Download 7-Zip 9.28 alpha

The developers behind 7-Zip have released version 9.28 alpha of their open source archiving program, as a successor to 9.24 alpha. 7-Zip can handle a variety of compression formats, including zip, cab, rar, arj, lzh, chm, gzip, bzip2, z, tar, cpio, rpm, deb, and of course the proprietary 7z. Furthermore, the software is capable of opening iso files and Nsis installation packages. The included release notes look like this:

What’s new after 7-Zip 9.25 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.

What’s new after 7-Zip 9.27 alpha:

• LZMA2 now is default compression method for .7z format.
• Some internal changes.

7-Zip 9.28 alpha version is provided without source code. Source code will be released in future beta version.