There are changes in code for the drag-and-drop operations to and from 7-Zip File Manager.There are optimizations in code for 7-Zip's context menu in Explorer: the speed of preparing of the menu showing was improved for cases when big number of files were selected by external program for context menu that contains 7-Zip menu commands.

It allows to avoid the failures for cases with big number of volumes, bacause there is a limitation for number of open files allowed for a single program in Linux and macOS. 7-Zip for Linux and macOS now can reduce the number of simultaneously open files, when 7-Zip opens, extracts or creates multivolume archive.Previous versions kept all volumes in open state until the end of the archive creation. When new 7-Zip creates multivolume archive, 7-Zip keeps in open state only volumes that still can be changed.Some changes and optimizations in WIM creation code.It can increase compression ratio for executable files larger than 64 MiB. Default section size for BCJ2 filter was changed from 64 MiB to 240 MiB.Previous versions by default used x86 filter BCJ or BCJ2 for all exe/dll files.ARM64 filter for ARM64 executable files.BCJ or BCJ2 filter for x86 executable files,.Also 7-Zip now parses executable files (that have exe and dll filename extensions) before compressing, and it selects appropriate filter for each parsed file:.ARM64 filter can increase compression ratio for data containing executable files compiled for ARM64 (AArch64) architecture. 7-Zip now can use new ARM64 filter for compression to 7z and xz archives.Self-extracting capability for 7z format.Strong AES-256 encryption in 7z and ZIP formats.Compression ratio for ZIP and GZIP formats: 2-10 % better than the ratio provided by PKZip and WinZip.High compression ratio in 7z format with LZMA compression.

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