7-Zip 18.01

The open source altern atternative7-Zip just got released in v18.01. The new version of the Windows software is the first final release of 2018. The first two digits of the version number reflect the year of release.

7-Zip_Logo

Overview

The new beta version of the archiving software comes with support for unpacking .obj and .coff files. The rest of the changes are more related to advance users. Normal daily users will notice that the multi-threading compression performance of LZMA2 archives such as xz and 7z got improved in the release, 7-Zip uses additional buffers for multi-block LZMA2 compression, and CPU utilization improved slightly as a consequence.

Changelog

As always the changelog can be found in the official forum.

  • Minor speed optimization for LZMA2 (xz and 7z) multi-threading compression.
    7-Zip now uses additional memory buffers for multi-block LZMA2 compression.
    CPU utilization was slightly improved.
  • 7-zip now creates multi-block xz archives by default. Block size can be
    specified with -ms[Size]{m|g} switch.
  • xz decoder now can unpack random block from multi-block xz archives.
    7-Zip File Manager now can open nested multi-block xz archives
    (for example, image.iso.xz) without full unpacking of xz archive.
  • 7-Zip now can create zip archives from stdin to stdout.
  • ZIP unpacking code was improved.
  • 7-Zip now can unpack OBJ/COFF files.
  • 7-Zip now can unpack DMG archives that use LZFSE compression method.
  • 7-Zip now doesn’t allow update operation for archives that have read-only attribute.
  • 7-Zip command line: @listfile now doesn’t work after — switch.
    Use -i@listfile before — switch instead.
  • new -sse switch to stop archive creating, if 7-Zip can’t open some input file.
  • 7-Zip now reserves file space before writing to file (for extraction from archive).
    It can reduce file fragmentation.
  • Internal changes in code.
  • The BUGs were fixed:
    7-Zip could add unrequired alternate file streams to WIM archives,
    for commands that contain filename wildcards and -sns switch.
    Extracting from tar with -si switch didn’t set timestamps for directories.
  • Some bugs were fixed. 7-Zip could crash in some cases.
  • 7-Zip now can unpack DMG archives that use LZFSE compression method.
  • 7-Zip now doesn’t allow update operation for archives that have read-only attribute.
  • The BUG was fixed:
    extracting from tar with -si switch didn’t set timestamps for directories.
  • Some bugs were fixed.

Download

Final words

7-Zip is a fantastic alternative to Winrar and does its job, sadly the development is a little bit slow for my taste but it’s not like that some voodoo or magic gets integrated with each new major release so it’s not that dramatically, no matter if you use the beta or final version, it does its job and more importantly it’s open source.

The security related issues seems fixed and I’m excited what’s coming next.

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