Winrar New And Latest

Latest English WinRAR and RAR beta version

WinRAR - What's new in the latest version


   Version 5.00 beta 2

   1. When adding an incompressible file to non-solid RAR archive,
      beta 1 could duplicate the first megabyte of archived file,
      resulting in damaged file.

   2. "Add to archive..." context menu command could place a created archive
      to a wrong folder.

   
   Version 5.00 beta 1

   1. New RAR 5.0 archiving format. You can use "RAR 5.0" option
      in archiving dialog or -ma command line switch to create
      RAR 5.0 archives.
      
      Older software including older WinRAR versions is not able to
      decompress RAR 5.0 archives, so if you plan to send an archive
      to other people, it is necessary to take the compatibility issue
      into consideration. You can select "RAR" instead of "RAR5" option
      in archiving dialog to create RAR 4.x archives compatible with
      previous WinRAR versions.

   2. Changes in RAR 5.0 compression algorithm:

      a) maximum compression dictionary size is increased up to 1 GB
         in 64 bit WinRAR. 32 bit WinRAR version can use up to 256 MB
         dictionary when creating an archive. Both 32 bit and 64 bit
         versions can unpack archives with any dictionary size,
         including 1 GB;

      b) default dictionary size for RAR 5.0 is 32 MB, typically resulting
         in higher compression ratio and lower speed than RAR 4.x 4 MB.
         You can use "Dictionary size" archiving dialog option or -md
         switch to change this value;

      c) -md switch syntax is modified to support larger dictionary
         sizes. Append 'k', 'm' and 'g' modifiers to specify the size
         in kilo-, mega- and gigabytes, like -md64m for 64 MB dictionary.
         If modifiers are not present, megabytes are assumed,
         so -md64m is equal to -md64;

      d) RAR 5.0 format includes Intel IA-32 executable and delta
         compression algorithms, but RAR 4.x text, audio, true color
         and Itanium algorithms are not supported. These excluded algorithms
         are not efficient for modern data types and hardware configurations;

      e) RAR 5.0 decompression can utilize several CPU cores.
         Though not to same extent as in compression algorithm,
         it improves the decompression speed on large files
         with poorly compressible data or when using BLAKE2 checksums.

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