Il s’ agit d’un utilitaire de compression/décompression gratuit. Il est très utile car il permet de compresser en zip avec un taux de compression bien plus élevé que les autres compresseurs de format Zip, de plus son célèbre format 7z permet de compresser jusqu’à 50% à 70% de mieux que le zip classique sur certaines archives moyennant un temps et une consommation CPU/RAM énorme.
– Compressing speed and Memory requirements were increased.
Default dictionary size was increased: Fastest: 64 KB, Fast: 1 MB,
Normal: 4 MB, Max: 16 MB, Ultra: 64 MB.
– BZip2 compressing / decompressing now can work in multi-threading mode
– Multi-threading mode now is default for multi-processor systems
– 64-bit version now supports 1 GB dictionary
– 7z/LZMA now can use only these match finders: HC4, BT2, BT3, BT4
– Compression ratio in Zip/GZip/Deflate in Ultra mode was increased
– 7-Zip now can unpack ISO archives and some installers created by NSIS
– Optional « Flat View » mode in 7-Zip File Manager
– 7-Zip File Manager now can calculate CRC checksums for files
– -x switch with relative paths now affects files specified with absolute paths
– New switch for 7za.exe (console version): -slt.
« l » (list) command with -slt shows technical information for archive.
– New switch: -scs{WIN|DOS|UTF-8} specifies charset for list files.
Default charset for list files is UTF-8 now.
– Some bugs were fixed
– New localizations: Albanian, Kurdish
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