| 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 |
