1HISTORY of the LZMA SDK 2----------------------- 3 49.38 beta 2015-01-03 5------------------------- 6- The BUG in 9.30-9.37 was fixed: 7 IArchiveGetRawProps interface was disabled for 7z archives. 8- The BUG in 9.26-9.36 was fixed: 9 Some code in CPP\7zip\Archive\7z\ worked correctly only under Windows. 10 11 129.36 beta 2014-12-26 13------------------------- 14- The BUG in command line version was fixed: 15 7-Zip created temporary archive in current folder during update archive 16 operation, if -w{Path} switch was not specified. 17 The fixed 7-Zip creates temporary archive in folder that contains updated archive. 18- The BUG in 9.33-9.35 was fixed: 19 7-Zip silently ignored file reading errors during 7z or gz archive creation, 20 and the created archive contained only part of file that was read before error. 21 The fixed 7-Zip stops archive creation and it reports about error. 22 23 249.35 beta 2014-12-07 25------------------------- 26- 7zr.exe now support AES encryption. 27- SFX mudules were added to LZMA SDK 28- Some bugs were fixed. 29 30 319.21 beta 2011-04-11 32------------------------- 33- New class FString for file names at file systems. 34- Speed optimization in CRC code for big-endian CPUs. 35- The BUG in Lzma2Dec.c was fixed: 36 Lzma2Decode function didn't work. 37 38 399.18 beta 2010-11-02 40------------------------- 41- New small SFX module for installers (SfxSetup). 42 43 449.12 beta 2010-03-24 45------------------------- 46- The BUG in LZMA SDK 9.* was fixed: LZMA2 codec didn't work, 47 if more than 10 threads were used (or more than 20 threads in some modes). 48 49 509.11 beta 2010-03-15 51------------------------- 52- PPMd compression method support 53 54 559.09 2009-12-12 56------------------------- 57- The bug was fixed: 58 Utf16_To_Utf8 funstions in UTFConvert.cpp and 7zMain.c 59 incorrectly converted surrogate characters (the code >= 0x10000) to UTF-8. 60- Some bugs were fixed 61 62 639.06 2009-08-17 64------------------------- 65- Some changes in ANSI-C 7z Decoder interfaces. 66 67 689.04 2009-05-30 69------------------------- 70- LZMA2 compression method support 71- xz format support 72 73 744.65 2009-02-03 75------------------------- 76- Some minor fixes 77 78 794.63 2008-12-31 80------------------------- 81- Some minor fixes 82 83 844.61 beta 2008-11-23 85------------------------- 86- The bug in ANSI-C LZMA Decoder was fixed: 87 If encoded stream was corrupted, decoder could access memory 88 outside of allocated range. 89- Some changes in ANSI-C 7z Decoder interfaces. 90- LZMA SDK is placed in the public domain. 91 92 934.60 beta 2008-08-19 94------------------------- 95- Some minor fixes. 96 97 984.59 beta 2008-08-13 99------------------------- 100- The bug was fixed: 101 LZMA Encoder in fast compression mode could access memory outside of 102 allocated range in some rare cases. 103 104 1054.58 beta 2008-05-05 106------------------------- 107- ANSI-C LZMA Decoder was rewritten for speed optimizations. 108- ANSI-C LZMA Encoder was included to LZMA SDK. 109- C++ LZMA code now is just wrapper over ANSI-C code. 110 111 1124.57 2007-12-12 113------------------------- 114- Speed optimizations in �++ LZMA Decoder. 115- Small changes for more compatibility with some C/C++ compilers. 116 117 1184.49 beta 2007-07-05 119------------------------- 120- .7z ANSI-C Decoder: 121 - now it supports BCJ and BCJ2 filters 122 - now it supports files larger than 4 GB. 123 - now it supports "Last Write Time" field for files. 124- C++ code for .7z archives compressing/decompressing from 7-zip 125 was included to LZMA SDK. 126 127 1284.43 2006-06-04 129------------------------- 130- Small changes for more compatibility with some C/C++ compilers. 131 132 1334.42 2006-05-15 134------------------------- 135- Small changes in .h files in ANSI-C version. 136 137 1384.39 beta 2006-04-14 139------------------------- 140- The bug in versions 4.33b:4.38b was fixed: 141 C++ version of LZMA encoder could not correctly compress 142 files larger than 2 GB with HC4 match finder (-mfhc4). 143 144 1454.37 beta 2005-04-06 146------------------------- 147- Fixes in C++ code: code could no be compiled if _NO_EXCEPTIONS was defined. 148 149 1504.35 beta 2005-03-02 151------------------------- 152- The bug was fixed in C++ version of LZMA Decoder: 153 If encoded stream was corrupted, decoder could access memory 154 outside of allocated range. 155 156 1574.34 beta 2006-02-27 158------------------------- 159- Compressing speed and memory requirements for compressing were increased 160- LZMA now can use only these match finders: HC4, BT2, BT3, BT4 161 162 1634.32 2005-12-09 164------------------------- 165- Java version of LZMA SDK was included 166 167 1684.30 2005-11-20 169------------------------- 170- Compression ratio was improved in -a2 mode 171- Speed optimizations for compressing in -a2 mode 172- -fb switch now supports values up to 273 173- The bug in 7z_C (7zIn.c) was fixed: 174 It used Alloc/Free functions from different memory pools. 175 So if program used two memory pools, it worked incorrectly. 176- 7z_C: .7z format supporting was improved 177- LZMA# SDK (C#.NET version) was included 178 179 1804.27 (Updated) 2005-09-21 181------------------------- 182- Some GUIDs/interfaces in C++ were changed. 183 IStream.h: 184 ISequentialInStream::Read now works as old ReadPart 185 ISequentialOutStream::Write now works as old WritePart 186 187 1884.27 2005-08-07 189------------------------- 190- The bug in LzmaDecodeSize.c was fixed: 191 if _LZMA_IN_CB and _LZMA_OUT_READ were defined, 192 decompressing worked incorrectly. 193 194 1954.26 2005-08-05 196------------------------- 197- Fixes in 7z_C code and LzmaTest.c: 198 previous versions could work incorrectly, 199 if malloc(0) returns 0 200 201 2024.23 2005-06-29 203------------------------- 204- Small fixes in C++ code 205 206 2074.22 2005-06-10 208------------------------- 209- Small fixes 210 211 2124.21 2005-06-08 213------------------------- 214- Interfaces for ANSI-C LZMA Decoder (LzmaDecode.c) were changed 215- New additional version of ANSI-C LZMA Decoder with zlib-like interface: 216 - LzmaStateDecode.h 217 - LzmaStateDecode.c 218 - LzmaStateTest.c 219- ANSI-C LZMA Decoder now can decompress files larger than 4 GB 220 221 2224.17 2005-04-18 223------------------------- 224- New example for RAM->RAM compressing/decompressing: 225 LZMA + BCJ (filter for x86 code): 226 - LzmaRam.h 227 - LzmaRam.cpp 228 - LzmaRamDecode.h 229 - LzmaRamDecode.c 230 - -f86 switch for lzma.exe 231 232 2334.16 2005-03-29 234------------------------- 235- The bug was fixed in LzmaDecode.c (ANSI-C LZMA Decoder): 236 If _LZMA_OUT_READ was defined, and if encoded stream was corrupted, 237 decoder could access memory outside of allocated range. 238- Speed optimization of ANSI-C LZMA Decoder (now it's about 20% faster). 239 Old version of LZMA Decoder now is in file LzmaDecodeSize.c. 240 LzmaDecodeSize.c can provide slightly smaller code than LzmaDecode.c 241- Small speed optimization in LZMA C++ code 242- filter for SPARC's code was added 243- Simplified version of .7z ANSI-C Decoder was included 244 245 2464.06 2004-09-05 247------------------------- 248- The bug in v4.05 was fixed: 249 LZMA-Encoder didn't release output stream in some cases. 250 251 2524.05 2004-08-25 253------------------------- 254- Source code of filters for x86, IA-64, ARM, ARM-Thumb 255 and PowerPC code was included to SDK 256- Some internal minor changes 257 258 2594.04 2004-07-28 260------------------------- 261- More compatibility with some C++ compilers 262 263 2644.03 2004-06-18 265------------------------- 266- "Benchmark" command was added. It measures compressing 267 and decompressing speed and shows rating values. 268 Also it checks hardware errors. 269 270 2714.02 2004-06-10 272------------------------- 273- C++ LZMA Encoder/Decoder code now is more portable 274 and it can be compiled by GCC on Linux. 275 276 2774.01 2004-02-15 278------------------------- 279- Some detection of data corruption was enabled. 280 LzmaDecode.c / RangeDecoderReadByte 281 ..... 282 { 283 rd->ExtraBytes = 1; 284 return 0xFF; 285 } 286 287 2884.00 2004-02-13 289------------------------- 290- Original version of LZMA SDK 291 292 293 294HISTORY of the LZMA 295------------------- 296 2001-2008: Improvements to LZMA compressing/decompressing code, 297 keeping compatibility with original LZMA format 298 1996-2001: Development of LZMA compression format 299 300 Some milestones: 301 302 2001-08-30: LZMA compression was added to 7-Zip 303 1999-01-02: First version of 7-Zip was released 304 305 306End of document 307