[Update] 7-Zip 4.31 was released



7-Zip 4.31 was released.
date: 2005-12-04

7-Zip for 32-bit Windows:
size: 821 KB

7-Zip for 64-bit Windows x64:
size: 1104 KB

7-Zip for 64-bit Windows IA64:
size: 1394 KB

Download links redirect to download page on SourceForge.net

What's new after 7-Zip 4.30 beta:

- Small changes
- New localization: Basque

What's new after 7-Zip 4.23:

- Speed optimizations in LZMA maximum/ultra compressing.
- LZH format support (extracting only)
- 7-Zip can unpack CHM/HXS (MS HTML HELP) archives
- 7-Zip can unpack multivolume CAB archives
- LZMA now supports word size up to 273
- 7-Zip now reduces dictionary size for LZMA, if you compress files
smaller than specified dictionary size.
- 7-Zip now can use large memory pages:
GUI: 7-Zip File Manager / Options / Settings / Use large memory
Command line version: -slp switch.
This feature allows to increase speed of compressing.
But 7-Zip can make some pause at starting of compressing for
allocating large pages.
Also Task Manager doesn't show real memory usage of program, if
7-Zip uses large pages.
This feature works only on Windows 2003 / XP x64 / Vista.
Also you must have administrator's rights for your system.
Recommended size of RAM: 1 GB or more.
To install this feature you must run 7-Zip File Manager at least
close it and reboot system.
- Now 7-Zip deletes files to the Recycle Bin by default.
Shift+Delete deletes files permanently.
- 7-Zip now supports standard selection mode in the file list
- 7-Zip now supports right-click Drag and Drop in Explorer
- Command line version now supports short file names (like
- Files 7zFMn.exe, 7zGn.exe, 7-zipn, 7za.exe, 7zC.sfx were removed
from 7-zip package
- 7-Zip now uses uncompressed SFX: 7z.sfx
- Sfx modules 7z.sfx and 7zCon.sfx now use msvcrt.dll
- "Duplicate filename" collision problem between names with
ligatures was fixed.
- Some bugs were fixed
- New localizations: Basque, Ido, Tatarish

Please use 7-Zip forums for all common questions:


-- Igor Pavlov http://www.7-zip.org Compression Software


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