9.15 beta

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- Some bugs were fixed.
- New localization: Tatar

9.14 beta

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- WIM support was improved.

9.13 beta

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- 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.

9.12 beta

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- 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).

9.11 beta

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- 7-Zip now supports PPMd compression in ZIP archives.
- Speed optimizations in PPMd codec.
- The support for archives in installers was improved.
- Some bugs were fixed.
- New localization: Kazakh.

9.10 beta

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

9.09 beta

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- 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.

9.07 beta

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

9.06 beta

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- 7-Zip now can unpack MSLZ archives.
- Partial parsing for EXE resources, SWF and FLV.
- Some bugs were fixed.

9.04 beta

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- 7-Zip now can update solid .7z archives.
- 7-Zip now supports LZMA2 compression method.
- 7-Zip now supports XZ archives.
- 7-Zip now can unpack NTFS, FAT, VHD and MBR archives.
- 7-Zip now can unpack GZip, BZip2, LZMA, XZ and TAR archives from stdin.
- 7-Zip now can open/copy/compress disk images (like \\.\c:) from \\.\ folder.
- 7-Zip File Manager now doesn’t use temp files to open nested archives stored without compression.
- New -scrc switch to calculate total CRC-32 during extracting / testing.
- New -scc{WIN|DOS|UTF-8} switch to specify charset for console input/output (default = DOS).
- Some bugs were fixed.