity.
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Fix init of dedupe block size.
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@ -23,6 +140,7 @@ Reduce memory threshold for switching to Similarity based Deduplication.
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Avoid unnecessary re-hashing of 64-bit keys of the segment index.
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Update free memory computation to include cached buffers.
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Fix a potential rare corner case.
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== 2.3 Update Release ==
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Fix multiple crashes for some corner cases.
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Increase max block size for variable dedup block sizes greater than 16KB.
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@ -42,6 +160,7 @@ Remove an rpath entry meant for testing.
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Make default symbol visibility to hidden with explicit public visibility specified.
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Add missing static scope to a few more places.
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Make Pcompress functionality into a library - initial changes.
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== 2.2 Bugfix Release ==
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Update invalid environment variable handling to actually fail rather than auto-correct.
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Fix a crash with invalid PCOMPRESS_CHUNK_HASH_GLOBAL.
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@ -51,6 +170,7 @@ Correspond segment size to chunk size for Segmented Dedupe for better accuracy.
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Add a testcase for issue #10.
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Fix issue #10.
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Fix issue #8.
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== 2.1 Update Release ==
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Add more tests covering Segmented Global Dedupe.
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Fix some tests.
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@ -80,6 +200,7 @@ Use closer min-values sampling for improved segmented dedupe accuracy.
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Update proper checksum info in README.
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Fix sizing of similarity hash buffer.
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Tweak index size computation.
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== 2.0 Major Release ==
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Add test cases for Global Deduplication.
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Update documentation and code comments.
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@ -129,6 +250,7 @@ Fix location of sem_wait().
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More comments.
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Add check to disable Delta Compression with Global deduplication for now.
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Implement Global Deduplication.
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== 1.4.0 Update Release ==
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Update couple more test parameters with new crypto options.
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Update README and test cases with new crypto options.
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@ -168,6 +290,7 @@ Update xxhash comment.
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Reduce dedupe hash table collisions by half.
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Improve Deduplication performance by another 95%.
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Start sliding window scanning near minimum chunk size boundaries to avoid scanning whole chunk.
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== 1.3.0 Major Performance Release ==
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Fix return from parallel versions of Keccak_Hash() function.
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Add parallel versions of various checksums for single-segment, single-thread compression.
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@ -318,6 +441,7 @@ Portability to Debian based distros.
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Enable SSE4/AVX detection for AMD platforms (Bulldozer has both).
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Portable long long int print formatting to silence gcc 4.6 warnings.
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Add another example invocation.
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== 0.9.0 Major Release ==
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Implement HMAC verification for chunk header.
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Do not ask for decryption passwd twice.
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@ -330,6 +454,7 @@ Couple of minor fixes.
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Incorporate SSE/AVX optimized Intel SHA-256 implementation.
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Add support for runtime cpuid detection.
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Add support for SHA256 and SHA512 digests from OpenSSL library.
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== 0.8.6 Update Release ==
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Fix polynomial computation.
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Fix incorrect block length when doing fixed-block dedupe.
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@ -422,6 +547,7 @@ Fix buffer sizing for LZ4.
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Fix exit condition checks in LZ4 decompression wrapper.
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Fix buffer size calculation when decompressing LZ4, Zlib and Bzip2 compressed chunks.
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Slight SSE optimization in LZ4HC.
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== 0.6 Alpha bugfix release ==
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Fix crash when algo init function returns error.
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Fix LZFX error handling.
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