7-Zip Extra history ------------------- 9.35 beta 2014-12-07 ------------------------------ - SFX modules were moved to LZMA SDK package. 9.34 alpha 2014-06-22 ------------------------------ - Minimum supported system now is Windows 2000 for EXE and DLL files. - all EXE and DLL files use msvcrt.dll. - 7zr.exe now support AES encryption. 9.18 2010-11-02 ------------------------------ - New small SFX module for installers. 9.17 2010-10-04 ------------------------------ - New 7-Zip plugin for FAR Manager x64. 9.10 2009-12-30 ------------------------------ - 7-Zip for installers now supports LZMA2. 9.09 2009-12-12 ------------------------------ - LZMA2 compression method support. - Some bugs were fixed. 4.65 2009-02-03 ------------------------------ - Some bugs were fixed. 4.38 beta 2006-04-13 ------------------------------ - SFX for installers now supports new properties in config file: Progress, Directory, ExecuteFile, ExecuteParameters. 4.34 beta 2006-02-27 ------------------------------ - ISetProperties::SetProperties: it's possible to specify desirable number of CPU threads: PROPVARIANT: name=L"mt", vt = VT_UI4, ulVal = NumberOfThreads If "mt" is not defined, 7za.dll will check number of processors in system to set number of desirable threads. Now 7za.dll can use: 2 threads for LZMA compressing N threads for BZip2 compressing 4 threads for BZip2 decompressing Other codecs use only one thread. Note: 7za.dll can use additional "small" threads with low CPU load. - It's possible to call ISetProperties::SetProperties to specify "mt" property for decoder. 4.33 beta 2006-02-05 ------------------------------ - Compressing speed and Memory requirements were increased. Default dictionary size was increased: Fastest: 64 KB, Fast: 1 MB, Normal: 4 MB, Max: 16 MB, Ultra: 64 MB. - 7z/LZMA now can use only these match finders: HC4, BT2, BT3, BT4 4.27 2005-09-21 ------------------------------ - Some GUIDs/interfaces were changed. IStream.h: ISequentialInStream::Read now works as old ReadPart ISequentialOutStream::Write now works as old WritePart