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Commit | Line | Data |
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fc9c1727 LCM |
1 | HISTORY of the LZMA SDK |
2 | ----------------------- | |
3 | ||
caf72ff3 LCM |
4 | 4.65 2009-02-03 |
5 | ------------------------- | |
6 | - Some minor fixes | |
fc9c1727 LCM |
7 | |
8 | ||
caf72ff3 LCM |
9 | 4.63 2008-12-31 |
10 | ------------------------- | |
11 | - Some minor fixes | |
fc9c1727 LCM |
12 | |
13 | ||
caf72ff3 LCM |
14 | 4.61 beta 2008-11-23 |
15 | ------------------------- | |
16 | - The bug in ANSI-C LZMA Decoder was fixed: | |
17 | If encoded stream was corrupted, decoder could access memory | |
18 | outside of allocated range. | |
19 | - Some changes in ANSI-C 7z Decoder interfaces. | |
20 | - LZMA SDK is placed in the public domain. | |
fc9c1727 LCM |
21 | |
22 | ||
caf72ff3 LCM |
23 | 4.60 beta 2008-08-19 |
24 | ------------------------- | |
25 | - Some minor fixes. | |
fc9c1727 LCM |
26 | |
27 | ||
caf72ff3 LCM |
28 | 4.59 beta 2008-08-13 |
29 | ------------------------- | |
30 | - The bug was fixed: | |
31 | LZMA Encoder in fast compression mode could access memory outside of | |
32 | allocated range in some rare cases. | |
fc9c1727 LCM |
33 | |
34 | ||
caf72ff3 LCM |
35 | 4.58 beta 2008-05-05 |
36 | ------------------------- | |
37 | - ANSI-C LZMA Decoder was rewritten for speed optimizations. | |
38 | - ANSI-C LZMA Encoder was included to LZMA SDK. | |
39 | - C++ LZMA code now is just wrapper over ANSI-C code. | |
fc9c1727 LCM |
40 | |
41 | ||
caf72ff3 LCM |
42 | 4.57 2007-12-12 |
43 | ------------------------- | |
fa82f871 | 44 | - Speed optimizations in Ñ++ LZMA Decoder. |
caf72ff3 | 45 | - Small changes for more compatibility with some C/C++ compilers. |
fc9c1727 LCM |
46 | |
47 | ||
caf72ff3 LCM |
48 | 4.49 beta 2007-07-05 |
49 | ------------------------- | |
50 | - .7z ANSI-C Decoder: | |
51 | - now it supports BCJ and BCJ2 filters | |
52 | - now it supports files larger than 4 GB. | |
53 | - now it supports "Last Write Time" field for files. | |
54 | - C++ code for .7z archives compressing/decompressing from 7-zip | |
55 | was included to LZMA SDK. | |
fc9c1727 LCM |
56 | |
57 | ||
caf72ff3 LCM |
58 | 4.43 2006-06-04 |
59 | ------------------------- | |
60 | - Small changes for more compatibility with some C/C++ compilers. | |
fc9c1727 LCM |
61 | |
62 | ||
caf72ff3 LCM |
63 | 4.42 2006-05-15 |
64 | ------------------------- | |
65 | - Small changes in .h files in ANSI-C version. | |
fc9c1727 LCM |
66 | |
67 | ||
caf72ff3 LCM |
68 | 4.39 beta 2006-04-14 |
69 | ------------------------- | |
70 | - The bug in versions 4.33b:4.38b was fixed: | |
71 | C++ version of LZMA encoder could not correctly compress | |
72 | files larger than 2 GB with HC4 match finder (-mfhc4). | |
fc9c1727 LCM |
73 | |
74 | ||
caf72ff3 LCM |
75 | 4.37 beta 2005-04-06 |
76 | ------------------------- | |
77 | - Fixes in C++ code: code could no be compiled if _NO_EXCEPTIONS was defined. | |
fc9c1727 LCM |
78 | |
79 | ||
caf72ff3 LCM |
80 | 4.35 beta 2005-03-02 |
81 | ------------------------- | |
82 | - The bug was fixed in C++ version of LZMA Decoder: | |
83 | If encoded stream was corrupted, decoder could access memory | |
84 | outside of allocated range. | |
fc9c1727 LCM |
85 | |
86 | ||
caf72ff3 LCM |
87 | 4.34 beta 2006-02-27 |
88 | ------------------------- | |
89 | - Compressing speed and memory requirements for compressing were increased | |
90 | - LZMA now can use only these match finders: HC4, BT2, BT3, BT4 | |
fc9c1727 LCM |
91 | |
92 | ||
caf72ff3 LCM |
93 | 4.32 2005-12-09 |
94 | ------------------------- | |
95 | - Java version of LZMA SDK was included | |
fc9c1727 LCM |
96 | |
97 | ||
caf72ff3 LCM |
98 | 4.30 2005-11-20 |
99 | ------------------------- | |
100 | - Compression ratio was improved in -a2 mode | |
101 | - Speed optimizations for compressing in -a2 mode | |
102 | - -fb switch now supports values up to 273 | |
103 | - The bug in 7z_C (7zIn.c) was fixed: | |
104 | It used Alloc/Free functions from different memory pools. | |
105 | So if program used two memory pools, it worked incorrectly. | |
106 | - 7z_C: .7z format supporting was improved | |
107 | - LZMA# SDK (C#.NET version) was included | |
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108 | |
109 | ||
caf72ff3 LCM |
110 | 4.27 (Updated) 2005-09-21 |
111 | ------------------------- | |
112 | - Some GUIDs/interfaces in C++ were changed. | |
113 | IStream.h: | |
114 | ISequentialInStream::Read now works as old ReadPart | |
115 | ISequentialOutStream::Write now works as old WritePart | |
fc9c1727 LCM |
116 | |
117 | ||
caf72ff3 LCM |
118 | 4.27 2005-08-07 |
119 | ------------------------- | |
120 | - The bug in LzmaDecodeSize.c was fixed: | |
121 | if _LZMA_IN_CB and _LZMA_OUT_READ were defined, | |
122 | decompressing worked incorrectly. | |
fc9c1727 LCM |
123 | |
124 | ||
caf72ff3 LCM |
125 | 4.26 2005-08-05 |
126 | ------------------------- | |
127 | - Fixes in 7z_C code and LzmaTest.c: | |
128 | previous versions could work incorrectly, | |
129 | if malloc(0) returns 0 | |
fc9c1727 LCM |
130 | |
131 | ||
caf72ff3 LCM |
132 | 4.23 2005-06-29 |
133 | ------------------------- | |
134 | - Small fixes in C++ code | |
fc9c1727 LCM |
135 | |
136 | ||
caf72ff3 LCM |
137 | 4.22 2005-06-10 |
138 | ------------------------- | |
139 | - Small fixes | |
fc9c1727 LCM |
140 | |
141 | ||
caf72ff3 LCM |
142 | 4.21 2005-06-08 |
143 | ------------------------- | |
144 | - Interfaces for ANSI-C LZMA Decoder (LzmaDecode.c) were changed | |
145 | - New additional version of ANSI-C LZMA Decoder with zlib-like interface: | |
146 | - LzmaStateDecode.h | |
147 | - LzmaStateDecode.c | |
148 | - LzmaStateTest.c | |
149 | - ANSI-C LZMA Decoder now can decompress files larger than 4 GB | |
fc9c1727 LCM |
150 | |
151 | ||
caf72ff3 LCM |
152 | 4.17 2005-04-18 |
153 | ------------------------- | |
154 | - New example for RAM->RAM compressing/decompressing: | |
155 | LZMA + BCJ (filter for x86 code): | |
156 | - LzmaRam.h | |
157 | - LzmaRam.cpp | |
158 | - LzmaRamDecode.h | |
159 | - LzmaRamDecode.c | |
160 | - -f86 switch for lzma.exe | |
fc9c1727 LCM |
161 | |
162 | ||
caf72ff3 LCM |
163 | 4.16 2005-03-29 |
164 | ------------------------- | |
165 | - The bug was fixed in LzmaDecode.c (ANSI-C LZMA Decoder): | |
166 | If _LZMA_OUT_READ was defined, and if encoded stream was corrupted, | |
167 | decoder could access memory outside of allocated range. | |
168 | - Speed optimization of ANSI-C LZMA Decoder (now it's about 20% faster). | |
169 | Old version of LZMA Decoder now is in file LzmaDecodeSize.c. | |
170 | LzmaDecodeSize.c can provide slightly smaller code than LzmaDecode.c | |
171 | - Small speed optimization in LZMA C++ code | |
172 | - filter for SPARC's code was added | |
173 | - Simplified version of .7z ANSI-C Decoder was included | |
fc9c1727 LCM |
174 | |
175 | ||
caf72ff3 LCM |
176 | 4.06 2004-09-05 |
177 | ------------------------- | |
178 | - The bug in v4.05 was fixed: | |
179 | LZMA-Encoder didn't release output stream in some cases. | |
180 | ||
181 | ||
182 | 4.05 2004-08-25 | |
183 | ------------------------- | |
184 | - Source code of filters for x86, IA-64, ARM, ARM-Thumb | |
185 | and PowerPC code was included to SDK | |
186 | - Some internal minor changes | |
187 | ||
188 | ||
189 | 4.04 2004-07-28 | |
190 | ------------------------- | |
191 | - More compatibility with some C++ compilers | |
192 | ||
193 | ||
194 | 4.03 2004-06-18 | |
195 | ------------------------- | |
196 | - "Benchmark" command was added. It measures compressing | |
197 | and decompressing speed and shows rating values. | |
198 | Also it checks hardware errors. | |
199 | ||
200 | ||
201 | 4.02 2004-06-10 | |
202 | ------------------------- | |
203 | - C++ LZMA Encoder/Decoder code now is more portable | |
204 | and it can be compiled by GCC on Linux. | |
205 | ||
206 | ||
207 | 4.01 2004-02-15 | |
208 | ------------------------- | |
209 | - Some detection of data corruption was enabled. | |
210 | LzmaDecode.c / RangeDecoderReadByte | |
211 | ..... | |
212 | { | |
213 | rd->ExtraBytes = 1; | |
214 | return 0xFF; | |
215 | } | |
216 | ||
217 | ||
218 | 4.00 2004-02-13 | |
219 | ------------------------- | |
220 | - Original version of LZMA SDK | |
fc9c1727 LCM |
221 | |
222 | ||
223 | ||
224 | HISTORY of the LZMA | |
225 | ------------------- | |
caf72ff3 LCM |
226 | 2001-2008: Improvements to LZMA compressing/decompressing code, |
227 | keeping compatibility with original LZMA format | |
fc9c1727 LCM |
228 | 1996-2001: Development of LZMA compression format |
229 | ||
230 | Some milestones: | |
231 | ||
232 | 2001-08-30: LZMA compression was added to 7-Zip | |
233 | 1999-01-02: First version of 7-Zip was released | |
234 | ||
235 | ||
236 | End of document |