WinRar 3.6 final version has been released with the following features:

-Multithreaded version of RAR compression algorithm improves the compression speed on computers with several CPU, dual core CPU and processors with hyperthreading technology.
-WinRAR can display files as a folder tree panel
-WinRAR “Rename” command also works with ZIP archives. Earlier it worked with RAR files only
-Added support for decompression of LZH archives
-New “Remove duplicate folders from extraction path” option
-New “Define volume sizes…” button in “Settings/Compression”
-Speed of RAR general compression increased