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Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +02001HISTORY of the LZMA SDK
2-----------------------
3
Stefan Reinauer5fe83802012-11-03 11:45:19 +000049.18 beta 2010-11-02
5-------------------------
6- New small SFX module for installers (SfxSetup).
7
8
99.12 beta 2010-03-24
10-------------------------
11- The BUG in LZMA SDK 9.* was fixed: LZMA2 codec didn't work,
12 if more than 10 threads were used (or more than 20 threads in some modes).
13
14
159.11 beta 2010-03-15
16-------------------------
17- PPMd compression method support
18
19
209.09 2009-12-12
21-------------------------
22- The bug was fixed:
23 Utf16_To_Utf8 funstions in UTFConvert.cpp and 7zMain.c
24 incorrectly converted surrogate characters (the code >= 0x10000) to UTF-8.
25- Some bugs were fixed
26
27
289.06 2009-08-17
29-------------------------
30- Some changes in ANSI-C 7z Decoder interfaces.
31
32
339.04 2009-05-30
34-------------------------
35- LZMA2 compression method support
36- xz format support
37
38
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200394.65 2009-02-03
40-------------------------
41- Some minor fixes
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +020042
43
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200444.63 2008-12-31
45-------------------------
46- Some minor fixes
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +020047
48
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200494.61 beta 2008-11-23
50-------------------------
51- The bug in ANSI-C LZMA Decoder was fixed:
52 If encoded stream was corrupted, decoder could access memory
53 outside of allocated range.
54- Some changes in ANSI-C 7z Decoder interfaces.
55- LZMA SDK is placed in the public domain.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +020056
57
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200584.60 beta 2008-08-19
59-------------------------
60- Some minor fixes.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +020061
62
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200634.59 beta 2008-08-13
64-------------------------
65- The bug was fixed:
66 LZMA Encoder in fast compression mode could access memory outside of
67 allocated range in some rare cases.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +020068
69
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200704.58 beta 2008-05-05
71-------------------------
72- ANSI-C LZMA Decoder was rewritten for speed optimizations.
73- ANSI-C LZMA Encoder was included to LZMA SDK.
74- C++ LZMA code now is just wrapper over ANSI-C code.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +020075
76
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200774.57 2007-12-12
78-------------------------
Albert ARIBAUDfa82f872011-08-04 18:45:45 +020079- Speed optimizations in Ñ++ LZMA Decoder.
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +020080- Small changes for more compatibility with some C/C++ compilers.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +020081
82
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200834.49 beta 2007-07-05
84-------------------------
85- .7z ANSI-C Decoder:
86 - now it supports BCJ and BCJ2 filters
87 - now it supports files larger than 4 GB.
88 - now it supports "Last Write Time" field for files.
89- C++ code for .7z archives compressing/decompressing from 7-zip
90 was included to LZMA SDK.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +020091
92
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200934.43 2006-06-04
94-------------------------
95- Small changes for more compatibility with some C/C++ compilers.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +020096
97
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200984.42 2006-05-15
99-------------------------
100- Small changes in .h files in ANSI-C version.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200101
102
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001034.39 beta 2006-04-14
104-------------------------
105- The bug in versions 4.33b:4.38b was fixed:
106 C++ version of LZMA encoder could not correctly compress
107 files larger than 2 GB with HC4 match finder (-mfhc4).
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200108
109
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001104.37 beta 2005-04-06
111-------------------------
112- Fixes in C++ code: code could no be compiled if _NO_EXCEPTIONS was defined.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200113
114
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001154.35 beta 2005-03-02
116-------------------------
117- The bug was fixed in C++ version of LZMA Decoder:
118 If encoded stream was corrupted, decoder could access memory
119 outside of allocated range.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200120
121
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001224.34 beta 2006-02-27
123-------------------------
124- Compressing speed and memory requirements for compressing were increased
125- LZMA now can use only these match finders: HC4, BT2, BT3, BT4
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200126
127
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001284.32 2005-12-09
129-------------------------
130- Java version of LZMA SDK was included
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200131
132
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001334.30 2005-11-20
134-------------------------
135- Compression ratio was improved in -a2 mode
136- Speed optimizations for compressing in -a2 mode
137- -fb switch now supports values up to 273
138- The bug in 7z_C (7zIn.c) was fixed:
139 It used Alloc/Free functions from different memory pools.
140 So if program used two memory pools, it worked incorrectly.
141- 7z_C: .7z format supporting was improved
142- LZMA# SDK (C#.NET version) was included
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200143
144
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001454.27 (Updated) 2005-09-21
146-------------------------
147- Some GUIDs/interfaces in C++ were changed.
148 IStream.h:
149 ISequentialInStream::Read now works as old ReadPart
150 ISequentialOutStream::Write now works as old WritePart
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200151
152
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001534.27 2005-08-07
154-------------------------
155- The bug in LzmaDecodeSize.c was fixed:
156 if _LZMA_IN_CB and _LZMA_OUT_READ were defined,
157 decompressing worked incorrectly.
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200158
159
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001604.26 2005-08-05
161-------------------------
162- Fixes in 7z_C code and LzmaTest.c:
163 previous versions could work incorrectly,
164 if malloc(0) returns 0
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200165
166
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001674.23 2005-06-29
168-------------------------
169- Small fixes in C++ code
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200170
171
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001724.22 2005-06-10
173-------------------------
174- Small fixes
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200175
176
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001774.21 2005-06-08
178-------------------------
179- Interfaces for ANSI-C LZMA Decoder (LzmaDecode.c) were changed
180- New additional version of ANSI-C LZMA Decoder with zlib-like interface:
181 - LzmaStateDecode.h
182 - LzmaStateDecode.c
183 - LzmaStateTest.c
184- ANSI-C LZMA Decoder now can decompress files larger than 4 GB
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200185
186
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001874.17 2005-04-18
188-------------------------
189- New example for RAM->RAM compressing/decompressing:
190 LZMA + BCJ (filter for x86 code):
191 - LzmaRam.h
192 - LzmaRam.cpp
193 - LzmaRamDecode.h
194 - LzmaRamDecode.c
195 - -f86 switch for lzma.exe
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200196
197
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02001984.16 2005-03-29
199-------------------------
200- The bug was fixed in LzmaDecode.c (ANSI-C LZMA Decoder):
201 If _LZMA_OUT_READ was defined, and if encoded stream was corrupted,
202 decoder could access memory outside of allocated range.
203- Speed optimization of ANSI-C LZMA Decoder (now it's about 20% faster).
204 Old version of LZMA Decoder now is in file LzmaDecodeSize.c.
205 LzmaDecodeSize.c can provide slightly smaller code than LzmaDecode.c
206- Small speed optimization in LZMA C++ code
207- filter for SPARC's code was added
208- Simplified version of .7z ANSI-C Decoder was included
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200209
210
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +02002114.06 2004-09-05
212-------------------------
213- The bug in v4.05 was fixed:
214 LZMA-Encoder didn't release output stream in some cases.
215
216
2174.05 2004-08-25
218-------------------------
219- Source code of filters for x86, IA-64, ARM, ARM-Thumb
220 and PowerPC code was included to SDK
221- Some internal minor changes
222
223
2244.04 2004-07-28
225-------------------------
226- More compatibility with some C++ compilers
227
228
2294.03 2004-06-18
230-------------------------
231- "Benchmark" command was added. It measures compressing
232 and decompressing speed and shows rating values.
233 Also it checks hardware errors.
234
235
2364.02 2004-06-10
237-------------------------
238- C++ LZMA Encoder/Decoder code now is more portable
239 and it can be compiled by GCC on Linux.
240
241
2424.01 2004-02-15
243-------------------------
244- Some detection of data corruption was enabled.
245 LzmaDecode.c / RangeDecoderReadByte
246 .....
247 {
248 rd->ExtraBytes = 1;
249 return 0xFF;
250 }
251
252
2534.00 2004-02-13
254-------------------------
255- Original version of LZMA SDK
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200256
257
258
259HISTORY of the LZMA
260-------------------
Luigi 'Comio' Mantellinicaf72ff2009-07-21 10:45:49 +0200261 2001-2008: Improvements to LZMA compressing/decompressing code,
262 keeping compatibility with original LZMA format
Luigi 'Comio' Mantellinifc9c1722008-09-08 02:46:13 +0200263 1996-2001: Development of LZMA compression format
264
265 Some milestones:
266
267 2001-08-30: LZMA compression was added to 7-Zip
268 1999-01-02: First version of 7-Zip was released
269
270
271End of document