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