RAR decompression speed is improved. Depending on data type,

• decompression can be up to 30% faster than in previous versions.

• Both the general RAR algorithm and most of special RAR multimedia

• methods benefit from this improvement. The only module of RAR
• algorithm, which is not affected, is "Text compression" method.

Changes in ISO support:

• UDF support is upgraded to UDF 2.50 revision. It makes possible

• to unpack most of Blue-ray ISO files;

• b) when browsing UDF ISO file, UDF revision number is displayed

• after the "UDF" format name in WinRAR address bar

• and in archive information dialog;

• c) WinRAR sets the folder modification date when unpacking folders

• stored in UDF and ISO9660 files.

Changes in password dialog:

• WinRAR uses the same format of password dialog both when archiving
• and extracting, so "Show password" option is available also

• when extracting;

• b) "Organize passwords..." button in password dialog provides

• access to password organizer interface, where you can specify
• your frequently used passwords. You will be able to access these
• saved passwords using the drop down list or autocomplete feature

• in password dialog.

• It is important to know that saved passwords are not encrypted

• and anybody having access to your computer can view them.
• Use "Organize passwords" feature only if your computer is

• protected from unauthorized access;

• c) "Use for all archives" option is available in password dialog

• when unpacking several archives at once. You can utilize it

• to apply an entered password to all archives.

• If you use this option with an empty password, WinRAR will skip

• all encrypted archives.

In Windows 7 WinRAR will display the total operation progress

• also on WinRAR icon on Windows taskbar. You can disable it using
• "Taskbar progress bar" option on "General" page of WinRAR settings.

Numerous Unicode support improvements allow to process non-English

• file names more smoothly. These improvements include:

• better Unicode handling in WinRAR in "Rename", "Convert",

• "Find" and other commands, in folder tree panel, in password

• request dialog and in many other parts of WinRAR interface;

• b) correctly displayed Unicode names in WinRAR items in Explorer

• context menus;

• c) Unicode support in .lng files, making WinRAR localization

• possible for Unicode only languages.

Changes in -x switch syntax. Now you can specify a wildcard

• exclusion mask for folders. Such mask must have the trailing '\'
• character, like -x*tmp*\ or -x*\temp\

New "Extract relative paths" option in "Advanced" part of extraction

• dialog. If you browse some archive subfolder in WinRAR shell
• and enable "Extract relative paths" option, the path part up to
• and including the current subfolder will be removed from extracted

• file paths.

• For example, if you are inside of "Backup\MyData" archive folder

• and extract "Images" folder, it will be extracted as "Images",

• not as "Backup\MyData\Images".

• This option is the new default extraction mode, but you can change

• the default back to WinRAR 3.x style. Just select "Extract full paths"
• and then press "Save settings" in "General" part of extraction dialog.

Windows 98, Windows Me and Windows NT are not supported by WinRAR

• and WinRAR self-extracting modules anymore. Minimum Windows version

• required for WinRAR 4.0 is Windows 2000.

• If you need to run WinRAR on older Windows, you can download

• previous WinRAR versions from ftp://ftp.rarlab.com/rar

If TAR, TAR.GZ or TAR.BZ2 archive contains symbolic or hard links

• and if destination file system is NTFS, WinRAR will create these
• links when unpacking such archive. WinRAR will create symbolic links
• as symbolic and hard links as hard in Windows Vista and newer

• and it will create all links as hard in older Windows.

• If destination file system is FAT32 or any other not supporting

• file links, WinRAR will skip links when unpacking TAR, TAR.GZ
• and TAR.BZ2 archives.

Recovery volume processing involves less disk seek operations

• resulting in higher performance.

You can select Windows 7 library in tree panel in extraction dialog

• and WinRAR will use its default save location as the destination path.

"Report" command allows to select HTML, Unicode text and usual text

• as output format for report file. Unlike previous WinRAR versions,
• now WinRAR preservers Unicode characters in reports when using HTML
• or Unicode text format. So non-English characters in file names
• will be displayed properly in such reports.

Message list in GUI SFX archives displays only operation status

• and error messages. It does not contain names of all extracted files
• anymore. This change improves the speed and reduces memory requirements
• for SFX archives containing a large number of files. Also it makes
• easier to locate error messages, because they are not hidden among
• extracted file names.

GUI SFX archives display "Extract" button instead of "Install"

• if no "Setup" or "Presetup" commands are present in the archive
• comment. If you prefer "Install" button, but do not need to
• execute any setup programs, you can add "Setup=<>" command.

WinRAR displays the current percent above the operation progress bar

• when repairing an archive containing the recovery record
• and when processing recovery volumes.

WinRAR limits the maximum possible volume size to 4 GB minus 1 byte

• when creating RAR volumes on a disk with FAT or FAT32 file system
• in volume size autodetecting mode. These file systems do not support
• 4 GB and larger files.

If "Wait if other WinRAR copies are active" option is enabled

• and WinRAR waits for another copy, you can press "Continue" button
• in command progress window to force WinRAR to stop waiting.
• So now "Continue" button allows to override the state of
• "Wait if other WinRAR copies are active" option for current operation.

WinRAR displays one password request instead of two, when saving

• an encrypted file back to RAR or ZIP archive after modifying it
• in some external editor. Previous WinRAR versions usually requested
• the password twice, both when extracting the original file
• and archiving its modified copy. Only RAR archives with encrypted
• file names were processed with the single password prompt.

New error code 10 ("no files") is added to list of error codes

• returned in command line mode by RAR and WinRAR. This new code
• can be returned by archive, extract, delete and repair commands.
• It means that RAR did not find any files matched the specified
• file or archive mask.

File name area in file overwrite dialog occupies several lines now.

• It makes possible to display much longer names.

Bugs fixed:

• renaming a file in archive could also rename all other files

• with the same name in other folders of the same archive;

• b) previous versions displayed the wrong total packed size

• in "Info" command for multivolume CAB archives;

• c) in ZIP archives 'U' (update) and 'F' (fresh) commands could

• erroneously update even files not specified in the command line.
• It happened only for files in current folder which names matched
• files in ZIP archive. This bug was not present in usual 'A' (add)
• archiving mode.