SyncToy 2.1 has just been released to the Microsoft Download center. SyncToy 2.1 is a free application that synchronizes files and folders between locations. Typical uses include sharing files, such as photos, with other computers and creating backup copies of files and folders.

SyncToy2.1 is powered by the latest synchronization engine from Microsoft Sync Framework 2.0 and provides better performance and robustness. The new features and improvements included in SyncToy 2.1 release are:

• Better Performance: The speed of file copy operations is significantly increased across the board.
• Improved Robustness: Much more resilient to transient network and file system errors, and better error reporting that pinpoints which file the sync failed on in case there’s a fatal error that stops the sync.
• Folder pair configuration backup: Folder pair configuration is automatically backed up under %localappdata%\microsoft\synctoy\2.0. You can replace SyncTopDirPairs.bin with the backup copy to resolve the last saved configuration.  
• Bug Fixes:

o        Fixed the data corruption issue when using SyncToy with NAS drives.

o        Fixed the bug that prevented uploading files to SharePoint when using SyncToy 2.0.

o        Fixed the bug that prevented delete changes from being synchronized when the sync option was set to “Echo”.