: By default, WinRAR 5.21 began skipping symbolic links with absolute paths during extraction. This prevents a potential security risk where an archive could attempt to write files to sensitive directories outside the intended destination folder (like C:\Windows ).
One of the primary focuses of the 5.21 development cycle was refining how WinRAR interacted with the Windows shell.
While the RAR5 format was already established, version 5.21 improved the consistency of archive volumes. winrar-x86-521b2.exe
: The x86 in the filename indicates this is the 32-bit version. While it runs on 64-bit Windows, the x64 version is generally preferred for modern systems to leverage more memory for large compression dictionaries.
: If a winrar.ini file is detected in the same folder as the installer ( winrar-x86-521b2.exe ), it is automatically copied to the program folder upon installation, making it easier for users to deploy custom settings. 2. Compression Engine Refinements : By default, WinRAR 5
Safety regarding symbolic links was a critical update in this branch.
: Previous versions occasionally produced RAR5 volumes slightly smaller than the user-specified size; 5.21 corrected this logic to ensure volumes closely match requested limits. 3. Security and Path Handling While the RAR5 format was already established, version 5
WinRAR 5.21 was a maintenance and refinement release following the major jump to the compression format introduced in version 5.0. 1. Integration and Interface Improvements