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Diffstat (limited to 'contrib/zstd/CHANGELOG')
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diff --git a/contrib/zstd/CHANGELOG b/contrib/zstd/CHANGELOG new file mode 100644 index 0000000..0ed939a --- /dev/null +++ b/contrib/zstd/CHANGELOG @@ -0,0 +1,555 @@ +v1.4.5 +fix : Compression ratio regression on huge files (> 3 GB) using high levels (--ultra) and multithreading, by @terrelln +perf: Improved decompression speed: x64 : +10% (clang) / +5% (gcc); ARM : from +15% to +50%, depending on SoC, by @terrelln +perf: Automatically downsizes ZSTD_DCtx when too large for too long (#2069, by @bimbashreshta) +perf: Improved fast compression speed on aarch64 (#2040, ~+3%, by @caoyzh) +perf: Small level 1 compression speed gains (depending on compiler) +cli : New --patch-from command, create and apply patches from files, by @bimbashreshta +cli : New --filelist= : Provide a list of files to operate upon from a file +cli : -b -d command can now benchmark decompression on multiple files +cli : New --no-content-size command +cli : New --show-default-cparams information command +api : ZDICT_finalizeDictionary() is promoted to stable (#2111) +api : new experimental parameter ZSTD_d_stableOutBuffer (#2094) +build: Generate a single-file libzstd library (#2065, by @cwoffenden) +build: Relative includes no longer require -I compiler flags for zstd lib subdirs (#2103, by @felixhandte) +build: zstd now compiles cleanly under -pedantic (#2099) +build: zstd now compiles with make-4.3 +build: Support mingw cross-compilation from Linux, by @Ericson2314 +build: Meson multi-thread build fix on windows +build: Some misc icc fixes backed by new ci test on travis +misc: bitflip analyzer tool, by @felixhandte +misc: Extend largeNbDicts benchmark to compression +misc: Edit-distance match finder in contrib/ +doc : Improved beginner CONTRIBUTING.md docs +doc : New issue templates for zstd + +v1.4.4 +perf: Improved decompression speed, by > 10%, by @terrelln +perf: Better compression speed when re-using a context, by @felixhandte +perf: Fix compression ratio when compressing large files with small dictionary, by @senhuang42 +perf: zstd reference encoder can generate RLE blocks, by @bimbashrestha +perf: minor generic speed optimization, by @davidbolvansky +api: new ability to extract sequences from the parser for analysis, by @bimbashrestha +api: fixed decoding of magic-less frames, by @terrelln +api: fixed ZSTD_initCStream_advanced() performance with fast modes, reported by @QrczakMK +cli: Named pipes support, by @bimbashrestha +cli: short tar's extension support, by @stokito +cli: command --output-dir-flat= , generates target files into requested directory, by @senhuang42 +cli: commands --stream-size=# and --size-hint=#, by @nmagerko +cli: command --exclude-compressed, by @shashank0791 +cli: faster `-t` test mode +cli: improved some error messages, by @vangyzen +cli: fix command `-D dictionary` on Windows, reported by @artyompetrov +cli: fix rare deadlock condition within dictionary builder, by @terrelln +build: single-file decoder with emscripten compilation script, by @cwoffenden +build: fixed zlibWrapper compilation on Visual Studio, reported by @bluenlive +build: fixed deprecation warning for certain gcc version, reported by @jasonma163 +build: fix compilation on old gcc versions, by @cemeyer +build: improved installation directories for cmake script, by Dmitri Shubin +pack: modified pkgconfig, for better integration into openwrt, requested by @neheb +misc: Improved documentation : ZSTD_CLEVEL, DYNAMIC_BMI2, ZSTD_CDict, function deprecation, zstd format +misc: fixed educational decoder : accept larger literals section, and removed UNALIGNED() macro + +v1.4.3 +bug: Fix Dictionary Compression Ratio Regression by @cyan4973 (#1709) +bug: Fix Buffer Overflow in legacy v0.3 decompression by @felixhandte (#1722) +build: Add support for IAR C/C++ Compiler for Arm by @joseph0918 (#1705) + +v1.4.2 +bug: Fix bug in zstd-0.5 decoder by @terrelln (#1696) +bug: Fix seekable decompression in-memory API by @iburinoc (#1695) +misc: Validate blocks are smaller than size limit by @vivekmg (#1685) +misc: Restructure source files by @ephiepark (#1679) + +v1.4.1 +bug: Fix data corruption in niche use cases by @terrelln (#1659) +bug: Fuzz legacy modes, fix uncovered bugs by @terrelln (#1593, #1594, #1595) +bug: Fix out of bounds read by @terrelln (#1590) +perf: Improve decode speed by ~7% @mgrice (#1668) +perf: Slightly improved compression ratio of level 3 and 4 (ZSTD_dfast) by @cyan4973 (#1681) +perf: Slightly faster compression speed when re-using a context by @cyan4973 (#1658) +perf: Improve compression ratio for small windowLog by @cyan4973 (#1624) +perf: Faster compression speed in high compression mode for repetitive data by @terrelln (#1635) +api: Add parameter to generate smaller dictionaries by @tyler-tran (#1656) +cli: Recognize symlinks when built in C99 mode by @felixhandte (#1640) +cli: Expose cpu load indicator for each file on -vv mode by @ephiepark (#1631) +cli: Restrict read permissions on destination files by @chungy (#1644) +cli: zstdgrep: handle -f flag by @felixhandte (#1618) +cli: zstdcat: follow symlinks by @vejnar (#1604) +doc: Remove extra size limit on compressed blocks by @felixhandte (#1689) +doc: Fix typo by @yk-tanigawa (#1633) +doc: Improve documentation on streaming buffer sizes by @cyan4973 (#1629) +build: CMake: support building with LZ4 @leeyoung624 (#1626) +build: CMake: install zstdless and zstdgrep by @leeyoung624 (#1647) +build: CMake: respect existing uninstall target by @j301scott (#1619) +build: Make: skip multithread tests when built without support by @michaelforney (#1620) +build: Make: Fix examples/ test target by @sjnam (#1603) +build: Meson: rename options out of deprecated namespace by @lzutao (#1665) +build: Meson: fix build by @lzutao (#1602) +build: Visual Studio: don't export symbols in static lib by @scharan (#1650) +build: Visual Studio: fix linking by @absotively (#1639) +build: Fix MinGW-W64 build by @myzhang1029 (#1600) +misc: Expand decodecorpus coverage by @ephiepark (#1664) + +v1.4.0 +perf: Improve level 1 compression speed in most scenarios by 6% by @gbtucker and @terrelln +api: Move the advanced API, including all functions in the staging section, to the stable section +api: Make ZSTD_e_flush and ZSTD_e_end block for maximum forward progress +api: Rename ZSTD_CCtxParam_getParameter to ZSTD_CCtxParams_getParameter +api: Rename ZSTD_CCtxParam_setParameter to ZSTD_CCtxParams_setParameter +api: Don't export ZSTDMT functions from the shared library by default +api: Require ZSTD_MULTITHREAD to be defined to use ZSTDMT +api: Add ZSTD_decompressBound() to provide an upper bound on decompressed size by @shakeelrao +api: Fix ZSTD_decompressDCtx() corner cases with a dictionary +api: Move ZSTD_getDictID_*() functions to the stable section +api: Add ZSTD_c_literalCompressionMode flag to enable or disable literal compression by @terrelln +api: Allow compression parameters to be set when a dictionary is used +api: Allow setting parameters before or after ZSTD_CCtx_loadDictionary() is called +api: Fix ZSTD_estimateCStreamSize_usingCCtxParams() +api: Setting ZSTD_d_maxWindowLog to 0 means use the default +cli: Ensure that a dictionary is not used to compress itself by @shakeelrao +cli: Add --[no-]compress-literals flag to enable or disable literal compression +doc: Update the examples to use the advanced API +doc: Explain how to transition from old streaming functions to the advanced API in the header +build: Improve the Windows release packages +build: Improve CMake build by @hjmjohnson +build: Build fixes for FreeBSD by @lwhsu +build: Remove redundant warnings by @thatsafunnyname +build: Fix tests on OpenBSD by @bket +build: Extend fuzzer build system to work with the new clang engine +build: CMake now creates the libzstd.so.1 symlink +build: Improve Menson build by @lzutao +misc: Fix symbolic link detection on FreeBSD +misc: Use physical core count for -T0 on FreeBSD by @cemeyer +misc: Fix zstd --list on truncated files by @kostmo +misc: Improve logging in debug mode by @felixhandte +misc: Add CirrusCI tests by @lwhsu +misc: Optimize dictionary memory usage in corner cases +misc: Improve the dictionary builder on small or homogeneous data +misc: Fix spelling across the repo by @jsoref + +v1.3.8 +perf: better decompression speed on large files (+7%) and cold dictionaries (+15%) +perf: slightly better compression ratio at high compression modes +api : finalized advanced API, last stage before "stable" status +api : new --rsyncable mode, by @terrelln +api : support decompression of empty frames into NULL (used to be an error) (#1385) +build: new set of macros to build a minimal size decoder, by @felixhandte +build: fix compilation on MIPS32, reported by @clbr (#1441) +build: fix compilation with multiple -arch flags, by @ryandesign +build: highly upgraded meson build, by @lzutao +build: improved buck support, by @obelisk +build: fix cmake script : can create debug build, by @pitrou +build: Makefile : grep works on both colored consoles and systems without color support +build: fixed zstd-pgo, by @bmwiedemann +cli : support ZSTD_CLEVEL environment variable, by @yijinfb (#1423) +cli : --no-progress flag, preserving final summary (#1371), by @terrelln +cli : ensure destination file is not source file (#1422) +cli : clearer error messages, especially when input file not present +doc : clarified zstd_compression_format.md, by @ulikunitz +misc: fixed zstdgrep, returns 1 on failure, by @lzutao +misc: NEWS renamed as CHANGELOG, in accordance with fboss + +v1.3.7 +perf: slightly better decompression speed on clang (depending on hardware target) +fix : performance of dictionary compression for small input < 4 KB at levels 9 and 10 +build: no longer build backtrace by default in release mode; restrict further automatic mode +build: control backtrace support through build macro BACKTRACE +misc: added man pages for zstdless and zstdgrep, by @samrussell + +v1.3.6 +perf: much faster dictionary builder, by @jenniferliu +perf: faster dictionary compression on small data when using multiple contexts, by @felixhandte +perf: faster dictionary decompression when using a very large number of dictionaries simultaneously +cli : fix : does no longer overwrite destination when source does not exist (#1082) +cli : new command --adapt, for automatic compression level adaptation +api : fix : block api can be streamed with > 4 GB, reported by @catid +api : reduced ZSTD_DDict size by 2 KB +api : minimum negative compression level is defined, and can be queried using ZSTD_minCLevel(). +build: support Haiku target, by @korli +build: Read Legacy format is limited to v0.5+ by default. Can be changed at compile time with macro ZSTD_LEGACY_SUPPORT. +doc : zstd_compression_format.md updated to match wording in IETF RFC 8478 +misc: tests/paramgrill, a parameter optimizer, by @GeorgeLu97 + +v1.3.5 +perf: much faster dictionary compression, by @felixhandte +perf: small quality improvement for dictionary generation, by @terrelln +perf: slightly improved high compression levels (notably level 19) +mem : automatic memory release for long duration contexts +cli : fix : overlapLog can be manually set +cli : fix : decoding invalid lz4 frames +api : fix : performance degradation for dictionary compression when using advanced API, by @terrelln +api : change : clarify ZSTD_CCtx_reset() vs ZSTD_CCtx_resetParameters(), by @terrelln +build: select custom libzstd scope through control macros, by @GeorgeLu97 +build: OpenBSD patch, by @bket +build: make and make all are compatible with -j +doc : clarify zstd_compression_format.md, updated for IETF RFC process +misc: pzstd compatible with reproducible compilation, by @lamby + +v1.3.4 +perf: faster speed (especially decoding speed) on recent cpus (haswell+) +perf: much better performance associating --long with multi-threading, by @terrelln +perf: better compression at levels 13-15 +cli : asynchronous compression by default, for faster experience (use --single-thread for former behavior) +cli : smoother status report in multi-threading mode +cli : added command --fast=#, for faster compression modes +cli : fix crash when not overwriting existing files, by Pádraig Brady (@pixelb) +api : `nbThreads` becomes `nbWorkers` : 1 triggers asynchronous mode +api : compression levels can be negative, for even more speed +api : ZSTD_getFrameProgression() : get precise progress status of ZSTDMT anytime +api : ZSTDMT can accept new compression parameters during compression +api : implemented all advanced dictionary decompression prototypes +build: improved meson recipe, by Shawn Landden (@shawnl) +build: VS2017 scripts, by @HaydnTrigg +misc: all /contrib projects fixed +misc: added /contrib/docker script by @gyscos + +v1.3.3 +perf: faster zstd_opt strategy (levels 16-19) +fix : bug #944 : multithreading with shared ditionary and large data, reported by @gsliepen +cli : fix : content size written in header by default +cli : fix : improved LZ4 format support, by @felixhandte +cli : new : hidden command `-S`, to benchmark multiple files while generating one result per file +api : fix : support large skippable frames, by @terrelln +api : fix : streaming interface was adding a useless 3-bytes null block to small frames +api : change : when setting `pledgedSrcSize`, use `ZSTD_CONTENTSIZE_UNKNOWN` macro value to mean "unknown" +build: fix : compilation under rhel6 and centos6, reported by @pixelb +build: added `check` target + +v1.3.2 +new : long range mode, using --long command, by Stella Lau (@stellamplau) +new : ability to generate and decode magicless frames (#591) +changed : maximum nb of threads reduced to 200, to avoid address space exhaustion in 32-bits mode +fix : multi-threading compression works with custom allocators +fix : ZSTD_sizeof_CStream() was over-evaluating memory usage +fix : a rare compression bug when compression generates very large distances and bunch of other conditions (only possible at --ultra -22) +fix : 32-bits build can now decode large offsets (levels 21+) +cli : added LZ4 frame support by default, by Felix Handte (@felixhandte) +cli : improved --list output +cli : new : can split input file for dictionary training, using command -B# +cli : new : clean operation artefact on Ctrl-C interruption +cli : fix : do not change /dev/null permissions when using command -t with root access, reported by @mike155 (#851) +cli : fix : write file size in header in multiple-files mode +api : added macro ZSTD_COMPRESSBOUND() for static allocation +api : experimental : new advanced decompression API +api : fix : sizeof_CCtx() used to over-estimate +build: fix : no-multithread variant compiles without pool.c dependency, reported by Mitchell Blank Jr (@mitchblank) (#819) +build: better compatibility with reproducible builds, by Bernhard M. Wiedemann (@bmwiedemann) (#818) +example : added streaming_memory_usage +license : changed /examples license to BSD + GPLv2 +license : fix a few header files to reflect new license (#825) + +v1.3.1 +New license : BSD + GPLv2 +perf: substantially decreased memory usage in Multi-threading mode, thanks to reports by Tino Reichardt (@mcmilk) +perf: Multi-threading supports up to 256 threads. Cap at 256 when more are requested (#760) +cli : improved and fixed --list command, by @ib (#772) +cli : command -vV to list supported formats, by @ib (#771) +build : fixed binary variants, reported by @svenha (#788) +build : fix Visual compilation for non x86/x64 targets, reported by Greg Slazinski (@GregSlazinski) (#718) +API exp : breaking change : ZSTD_getframeHeader() provides more information +API exp : breaking change : pinned down values of error codes +doc : fixed huffman example, by Ulrich Kunitz (@ulikunitz) +new : contrib/adaptive-compression, I/O driven compression strength, by Paul Cruz (@paulcruz74) +new : contrib/long_distance_matching, statistics by Stella Lau (@stellamplau) +updated : contrib/linux-kernel, by Nick Terrell (@terrelln) + +v1.3.0 +cli : new : `--list` command, by Paul Cruz +cli : changed : xz/lzma support enabled by default +cli : changed : `-t *` continue processing list after a decompression error +API : added : ZSTD_versionString() +API : promoted to stable status : ZSTD_getFrameContentSize(), by Sean Purcell +API exp : new advanced API : ZSTD_compress_generic(), ZSTD_CCtx_setParameter() +API exp : new : API for static or external allocation : ZSTD_initStatic?Ctx() +API exp : added : ZSTD_decompressBegin_usingDDict(), requested by Guy Riddle (#700) +API exp : clarified memory estimation / measurement functions. +API exp : changed : strongest strategy renamed ZSTD_btultra, fastest strategy ZSTD_fast set to 1 +tools : decodecorpus can generate random dictionary-compressed samples, by Paul Cruz +new : contrib/seekable_format, demo and API, by Sean Purcell +changed : contrib/linux-kernel, updated version and license, by Nick Terrell + +v1.2.0 +cli : changed : Multithreading enabled by default (use target zstd-nomt or HAVE_THREAD=0 to disable) +cli : new : command -T0 means "detect and use nb of cores", by Sean Purcell +cli : new : zstdmt symlink hardwired to `zstd -T0` +cli : new : command --threads=# (#671) +cli : changed : cover dictionary builder by default, for improved quality, by Nick Terrell +cli : new : commands --train-cover and --train-legacy, to select dictionary algorithm and parameters +cli : experimental targets `zstd4` and `xzstd4`, with support for lz4 format, by Sean Purcell +cli : fix : does not output compressed data on console +cli : fix : ignore symbolic links unless --force specified, +API : breaking change : ZSTD_createCDict_advanced(), only use compressionParameters as argument +API : added : prototypes ZSTD_*_usingCDict_advanced(), for direct control over frameParameters. +API : improved: ZSTDMT_compressCCtx() reduced memory usage +API : fix : ZSTDMT_compressCCtx() now provides srcSize in header (#634) +API : fix : src size stored in frame header is controlled at end of frame +API : fix : enforced consistent rules for pledgedSrcSize==0 (#641) +API : fix : error code "GENERIC" replaced by "dstSizeTooSmall" when appropriate +build: improved cmake script, by @Majlen +build: enabled Multi-threading support for *BSD, by Baptiste Daroussin +tools: updated Paramgrill. Command -O# provides best parameters for sample and speed target. +new : contrib/linux-kernel version, by Nick Terrell + +v1.1.4 +cli : new : can compress in *.gz format, using --format=gzip command, by Przemyslaw Skibinski +cli : new : advanced benchmark command --priority=rt +cli : fix : write on sparse-enabled file systems in 32-bits mode, by @ds77 +cli : fix : --rm remains silent when input is stdin +cli : experimental : xzstd, with support for xz/lzma decoding, by Przemyslaw Skibinski +speed : improved decompression speed in streaming mode for single shot scenarios (+5%) +memory: DDict (decompression dictionary) memory usage down from 150 KB to 20 KB +arch: 32-bits variant able to generate and decode very long matches (>32 MB), by Sean Purcell +API : new : ZSTD_findFrameCompressedSize(), ZSTD_getFrameContentSize(), ZSTD_findDecompressedSize() +API : changed : dropped support of legacy versions <= v0.3 (can be changed by modifying ZSTD_LEGACY_SUPPORT value) +build : new: meson build system in contrib/meson, by Dima Krasner +build : improved cmake script, by @Majlen +build : added -Wformat-security flag, as recommended by Padraig Brady +doc : new : educational decoder, by Sean Purcell + +v1.1.3 +cli : zstd can decompress .gz files (can be disabled with `make zstd-nogz` or `make HAVE_ZLIB=0`) +cli : new : experimental target `make zstdmt`, with multi-threading support +cli : new : improved dictionary builder "cover" (experimental), by Nick Terrell, based on prior work by Giuseppe Ottaviano. +cli : new : advanced commands for detailed parameters, by Przemyslaw Skibinski +cli : fix zstdless on Mac OS-X, by Andrew Janke +cli : fix #232 "compress non-files" +dictBuilder : improved dictionary generation quality, thanks to Nick Terrell +API : new : lib/compress/ZSTDMT_compress.h multithreading API (experimental) +API : new : ZSTD_create?Dict_byReference(), requested by Bartosz Taudul +API : new : ZDICT_finalizeDictionary() +API : fix : ZSTD_initCStream_usingCDict() properly writes dictID into frame header, by Gregory Szorc (#511) +API : fix : all symbols properly exposed in libzstd, by Nick Terrell +build : support for Solaris target, by Przemyslaw Skibinski +doc : clarified specification, by Sean Purcell + +v1.1.2 +API : streaming : decompression : changed : automatic implicit reset when chain-decoding new frames without init +API : experimental : added : dictID retrieval functions, and ZSTD_initCStream_srcSize() +API : zbuff : changed : prototypes now generate deprecation warnings +lib : improved : faster decompression speed at ultra compression settings and 32-bits mode +lib : changed : only public ZSTD_ symbols are now exposed +lib : changed : reduced usage of stack memory +lib : fixed : several corner case bugs, by Nick Terrell +cli : new : gzstd, experimental version able to decode .gz files, by Przemyslaw Skibinski +cli : new : preserve file attributes +cli : new : added zstdless and zstdgrep tools +cli : fixed : status displays total amount decoded, even for file consisting of multiple frames (like pzstd) +cli : fixed : zstdcat +zlib_wrapper : added support for gz* functions, by Przemyslaw Skibinski +install : better compatibility with FreeBSD, by Dimitry Andric +source tree : changed : zbuff source files moved to lib/deprecated + +v1.1.1 +New : command -M#, --memory=, --memlimit=, --memlimit-decompress= to limit allowed memory consumption +New : doc/zstd_manual.html, by Przemyslaw Skibinski +Improved : slightly better compression ratio at --ultra levels (>= 20) +Improved : better memory usage when using streaming compression API, thanks to @Rogier-5 report +Added : API : ZSTD_initCStream_usingCDict(), ZSTD_initDStream_usingDDict() (experimental section) +Added : example/multiple_streaming_compression.c +Changed : zstd_errors.h is now installed within /include (and replaces errors_public.h) +Updated man page +Fixed : zstd-small, zstd-compress and zstd-decompress compilation targets + +v1.1.0 +New : contrib/pzstd, parallel version of zstd, by Nick Terrell +added : NetBSD install target (#338) +Improved : speed for batches of small files +Improved : speed of zlib wrapper, by Przemyslaw Skibinski +Changed : libzstd on Windows supports legacy formats, by Christophe Chevalier +Fixed : CLI -d output to stdout by default when input is stdin (#322) +Fixed : CLI correctly detects console on Mac OS-X +Fixed : CLI supports recursive mode `-r` on Mac OS-X +Fixed : Legacy decoders use unified error codes, reported by benrg (#341), fixed by Przemyslaw Skibinski +Fixed : compatibility with OpenBSD, reported by Juan Francisco Cantero Hurtado (#319) +Fixed : compatibility with Hurd, by Przemyslaw Skibinski (#365) +Fixed : zstd-pgo, reported by octoploid (#329) + +v1.0.0 +Change Licensing, all project is now BSD, Copyright Facebook +Small decompression speed improvement +API : Streaming API supports legacy format +API : ZDICT_getDictID(), ZSTD_sizeof_{CCtx, DCtx, CStream, DStream}(), ZSTD_setDStreamParameter() +CLI supports legacy formats v0.4+ +Fixed : compression fails on certain huge files, reported by Jesse McGrew +Enhanced documentation, by Przemyslaw Skibinski + +v0.8.1 +New streaming API +Changed : --ultra now enables levels beyond 19 +Changed : -i# now selects benchmark time in second +Fixed : ZSTD_compress* can now compress > 4 GB in a single pass, reported by Nick Terrell +Fixed : speed regression on specific patterns (#272) +Fixed : support for Z_SYNC_FLUSH, by Dmitry Krot (#291) +Fixed : ICC compilation, by Przemyslaw Skibinski + +v0.8.0 +Improved : better speed on clang and gcc -O2, thanks to Eric Biggers +New : Build on FreeBSD and DragonFly, thanks to JrMarino +Changed : modified API : ZSTD_compressEnd() +Fixed : legacy mode with ZSTD_HEAPMODE=0, by Christopher Bergqvist +Fixed : premature end of frame when zero-sized raw block, reported by Eric Biggers +Fixed : large dictionaries (> 384 KB), reported by Ilona Papava +Fixed : checksum correctly checked in single-pass mode +Fixed : combined --test amd --rm, reported by Andreas M. Nilsson +Modified : minor compression level adaptations +Updated : compression format specification to v0.2.0 +changed : zstd.h moved to /lib directory + +v0.7.5 +Transition version, supporting decoding of v0.8.x + +v0.7.4 +Added : homebrew for Mac, by Daniel Cade +Added : more examples +Fixed : segfault when using small dictionaries, reported by Felix Handte +Modified : default compression level for CLI is now 3 +Updated : specification, to v0.1.1 + +v0.7.3 +New : compression format specification +New : `--` separator, stating that all following arguments are file names. Suggested by Chip Turner. +New : `ZSTD_getDecompressedSize()` +New : OpenBSD target, by Juan Francisco Cantero Hurtado +New : `examples` directory +fixed : dictBuilder using HC levels, reported by Bartosz Taudul +fixed : legacy support from ZSTD_decompress_usingDDict(), reported by Felix Handte +fixed : multi-blocks decoding with intermediate uncompressed blocks, reported by Greg Slazinski +modified : removed "mem.h" and "error_public.h" dependencies from "zstd.h" (experimental section) +modified : legacy functions no longer need magic number + +v0.7.2 +fixed : ZSTD_decompressBlock() using multiple consecutive blocks. Reported by Greg Slazinski. +fixed : potential segfault on very large files (many gigabytes). Reported by Chip Turner. +fixed : CLI displays system error message when destination file cannot be created (#231). Reported by Chip Turner. + +v0.7.1 +fixed : ZBUFF_compressEnd() called multiple times with too small `dst` buffer, reported by Christophe Chevalier +fixed : dictBuilder fails if first sample is too small, reported by Руслан Ковалёв +fixed : corruption issue, reported by cj +modified : checksum enabled by default in command line mode + +v0.7.0 +New : Support for directory compression, using `-r`, thanks to Przemyslaw Skibinski +New : Command `--rm`, to remove source file after successful de/compression +New : Visual build scripts, by Christophe Chevalier +New : Support for Sparse File-systems (do not use space for zero-filled sectors) +New : Frame checksum support +New : Support pass-through mode (when using `-df`) +API : more efficient Dictionary API : `ZSTD_compress_usingCDict()`, `ZSTD_decompress_usingDDict()` +API : create dictionary files from custom content, by Giuseppe Ottaviano +API : support for custom malloc/free functions +New : controllable Dictionary ID +New : Support for skippable frames + +v0.6.1 +New : zlib wrapper API, thanks to Przemyslaw Skibinski +New : Ability to compile compressor / decompressor separately +Changed : new lib directory structure +Fixed : Legacy codec v0.5 compatible with dictionary decompression +Fixed : Decoder corruption error (#173) +Fixed : null-string roundtrip (#176) +New : benchmark mode can select directory as input +Experimental : midipix support, VMS support + +v0.6.0 +Stronger high compression modes, thanks to Przemyslaw Skibinski +API : ZSTD_getFrameParams() provides size of decompressed content +New : highest compression modes require `--ultra` command to fully unleash their capacity +Fixed : zstd cli return error code > 0 and removes dst file artifact when decompression fails, thanks to Chip Turner + +v0.5.1 +New : Optimal parsing => Very high compression modes, thanks to Przemyslaw Skibinski +Changed : Dictionary builder integrated into libzstd and zstd cli +Changed (!) : zstd cli now uses "multiple input files" as default mode. See `zstd -h`. +Fix : high compression modes for big-endian platforms +New : zstd cli : `-t` | `--test` command + +v0.5.0 +New : dictionary builder utility +Changed : streaming & dictionary API +Improved : better compression of small data + +v0.4.7 +Improved : small compression speed improvement in HC mode +Changed : `zstd_decompress.c` has ZSTD_LEGACY_SUPPORT to 0 by default +fix : bt search bug + +v0.4.6 +fix : fast compression mode on Windows +New : cmake configuration file, thanks to Artyom Dymchenko +Improved : high compression mode on repetitive data +New : block-level API +New : ZSTD_duplicateCCtx() + +v0.4.5 +new : -m/--multiple : compress/decompress multiple files + +v0.4.4 +Fixed : high compression modes for Windows 32 bits +new : external dictionary API extended to buffered mode and accessible through command line +new : windows DLL project, thanks to Christophe Chevalier + +v0.4.3 : +new : external dictionary API +new : zstd-frugal + +v0.4.2 : +Generic minor improvements for small blocks +Fixed : big-endian compatibility, by Peter Harris (#85) + +v0.4.1 +Fixed : ZSTD_LEGACY_SUPPORT=0 build mode (reported by Luben) +removed `zstd.c` + +v0.4.0 +Command line utility compatible with high compression levels +Removed zstdhc => merged into zstd +Added : ZBUFF API (see zstd_buffered.h) +Rolling buffer support + +v0.3.6 +small blocks params + +v0.3.5 +minor generic compression improvements + +v0.3.4 +Faster fast cLevels + +v0.3.3 +Small compression ratio improvement + +v0.3.2 +Fixed Visual Studio + +v0.3.1 : +Small compression ratio improvement + +v0.3 +HC mode : compression levels 2-26 + +v0.2.2 +Fix : Visual Studio 2013 & 2015 release compilation, by Christophe Chevalier + +v0.2.1 +Fix : Read errors, advanced fuzzer tests, by Hanno Böck + +v0.2.0 +**Breaking format change** +Faster decompression speed +Can still decode v0.1 format + +v0.1.3 +fix uninitialization warning, reported by Evan Nemerson + +v0.1.2 +frame concatenation support + +v0.1.1 +fix compression bug +detects write-flush errors + +v0.1.0 +first release |