![]() 7-Zip now can unpack files encoded with Base64 encoding (b64 filename extension).bzip2 decoding code was updated to support bzip2 archives, created by lbzip2 program.Minor speed optimizations in multithreaded LZMA/LZMA2 compression for Normal/Maximum/Ultra compression levels.Fast level (-mx3) : hc5 match finder with 4 MB dictionary.Fastest level (-mx1) : hc5 match finder with 256 KB dictionary.The compression ratio was improved for Fast and Fastest compression levels with the following default settings:.7-Zip now supports new optional match finders for LZMA/LZMA2 compression: bt5 and hc5, that can work faster than bt4 and hc4 match finders for the data with big redundancy.If the switch -ssp is specified, 7-Zip doesn’t allow the system to modify “Last Access Time” property of source files for archiving and hashing operations. The speed of PPMd compressing/decompressing was increased for 7z/ZIP/RAR archives. ![]() It allows to increase the compression speed for big 7z archives, if there is a big number of CPU cores and threads. The default number of LZMA2 chunks per solid block in 7z archive was increased to 64.New localizations: Tajik, Uzbek (Cyrillic).The bug in versions 18.02 – 21.00 was fixed: 7-Zip could not correctly extract some ZIP archives created with xz compression method. ![]()
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