HISTORY of the LZMA SDK ----------------------- 9.18 beta 2010-11-02 ------------------------- - New small SFX module for installers (SfxSetup). 9.12 beta 2010-03-24 ------------------------- - The BUG in LZMA SDK 9.* was fixed: LZMA2 codec didn't work, if more than 10 threads were used (or more than 20 threads in some modes). 9.11 beta 2010-03-15 ------------------------- - PPMd compression method support 9.09 2009-12-12 ------------------------- - The bug was fixed: Utf16_To_Utf8 funstions in UTFConvert.cpp and 7zMain.c incorrectly converted surrogate characters (the code >= 0x10000) to UTF-8. - Some bugs were fixed 9.06 2009-08-17 ------------------------- - Some changes in ANSI-C 7z Decoder interfaces. 9.04 2009-05-30 ------------------------- - LZMA2 compression method support - xz format support 4.65 2009-02-03 ------------------------- - Some minor fixes 4.63 2008-12-31 ------------------------- - Some minor fixes 4.61 beta 2008-11-23 ------------------------- - The bug in ANSI-C LZMA Decoder was fixed: If encoded stream was corrupted, decoder could access memory outside of allocated range. - Some changes in ANSI-C 7z Decoder interfaces. - LZMA SDK is placed in the public domain. 4.60 beta 2008-08-19 ------------------------- - Some minor fixes. 4.59 beta 2008-08-13 ------------------------- - The bug was fixed: LZMA Encoder in fast compression mode could access memory outside of allocated range in some rare cases. 4.58 beta 2008-05-05 ------------------------- - ANSI-C LZMA Decoder was rewritten for speed optimizations. - ANSI-C LZMA Encoder was included to LZMA SDK. - C++ LZMA code now is just wrapper over ANSI-C code. 4.57 2007-12-12 ------------------------- - Speed optimizations in Ñ++ LZMA Decoder. - Small changes for more compatibility with some C/C++ compilers. 4.49 beta 2007-07-05 ------------------------- - .7z ANSI-C Decoder: - now it supports BCJ and BCJ2 filters - now it supports files larger than 4 GB. - now it supports "Last Write Time" field for files. - C++ code for .7z archives compressing/decompressing from 7-zip was included to LZMA SDK. 4.43 2006-06-04 ------------------------- - Small changes for more compatibility with some C/C++ compilers. 4.42 2006-05-15 ------------------------- - Small changes in .h files in ANSI-C version. 4.39 beta 2006-04-14 ------------------------- - The bug in versions 4.33b:4.38b was fixed: C++ version of LZMA encoder could not correctly compress files larger than 2 GB with HC4 match finder (-mfhc4). 4.37 beta 2005-04-06 ------------------------- - Fixes in C++ code: code could no be compiled if _NO_EXCEPTIONS was defined. 4.35 beta 2005-03-02 ------------------------- - The bug was fixed in C++ version of LZMA Decoder: If encoded stream was corrupted, decoder could access memory outside of allocated range. 4.34 beta 2006-02-27 ------------------------- - Compressing speed and memory requirements for compressing were increased - LZMA now can use only these match finders: HC4, BT2, BT3, BT4 4.32 2005-12-09 ------------------------- - Java version of LZMA SDK was included 4.30 2005-11-20 ------------------------- - Compression ratio was improved in -a2 mode - Speed optimizations for compressing in -a2 mode - -fb switch now supports values up to 273 - The bug in 7z_C (7zIn.c) was fixed: It used Alloc/Free functions from different memory pools. So if program used two memory pools, it worked incorrectly. - 7z_C: .7z format supporting was improved - LZMA# SDK (C#.NET version) was included 4.27 (Updated) 2005-09-21 ------------------------- - Some GUIDs/interfaces in C++ were changed. IStream.h: ISequentialInStream::Read now works as old ReadPart ISequentialOutStream::Write now works as old WritePart 4.27 2005-08-07 ------------------------- - The bug in LzmaDecodeSize.c was fixed: if _LZMA_IN_CB and _LZMA_OUT_READ were defined, decompressing worked incorrectly. 4.26 2005-08-05 ------------------------- - Fixes in 7z_C code and LzmaTest.c: previous versions could work incorrectly, if malloc(0) returns 0 4.23 2005-06-29 ------------------------- - Small fixes in C++ code 4.22 2005-06-10 ------------------------- - Small fixes 4.21 2005-06-08 ------------------------- - Interfaces for ANSI-C LZMA Decoder (LzmaDecode.c) were changed - New additional version of ANSI-C LZMA Decoder with zlib-like interface: - LzmaStateDecode.h - LzmaStateDecode.c - LzmaStateTest.c - ANSI-C LZMA Decoder now can decompress files larger than 4 GB 4.17 2005-04-18 ------------------------- - New example for RAM->RAM compressing/decompressing: LZMA + BCJ (filter for x86 code): - LzmaRam.h - LzmaRam.cpp - LzmaRamDecode.h - LzmaRamDecode.c - -f86 switch for lzma.exe 4.16 2005-03-29 ------------------------- - The bug was fixed in LzmaDecode.c (ANSI-C LZMA Decoder): If _LZMA_OUT_READ was defined, and if encoded stream was corrupted, decoder could access memory outside of allocated range. - Speed optimization of ANSI-C LZMA Decoder (now it's about 20% faster). Old version of LZMA Decoder now is in file LzmaDecodeSize.c. LzmaDecodeSize.c can provide slightly smaller code than LzmaDecode.c - Small speed optimization in LZMA C++ code - filter for SPARC's code was added - Simplified version of .7z ANSI-C Decoder was included 4.06 2004-09-05 ------------------------- - The bug in v4.05 was fixed: LZMA-Encoder didn't release output stream in some cases. 4.05 2004-08-25 ------------------------- - Source code of filters for x86, IA-64, ARM, ARM-Thumb and PowerPC code was included to SDK - Some internal minor changes 4.04 2004-07-28 ------------------------- - More compatibility with some C++ compilers 4.03 2004-06-18 ------------------------- - "Benchmark" command was added. It measures compressing and decompressing speed and shows rating values. Also it checks hardware errors. 4.02 2004-06-10 ------------------------- - C++ LZMA Encoder/Decoder code now is more portable and it can be compiled by GCC on Linux. 4.01 2004-02-15 ------------------------- - Some detection of data corruption was enabled. LzmaDecode.c / RangeDecoderReadByte ..... { rd->ExtraBytes = 1; return 0xFF; } 4.00 2004-02-13 ------------------------- - Original version of LZMA SDK HISTORY of the LZMA ------------------- 2001-2008: Improvements to LZMA compressing/decompressing code, keeping compatibility with original LZMA format 1996-2001: Development of LZMA compression format Some milestones: 2001-08-30: LZMA compression was added to 7-Zip 1999-01-02: First version of 7-Zip was released End of document