Вот и первая бета версии 3.80 вышла 
 http://rarlab.com/rar/wrar38b1.exe  А в [more=списке изменений] Version 3.80 beta 1   
    1. Added support for ZIP archives containing Unicode file names 
       in UTF-8 format. When creating ZIP archive, WinRAR stores  
       names in Unicode only if they cannot be stored correctly using  
       the current single byte character set.   
    2. Added decompression support for WinZip AES encrypted ZIP archives.   
    3. Improved Unicode support for RAR and ZIP archive names.   
    4. "Ask before overwrite" and "Skip existing files" update modes 
       are now available in archiving dialog. They allow to specify 
       WinRAR behavior when updating already existing files in archive. 
       Unlike already available "Fresh existing files only" and 
       "Add and update files", these new modes ignore file date 
       and compare only file names.   
       Command line equivalents of these modes are:   
       a) switch -o enables "Ask before overwrite" archiving mode;   
       b) switch -o- enables "Skip existing files" archiving mode;   
       c) switch -o+ enables "Overwrite all" mode (default for archiving).   
    5. New "Add to context menu" option in "Profile parameters" dialog. 
       If this option is on, the profile name will be displayed in Explorer 
       context menus allowing to activate a profile from context menu.    
    6. New -cp switch allows to select a compression profile 
       in command line mode. It is supported only by GUI WinRAR.exe, 
       not by rar.exe.   
    7. New "Options" page of archiving dialog contains the group of 
       settings modifying the behavior of "Delete files after archiving" 
       option from "General" page:   
       a) Delete files. Delete files normally like in previous WinRAR 
          versions.   
       b) Move files to Recycle Bin. Deleted files are placed to 
          Recycle Bin.   
          Command line equivalent of this option is -dr switch.   
       c) Wipe files. Before deleting file data are overwritten by 
          zero bytes to prevent recovery of deleted files.   
          Command line equivalent of this option is -dw switch.   
       All these options have an effect only if "Delete files 
       after archiving" is on. You can enable any of these options 
       in the default compression profile to change the default 
       behavior of "Delete files after archiving".   
    8. WinRAR "Extraction path and options" dialog is now resizable. 
       You can use the mouse to drag its border to the desired size  
       and provide more space for folder tree pane. WinRAR will store 
       new dimensions of this dialog.   
    9. New "Update" SFX script command and "Update mode" group 
       of options in "Update" page of "Advanced SFX options" dialog. 
       These command and options allow to check time and implement 
       file time based updating;   
   10. SFX script "Shortcut" command and "Add shortcut..." command 
       in "Advanced SFX options" dialog now allow to specify 
       an icon file containing an icon associated with shortcut.   
   11. New "Wipe temporary files" option in "Settings/Security" dialog 
       provides more secure, though slower, way to delete temporary 
       WinRAR files.   
   12. WinRAR and RAR display the total progress bar when unpacking 
       a multivolume RAR archive if all volumes are present 
       in the same folder.   
   13. WinRAR and RAR automatically expand names of environment 
       variables in list files. For example, a list file can contain 
       lines like:   
         %windir%\*.exe 
         %USERPROFILE%\Desktop   
       This feature is available only in Windows RAR version.   
   14. Added support of TAR archives with non-zero "extra field" data.         
   15. Added support of TAR archives, which does not contain 
       the end of archive entry consisting of 512 zero bytes.   
   16. Improved Unicode support when dragging files from WinRAR window.   
   17. Shift+Tab key combination can be used in main WinRAR window to  
       switch the input focus between interface elements (files, comment,  
       tree, address) in reverse order. In previous versions Shift+Tab  
       used the same order as Tab.   
   18. Corrected a possible WinRAR crash when opening truncated  
       UDF ISO filesъ[/more] оптимизации скорости сжатия под многоядерники нету. Разница в сжатии между многоядерниками и одноядерниками, ИМХО, совсем маленькая, в том же 7-Zip на многоядерных на порядок выше скорость чем на аналогичных одноядерных. Но список нового все-равно впечатляет 

 Ждем русскую версию беты.