HISTORY of the 7-Zip -------------------- 4.57 beta 2007-12-06 ------------------------- - The BUG in command line version was fixed: -up3 switch could work incorrectly. 4.56 beta 2007-10-24 ------------------------- - Some bugs were fixed. 4.55 beta 2007-09-05 ------------------------- - Some bugs were fixed. 4.54 beta 2007-09-04 ------------------------- - Decompression speed was increased. 4.53 beta 2007-08-27 ------------------------- - "Test" and "Info" buttons now work for open archives. - The bug in 7-Zip 4.48 - 4.52 beta was fixed: 7-Zip could create .ZIP archives with broken files. - Some bugs were fixed. 4.52 beta 2007-08-03 ------------------------- - 7-Zip now can unpack Compound files (msi, doc, ...). - Some bugs were fixed. 4.51 beta 2007-07-25 ------------------------- - Bug was fixed: 7-Zip 4.50 beta could not open some .7z archives. 4.50 beta 2007-07-24 ------------------------- - New switch for command line version: -ssc[-] enables/disables case-sensitive mode for file names. - Speed optimizations for AES encryption. - Some bugs were fixed. 4.49 beta 2007-07-11 ------------------------- - 7-Zip now can unpack WIM archives. - 7-Zip now replaces incorrect characters in filenames during extracting. 4.48 beta 2007-06-26 ------------------------- - Encryption strength for .7z format was increased. Now it uses random initialization vectors. - Some bugs were fixed. 4.47 beta 2007-05-27 ------------------------- - Bugs of 7-Zip 4.46 beta were fixed: BZip2 could work incorrectly. 4.46 beta 2007-05-25 ------------------------- - New fast compression mode for Deflate method in Zip and GZip. - New "Compress shared files" option in GUI and -ssw switch. - Some bugs were fixed. - New localization: Norwegian Nynorsk. 4.45 beta 2007-04-17 ------------------------- - Now it's possible to specify the size of solid block and the number of CPU threads in "Add to archive" dialog box. - Default dictionary size was increased: Normal: 16 MB, Max: 32 MB. - Speed optimizations. - Benchmark was improved (new "b" command in command line version). - The number of DLL files was reduced. - Now it's possible to associate 7-zip with combined types like .tbz2 - switch -mhcf=off is not supported now. - If -t{Type} switch is not specified, 7-Zip now uses extension of archive to detect the type of archive. - Some bugs were fixed. - New localization: Welsh. 4.44 beta 2007-01-20 ------------------------- - Speed optimizations for LZMA, Deflate, BZip2 and unRAR. - 7-Zip now supports file pathnames longer than 260 characters. - Some bugs were fixed. - New localizations: Bangla, Bashkir, Nepali. 4.43 beta 2006-09-15 ------------------------- - 7-Zip now can use multi-threading mode for compressing to .ZIP archives. - ZIP format supporting was improved. - 7-Zip now supports WinZip-compatible AES-256 encryption for .ZIP archives. - New context menu items for .ZIP archives creating. - 7-Zip now uses order list (list of extensions) for files sorting for compressing to .7z archives. It can slightly increase compression ratio in some cases. - 7-Zip now restores modification time of folders during .7z archives extracting. - Some bugs were fixed. - New localizations: Armenian, Marathi. 4.42 2006-05-14 ------------------------- - 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. - BZip2 compressing / decompressing now can work in multi-threading mode - Multi-threading mode now is default for multi-processor systems - 64-bit version now supports 1 GB dictionary - 7z/LZMA now can use only these match finders: HC4, BT2, BT3, BT4 - Compression ratio in Zip/GZip/Deflate in Ultra mode was increased - 7-Zip now can unpack ISO archives and some installers created by NSIS - Optional "Flat View" mode in 7-Zip File Manager - 7-Zip File Manager now can calculate CRC checksums for files - -x switch with relative paths now affects files specified with absolute paths - New switch for 7za.exe (console version): -slt. "l" (list) command with -slt shows technical information for archive. - New switch: -scs{WIN|DOS|UTF-8} specifies charset for list files. Default charset for list files is UTF-8 now. - Some bugs were fixed - New localizations: Albanian, Kurdish 4.32 2005-12-09 ------------------------- - Bug was fixed: 7-Zip 4.31 didn't work in Windows 95 4.31 2005-12-04 ------------------------- - Small changes - New localization: Basque 4.30 beta 2005-11-18 ------------------------- - 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 - Speed optimizations in LZMA maximum/ultra compressing. - 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 pages. 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 once, close it and reboot system. - Some bugs were fixed 4.29 beta 2005-09-28 ------------------------- - Bug was fixed: 7-Zip 4.28 beta worked incorrectly in Windows 95/98/Me 4.28 beta 2005-09-27 ------------------------- - Bug was fixed: 7-Zip 4.27 beta created incorrect multivolume archives. - "Duplicate filename" collision problem between names with ligatures was fixed. 4.27 beta 2005-09-21 ------------------------- - 7-Zip can unpack CHM/HXS (MS HTML HELP) archives - 7-Zip can unpack multivolume CAB archives - Now 7-Zip deletes files to the Recycle Bin by default. Shift+Delete deletes files permanently. - Some bugs were fixed - New localization: Tatarish 4.26 beta 2005-08-05 ------------------------- - LZH format support (extracting only) - Some bugs were fixed - New localization: Ido 4.25 beta 2005-07-31 ------------------------- - 7-Zip now doesn't interrupt the compressing when it can not find specified file as in version 4.24 beta. It just shows warning. - 7-Zip now supports standard selection mode in the file list - Some bugs were fixed 4.24 beta 2005-07-06 ------------------------- - 7-Zip now supports right-click Drag and Drop in Explorer - Command line version now supports short file names (like FILENA~1.TXT) - If there are no wildcard names and there is no -r switch in command line, 7-Zip now checks that specified files exist on disk before compressing. - Some bugs were fixed 4.23 2005-06-29 ------------------------- - Drag and Drop support - 7-Zip File Manager now can copy files from one archive to another - Some bugs were fixed - New localizations: Extremaduran, Malay 4.20 2005-05-30 ------------------------- - No changes 4.19 beta 2005-05-21 ------------------------- - BZip2 code was rewritten. Now it supports 3 modes: Normal, Maximum and Ultra. In Normal mode it compresses almost as original BZip2 compressor. Compression ratio in Maximum and Ultra modes is 1-3% better for some files, but Maximum Mode is about 3 times slower and Ultra Mode is about 8 times slower than Normal mode. - Console version now prints all messages to stdout by default, and if -so switch is specified, 7-Zip prints messages to stderr. - Some bugs were fixed - New localizations: Azeri, Georgian 4.18 beta 2005-04-19 ------------------------- - Bug in v4.17 beta was fixed: 7-Zip File Manager could crash after some operations with archives 4.17 beta 2005-04-18 ------------------------- - To increase protection from viruses, 7-Zip now does not open files with more than 4 continuous spaces in the name. And 7-Zip changes such long spaces in name to " ... " in the file list. - Code size optimization - Some files were moved from main package to extra package: - Plugin for FAR Manager - SFX modules for installers (7zS.sfx and 7zSD.sfx) - New localizations: Asturian, Indonesian 4.16 beta 2005-03-29 ------------------------- - Speed optimization (5%) for 7z / LZMA - 7za.exe now supports .Z archives - -r- switch in command line now is default for all commands - Some bugs were fixed - New localization: Uzbek 4.15 beta 2005-01-25 ------------------------- - Z format supporting (extracting only) - 7-Zip now can extract ZIP archives compressed with "Shrink" method - 7-Zip now doesn't interrupt the compressing when it can not open file. 7-Zip just skips that file and shows warning. - Some bugs were fixed - New localization: Frisian 4.14 beta 2005-01-11 ------------------------- - 7-Zip installer was created with NSIS. Now it installs 7-Zip for all users (under Windows 2000/XP). - Now 7-Zip can create multivolume archives (switch -v for command line) - Some bugs were fixed - New localizations: Breton, Farsi 4.13 beta 2004-12-14 ------------------------- - Switch "--" stops switches parsing - Some bugs were fixed 4.12 beta 2004-11-18 ------------------------- - Bug in v4.11 beta was fixed: 7-Zip created incorrect ZIP archives if file size was from 3.75 GB to 4 GB. 4.11 beta 2004-11-16 ------------------------- - 7-Zip now shows file names during compressing/decompressing - 7-Zip now supports Zip64 extension of ZIP format. So now it's possible to compress files bigger than 4 GB to ZIP archives. - Some bugs were fixed - New localization: Galician 4.10 beta 2004-10-21 ------------------------- - Bugs in v4.0* were fixed: - Some commands in command line with "-r" switch worked incorrectly, so 7-zip could skip some files during compressing - Some other bugs were fixed - Small internal changes 4.09 beta 2004-10-05 ------------------------- - Bugs in v4.0* were fixed: - Renaming inside archives didn't work or worked incorrectly - GUI SFX didn't show extracting dialog at start - Small fixes in 7-Zip GUI (7zG.exe) 4.08 beta 2004-10-04 ------------------------- - Bug in installer for v4.07 was fixed: when rebooting is required, it rebooted without asking user - Small fixes in 7-Zip GUI (7zG.exe) 4.07 beta 2004-10-03 ------------------------- - Big amount of code was changed in this beta version. So don't use it for important data compressing. And test archive after compressing. - Unified command line interface to GUI and console versions - 7-Zip now can extract or test several archives in one command - 7-Zip now doesn't interrupt the compressing when file is locked by other application. 7-Zip just skips that file and shows warning. Note: previous versions of 7-Zip had bug, so they can not unpack non-solid and some solid 7z archives with such skipped files. - Command line interface was changed: - now it's possible to use absolute pathnames - syntax simplification: was: 7z a a Folder1\* Folder2\* -r now: 7z a a Folder1 Folder2 - now it's possible to use complex wildcard commands, like *\*111*\* - More smart detection of archive type for files with unusual file name extensions - Supporting for RAR archives with encrypted headers - CPIO format supporting was improved - For GZip and BZip2 formats you can: - Compress from stdin (-si switch) - Compress to stdout (-so switch) - Extract to stdout (-so switch) - 7-Zip File Manager: - Split and Combine commands - new list view options: Full row select, Show grid lines - Internal reconstruction - Some bugs were fixed - New localizations: Friulian, Macedonian, Mongolian, Tamil, Thai 3.13 2003-12-11 ------------------------- - Some small bugs were fixed 3.12 2003-12-10 ------------------------- - Now you can select compression method, dictionary size and word size in "Add to archive" dialog box. Also it shows memory usage. - 7-Zip File Manager now contains toolbars. - New "Benchmark" command in 7-Zip File Manager. It measures compressing and decompressing speeds and shows rating values. - Some bugs were fixed. 3.11 2003-10-06 ------------------------- - 7-zip now use limitations for solid block size for increasing the speed of random file decompressing: - in Store mode: 0 B - in Fast mode: 16 MB - in Normal mode: 256 MB - in Maximum mode: 1 GB - in Ultra mode: 4 GB - 7z.exe, 7za.exe and SFX modules now support Unicode file names under Windows NT/2000/XP/2003. 7zn.exe and 7zan.exe were removed from package. - Some bugs were fixed - New localization: Afrikaans 3.10 2003-09-27 ------------------------- - Drag-and-Drop from external application - GUI version (7zG.exe) can compress files with absolute paths - Compression dialog doesn't suggest bzip2 and gzip2 types when there are more than one selected file - Optional auto renaming for existing files during extraction in command line version (-aot switch). - Some bugs were fixed 3.09.02 2003-09-20 ------------------------- - Optional limitation for solid block size for increasing the speed of random file decompressing (-ms switch) 3.09.01 beta 2003-09-06 ------------------------- - Automatic compression filter for executable files: dll, exe, ocx, sfx, sys, (-mf switch) - Compression levels in 7z now are: - Fast: 32 KB dictionary, BCJ filter - Normal: 2 MB dictionary, BCJ filter - Maximum: 8 MB dictionary, BCJ filter, max settings - Ultra: 32 MB dictionary, BCJ2 filter, max settings - Updating solid 7z archives now is supported, if it doesn't require repacking solid blocks - -mhcf switch for 7z format now is default - Some bugs were fixed 3.08.04 beta 2003-08-24 ------------------------- - Favorites menu in 7-Zip File Manager - Some bugs were fixed 3.08.03 beta 2003-08-21 ------------------------- - Automatic adding of extension to archive name in Compress Dialog - Some bugs in previous 3.08.* versions were fixed: - Storing columns width inside archives in File Manager - Opening archive inside archive - Quotes in list files in console version 3.08.02 beta 2003-08-20 ------------------------- - Some bugs were fixed 3.08 beta 2003-08-19 ------------------------- - Compress dialog: - Supporting fast compressing mode (-mx=1 switch) - Multi-threading option for Multi-Processor systems or Pentium 4 with Hyper-Threading - Encrypt file names option - New context menu items: - Extract here - Extract to - Compress and email - Internal reconstruction, registry using was reduced - New localization: Esperanto 2.30 Beta 32 2003-05-15 ------------------------- - New features in compressing / decompressing window. - "Show password" option. - Some other small changes. - New localization: Valencian. 2.30 Beta 31 2003-04-29 ------------------------- - Some bugs were fixed. 2.30 Beta 30 2003-04-19 ------------------------- - 7-Zip File Manager: - Showing .. item. - 1/2 Panels mode switching (F9). - Supporting Bzip2 compression in ZIP archives. - Some bugs were fixed. - Some optimization recompiling for reducing code size. 2.30 Beta 29 2003-04-07 ------------------------- - 7-Zip File Manager: - "7-Zip" and "System" submenus in "Files" menu. - Path history and "Browse" button in "Copy" dialog. - RAR supporting was improved. - Some bugs were fixed. - Small changes in LZMA code. - New localizations: Hebrew, Vietnamese. 2.30 Beta 28 2003-02-16 ------------------------- - Some bugs were fixed: - Updating 7z archives that are larger than 4 GB. - Using anti-items in 7z format. - Compressing empty files with password to zip format. - In max mode 7z now uses 8 MB dictionary instead of 4 MB. - 7-Zip File Manager: - Supporting file comments: Ctrl-Z. - New key alias for folder bookmarks: [Shift]+Alt+Number. 2.30 Beta 27 2003-01-24 ------------------------- - Two BUGs in two previous beta versions (Beta 25 and Beta 26) were fixed: 1. Incorrect compressing to non-solid 7z archive when files have some very big sizes: 4 GB, 8 GB, 12 GB, 16 GB, ... 2. Incorrect percent showing in 7z compressing when files are bigger than 4 GB. - Supporting multivolume RAR and SPLIT archives. - Supporting DEB archives. - Supporting old version of CPIO format. - Some bugs were fixed. - New localizations: Korean, Swedish. 2.30 Beta 26 2003-01-12 ------------------------- - Supporting Deflate64 method in Zip archives. - Supporting Rar 1.50 archives. - Some bugs were fixed. 2.30 Beta 25 2003-01-02 ------------------------- - Encryption feature for 7z format (AES-256). - New optional archive header compressing mode (-mhcf). - Archive headers now always are compressed with LZMA method. - Updating non-solid 7z archives without -ms=off now is allowed. - Folder creating and item renaming inside archive now is supported. - Supporting encrypted Rar3 archives. - Supporting Unicode names in Rar3 archives. - Some bugs were fixed. - New localizations: Lithuanian, Voro. 2.30 Beta 24 2002-11-01 ------------------------- - Some internal reconstructions. - -m switch syntax was slightly changed. - Some bugs were fixed. - New localizations: Catalan, Norwegian, Romanian. 2.30 Beta 23 2002-09-07 ------------------------- - Encryption feature for zip format. - Percent indicating for some operations. - Some bugs were fixed. 2.30 Beta 22 2002-08-31 ------------------------- - New program: 7-Zip File Manager. - Command line version now doesn't allow absolute paths for compressing files. - New localizations: Belarusian, Greek. - Bug in FAR plugin was fixed: Incorrect updating when archive has no explicit directory items for file items. - Some bugs were fixed. 2.30 Beta 21 2002-07-08 ------------------------- - RAM requirements for LZMA (7z) compression were reduced. - Small bug in FAR plugin was fixed. 2.30 Beta 20 2002-07-01 ------------------------- - RAM requirements for LZMA (7z) decompression were reduced. - New localization: Turkish. - Some bugs were fixed. 2.30 Beta 19 2002-04-11 ------------------------- - Supporting RAR 3.0 archives. - New localizations: Danish, Ukrainian. 2.30 Beta 18 2002-03-25 ------------------------- - Compressing speed in 7z format was slightly increased. - New localizations: Estonian, Finnish. - Some bugs were fixed. 2.30 Beta 17 2002-03-03 ------------------------- - Supporting ARJ archives. - New localization: Chinese Simplified. 2.30 Beta 16 2002-02-24 ------------------------- - Supporting RPM and CPIO archives. - New fast compression mode for LZMA: -m0a=0. - New match finders for LZMA: bt4b, hc3, hc4. - Some bugs were fixed. 2.30 Beta 15 2002-02-17 ------------------------- - Compression ratio in 7z was slightly improved. - New localization: Dutch. 2.30 Beta 14 2002-02-10 ------------------------- - Speed optimization for multiprocessor computers (-mmt switch). - New localizations: Czech, Japanese, Polish. - Some bugs were fixed. 2.30 Beta 13 2002-01-31 ------------------------- - New SFX module for installers. - New match finder for LZMA: bt3. - New localizations: Portuguese, Portuguese Brazil, Serbo-Croatian. - Some bugs were fixed. 2.30 Beta 12 2002-01-16 ------------------------- - Bug was fixed: memory leak in Beta 11. - New localization: Hungarian. 2.30 Beta 11 2002-01-15 ------------------------- - Archive testing feature for GUI version. - Now 7-Zip can use more than 256 MB of RAM in all Windows versions. - New localizations: Bulgarian, Chinese Traditional, Latvian, Slovak. - Some bugs were fixed. 2.30 Beta 10 2002-01-11 ------------------------- - Bugs were fixed: - Updating 7z archives in Beta 8 and 9 didn't work. - Unicode version in Beta 9 didn't work in Windows NT4. - Some other bugs were fixed. - New localizations: Arabic, French, Italian, Slovenian, Spanish. 2.30 Beta 9 2002-01-08 ------------------------- - Program localization: English, German, Russian. - Additional optimized versions of programs for Windows NT4/2000/XP. - Two new match finders for LZMA: pat3h and pat4h. - Some bugs were fixed. 2.30 Beta 8 2001-12-21 ------------------------- - 7-Zip now supports some zip archives that were not supported by previous versions. - 7-Zip now supports new state (-uw switch) for cases when 7-Zip can not detect whether file is newer or the same. - Supporting anti-items in 7z format for incremental update (-u with action #3). - Some bugs were fixed. 2.30 Beta 7 2001-11-04 ------------------------- - BCJ2: new converter for x86 code. - Supporting tar archives with very long file names (GNU extension to 'tar' format). - Supporting multistream coders in 7z (-mb switch). - More compressing parameters for zip and gzip in console version (-m switch). - Solid compressing option in Windows version. - Compressing parameters option in Windows version. - Auto renaming existing files feature for extracting files. - Overwrite mode switch for extracting (-ao). - Some bugs were fixed. 2.30 Beta 6 2001-10-13 ------------------------- - Supporting 7z format in MultiArc plugin for FAR Manager. - Some bugs were fixed. 2.30 Beta 5 2001-10-02 ------------------------- - Creating SFX archives from explorer. - 7zWin.sfx: Windows version of SFX module. - Auto adding .exe extension to SFX archive name. - 7za.exe now supports 7z, bzip2, gzip, tar, zip. - Some bugs were fixed. 2.30 Beta 4 2001-09-15 ------------------------- - Self extract capability for 7z format. - 7z archive format is default for 7z.exe and 7za.exe. - 7z in default mode now uses bt234 match finder and solid compression. - 7z in maximum mode (-mx) now uses 4MB dictionary. 2.30 Beta 3 2001-09-10 ------------------------- - Bug was fixed: decompressing .7z solid archives containing empty files. - new 7za.exe: standalone command line version (only for 7z format). - Speed of compressing to Deflate format (zip, gzip) was slightly increased. 2.30 Beta 2 2001-08-30 ------------------------- - Supporting the new 7z format with high compression ratio. - -bd (Disable percentage indicator) switch in console version. - Bug in console version was fixed: previous versions incorrectly execute compression commands with non-recursive wildcards in combination with subfolders. - Some other bugs were fixed. 2.30 Beta 1 2001-05-07 ------------------------- - Speed of reading of archive contents was increased. - Bug was fixed: incorrect showing file names with national charsets in some zip archives. - Now it is possible to compress files larger than 4GB to GZip archives. 2.24 2001-03-21 ------------------------- - Bugs in GZip and Cab decoders were fixed. 2.23 2001-03-04 ------------------------- - Opening archive items in Explorer. - Context menu for archive items in Explorer. - Automatic adding extension to archive name in console version. - Some bugs were fixed. 2.22 2001-01-21 ------------------------- - Supporting Zip archives containing more than 65535 files. - Speed of Plugin for Explorer was increased. - Searching start position of archive now is limited by first 1MB part of file. - Some bugs were fixed. - Packet now doesn't contain 7zip.exe, far7zip.reg and far7zip2.reg files. There is new far7z.reg file. 2.21 2000-12-21 ------------------------- - FAR Plugin was improved: - Showing process box during opening archives. - Viewing properties of file by Ctrl-A. - Alt-F6 in archive now immediately extracts selected files to current directory. - Some bugs were fixed: - Entering to archive's subfolders in Explorer by clicking items in main window didn't work under Windows ME/2000. - Decompressing solid Rar archives sometimes gave error. - Console version 7z.exe during list operation incorrectly showed file names with national (non-english) charsets. - FAR Plugin didn't execute some operations. - Showing percents during extracting ZIP archives sometimes was incorrect. 2.20 2000-11-20 ------------------------- - Supporting BZip2 and Cab. - New program architecture with external compression and cryptographic modules. - Decryption support (Rar and Zip). - New console client. - Some bugs were fixed. 2.11 2000-06-15 ------------------------- - Bugs were fixed: - FAR Plugin incorrectly processed names of subdirectories that use national (non-english) charsets. - gzip plugin could not compress empty files. 2.10 2000-05-16 ------------------------- - First level 7-Zip Plugin for FAR Manager. - GUI version with integration to Windows Shell. - Compression and decompressing GZip and TAR formats. - Decompression RAR. - Install & Uninstall support. - Some bugs were fixed. 2.01 1999-09-19 ------------------------- - Small bug was fixed. - Compression ratio was improved for some files. 2.00 1999-07-18 ------------------------- - Release. - Big bug was fixed: previous versions incorrectly worked during compressing with files that were referred by direct(without wildcards) paths, containing subdirs parts. - Compression and decompression speed were improved. - -mx switch (maXimize compression) was added. - Small bugs were fixed. 2.00 Beta 1 1999-01-02 ------------------------- - Original beta version. 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