WinRAR 5.21 changelog:

• "Drag and drop context menu" options in "Settings/Integration/Context menu items" dialog allow to disable WinRAR archiving and extraction commands in context menu displayed after dragging and dropping files with right mouse button.
• If winrar.ini file is present in the same folder as WinRAR installer, winrar.ini will be copied to WinRAR program folder after completing installation.
• While previous versions could produce RAR5 volumes of slightly smaller than requested size sometimes, such situation is less likely now. In most cases volume size equals to specified by user.
• Now by default WinRAR skips symbolic links with absolute paths in link target when extracting. You can enable creating such links with "Allow absolute paths in symbolic links" option on "Advanced" page of extraction dialog or with -ola command line switch.
• Such links pointing to folders outside of extraction destination folder can present a security risk. Enable their extraction only if you are sure that archive contents is safe, such as your own backup.

Bugs fixed:

• WinRAR 5.20 issued unnecessary user account control (UAC) prompt, when running an executable from archive stored in UAC protected folder. Since nothing is extracted to folder containing an archive in such case, UAC prompt is not needed;
• WinRAR could overwrite files with read-only attribute only when unpacking RAR and ZIP archive formats. Now it is also implemented for other archive formats supported by WinRAR;
• "Elapsed time" and "Time left" were displayed incorrectly when applying "Convert" command to multiple archives and enabling "Add recovery record" option.