Whats new in version 4.20:• Fixed XZ archive support, which did not work in beta 2.
• "Convert" command did not allow to use compression dictionaries exceeding 4 MB.
• If both encryption password and archive comment were specified when creating RAR archive, archive comment was not added.
• "View as Unicode (UTF-8)" command in internal viewer did not work, so UTF-8 files were displayed correctly only if their encoding was detected by viewer automatically.
• Maximum compression dictionary size when running in Windows XP x86 is reduced to 128 MB. WinRAR cannot allocate enough memory to create archives with 256 MB dictionary in Windows XP x86.
• Corrections in relative path processing, such as "..\\arcname.rar" name in archiving dialog or "WinRAR foldername" in the command line.
Publisher review:RAR is an iconic software in the field of file compression. As its name suggests, the software runs its course RarLabs RAR format files, but also the inevitable ZIP and decompression formats: CAB, ARJ, LZH, TAR, GZIP, TAR.GZ, BZ2, TAR. BZ2, ACE, UUE, JAR, ISO - ISO9660, 7-Zip , Z and even a disk image of a Blu-ray backup ISO format.
In addition to compress and decompress, sufficient for the average user features, RAR also includes more advanced features such as protection of archives by creating recovery volumes possibilities, adding passwords, test archived files or a module for benchmarking performance testing compression of your MAC.
Over time, the publisher RARLAB has made its software and a reference to each major update performance software announced the increases.
Limitations of the trial version 40 days of use.
Operating system:Mac OS X
RAR for Mac OS X 4.20 details 
