Versie 18.01 van 7-Zip is verschenen. Dit opensource-archiveringsprogramma 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. Sinds versie 16 kan het programma met grote, over diverse bestanden verspreide zipbestanden van het type z01, z02 enzovoort overweg. Ondersteuning voor zip.001, zip.002 enzovoort was al aanwezig. In deze versie zijn de volgende veranderingen aangebracht:
What's new after 7-Zip 18.00 beta:
- 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.
Wie de veranderingen in de bètaversies heeft gemist, worden ze als volgt samengevat:
What's new after 7-Zip 16.04:
- 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.
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