De ontwikkelaars achter 7-Zip hebben versie 9.28 alpha van hun opensource-archiveringsprogramma uitgebracht, als opvolger van 9.24 alpha. 7-Zip kan overweg met een groot aantal compressieformaten, waaronder zip, cab, rar, arj, lzh, chm, gzip, bzip2, z, tar, cpio, rpm, deb en uiteraard het zelfontwikkelde 7z. Verder is de software in staat om iso-bestanden en Nsis-installatiepakketten te openen. De meegeleverde releasenotes zien er als volgt uit:
What's new after 7-Zip 9.25 alpha:What's new after 7-Zip 9.27 alpha:
- LZMA2 now is default compression method for .7z format.
- 7-Zip now can update WIM archives.
- 7-Zip File Manager now can move files to archives.
- 7-Zip File Manager now can calculate CRC-32, SHA-1 and SHA-256 checksums for files.
- The default encoding for TAR format now is UTF-8. You can use -mcp=1 switch for OEM encoding.
- Command line version:
- new "rn" command to rename files in archive.
- new -sdel switch to delete files after including to archive.
- new -sns switch to store NTFS alternate streams (for WIM format only).
- new -sni switch to store NT security information for files (for WIM format only).
- Speed optimizations for opening big archives and big disk folders.
- DMG support was improved
- Some bugs were fixed.
- New localization: Aragonese.
7-Zip 9.28 alpha version is provided without source code. Source code will be released in future beta version.
- LZMA2 now is default compression method for .7z format.
- Some internal changes.