WinRAR 6.20 Beta 1

WinRAR

WinRAR is an archiving utility that completely supports RAR and ZIP archives and is able to unpack CAB, ARJ, LZH, TAR, GZ, UUE, BZ2, JAR, ISO, 7Z, Z archives. It consistently makes smaller archives than the competition, saving disk space and transmission costs. WinRAR offers you the benefit of industry strength archive encryption using AES (Advanced Encryption Standard) with a key of 128 bits. It supports files and archives up to 8,589 billion gigabytes in size. It also offers the ability to create self extracting and multi volume archives. With recovery record and recovery volumes, you can reconstruct even physically damaged archives.

WinRAR 6.20 Beta 1 changelog:

If "Autodetect passwords" option in "Organizer passwords" dialog is enabled and password matching a processing archive is present among saved passwords, it is applied automatically. This option is applicable only for archives in RAR 5.0 and ZIP formats, which allow to verify the password validity quickly.
There is a minor chance of incorrect password detection for ZIP archives if stored passwords do not include a proper one. If encrypted ZIP archive extraction fails, you can try to disable this option, repeat extraction and enter a valid password manually.
If extraction command involves only a part of files in RAR archive, the additional archive analysis is performed when starting extraction. It helps to properly unpack file references even if reference source is not selected. It works for most of RAR archives except for volumes on multiple removable media and archives containing a very large number of references.
Also in some cases such analysis may help to optimize the amount of processing data when extracting individual files from semi-solid archives created with -s and -se switches.
"Save original archive name and time" option on "Options" page of archiving dialog allows to save the original archive name and creation time. If archive includes such saved name and time, they are displayed on "Info" page of "Show information" command and can be restored on "Options" page of same command. Restoring involves renaming an archive to original name and setting the saved time as the archive creation and modification time.
Switch -ams or just -am together with archive modification commands can be used to save the archive name and time in the command line mode. These saved parameters are displayed in header of "l" and "v" commands output and can be restored with -amr switch combined with "ch" command, such as "rar ch -amr arc.rar". If -amr is specified, "ch" ignores other archive modification switches.
Faster RAR5 compression of poorly compressible data on modern CPUs with 8 or more execution threads. This applies to all methods except "Fastest", which performance remains the same.
"Repair" command efficiency is improved for shuffled data blocks in recovery record protected RAR5 archives.
If file size has grown after archiving when creating non-solid RAR volumes, such file is stored without compression regardless of volume number, provided that file isn't split between volumes. Previously it worked only for files in the first volume.
Added decompression of .zipx archives containg file references, provided that both reference source and target are selected and reference source precedes the target inside of archive. Typically, if .zipx archive includes file references, it is necessary to unpack the entire archive to extract references succesfully [full release notes]