21.06 2021-11-24 ————————- – The window “Add to Archive” now allows to set a limit on memory usage (RAM) that will be used for compressing. – New switch -mmemuse={N}g / -mmemuse=p{N} to set a limit on memory usage (RAM) for compressing and decompressing. – Bug in versions 21.00-21.05 was fixed: 7-Zip didn’t set attributes of directories during archive extracting. – Some bugs were fixed.
21.04 beta 2021-11-02 ————————- – 7-Zip now reduces the number of working CPU threads for compression, if RAM size is not enough for compression with big LZMA2 dictionary. – 7-Zip now can create and check “file.sha256” text files that contain the list of file names and SHA-256 checksums in format compatible with sha256sum program. 7-Zip can work with such checksum files as with archives, but these files don’t contain real file data. The context menu commands to create and test “sha256” files: 7-Zip / CRC SHA / SHA-256 -> file.sha256 7-Zip / CRC SHA / Test Archive : Checksum The commands for command line version: 7z a -thash file.sha256 *.txt 7z t -thash file.sha256 7z t -thash -shd. file.sha256 New -shd{dir_path} switch to set the directory that is used to check files referenced by “file.sha256” file for “Test” operation. If -shd{dir_path} is not specified, 7-Zip uses the directory where “file.sha256” is stored. – New -xtd switch to exclude directory items from processing.
