Version history for 7-Zip (64-bit)

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Changes for v9.21 Beta - v9.22 Beta

• 7-Zip now uses progress indicator displayed on a taskbar button under Windows 7.
• The BUG in 7-Zip 9.21 beta was fixed: 7-Zip could ignore some options when you created ZIP archives. For example, it could use ZipCrypto cipher instead of AES-256.

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Changes for v9.20 - v9.21 Beta

• - 7-Zip now can unpack UEFI BIOS files.
• - 64-bit version of 7-Zip now includes additional 32-bit shell extension DLL. So other 32-bit programs can call 64-bit 7-Zip via context menu.
• - Now it's possible to associate 7-Zip with file types without Administrator rights.
• - New -mf=FilterID switch to specify compression filter. Examples:
• 7z a -mf=bcj2 a.7z a.tar
• 7z a -mf=delta:4 a.7z a.wav
• 7z a -mf=bcj a.tar.xz a.tar
• - 32-bit 7-Zip running under 64-bit Windows x64 now can use up to 4 GB of RAM.
• - Some bugs were fixed.
• - New localizations: Corsican, Kyrgyz, Ligurian.

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Changes for v9.19 Beta - v9.20

• Some bugs were fixed.

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Changes for v9.18 Beta - v9.19 Beta

• The console version now doesn't show entered password.
• Some bugs were fixed.

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Changes for v9.17 Beta - v9.18 Beta

• 7-Zip now can unpack SquashFS and CramFS filesystem images.
• 7-Zip now can unpack some TAR and ISO archives with incorrect headers.
• New small SFX module for installers (in Extra package).
• Some bugs were fixed.

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Changes for v9.16 Beta - v9.17 Beta

• Disk fragmentation problem for ZIP archives created by 7-Zip was fixed.

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Changes for v9.15 Beta - v9.16 Beta

• 7-Zip now supports files that are larger than 8 GB in TAR archives.
• NSIS support was improved.
• Some bugs were fixed.
• New localizations: Hindi, Gujarati, Sanskrit.

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Changes for v9.14 Beta - v9.15 Beta

• Some bugs were fixed.
• New localization: Tatar

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Changes for v9.13 Beta - v9.14 Beta

• WIM support was improved.

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Changes for v9.12 Beta - v9.13 Beta

• 7-Zip now stores NTFS file timestamps to ZIP archives.
• New additional "Open archive >" item in context menu allows to select archive type for some files.
• Some bugs were fixed.
• New localization: Uyghur.

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Changes for v9.11 Beta - v9.12 Beta

• ZIP / PPMd compression ratio was improved in Maximum and Ultra modes.
• The BUG in 7-Zip 9.* beta was fixed: LZMA2 codec didn't work, if more than 10 threads were used (or more than 20 threads in some modes).

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Changes for v9.09 Beta - v9.10 Beta

• The BUG in 7-Zip 9.09 beta was fixed: 7-Zip created incorrect ZIP archives, if ZipCrypto encryption was used.

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Changes for v9.07 Beta - v9.09 Beta

• 7-Zip now can unpack Apple Partition Map (APM) disk images.
• Speed optimizations in AES code for Intel's 32nm CPUs.
• Speed optimizations in CRC calculation code for Intel's Atom CPUs.
• Some bugs were fixed.

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Changes for v9.06 Beta - v9.07 Beta

• It's possible to specify Diff program in options (7-Zip File Manager).
• Some bugs were fixed.

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Changes for v4.64 - v4.65

• 7-Zip File Manager now can calculate SHA-256 checksum.
• Some bugs were fixed.

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Changes for v4.63 - v4.64

• The bug in 7-Zip 4.63 was fixed: 7-Zip could not decrypt .ZIP archives encrypted with WinZip-AES method.

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Changes for v4.62 - v4.63

• 7-Zip now can unpack ZIP archives encrypted with PKWARE-AES.
• Some bugs were fixed.

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Changes for v4.61 Beta - v4.62

• Some bugs were fixed.

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Changes for 4.60 Beta - v4.61 Beta

• 7-Zip now supports LZMA compression for .ZIP archives.
• Some bugs were fixed.
• New localization: Sinhala.

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Changes for v4.59 Beta - 4.60 Beta

• Some bugs were fixed.

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