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- 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
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