v4.00.4064 (26 Mar 2013)

- New improved graphics and icon.
- Improved internal architecture for better performance.
- New Duplicate File Finder tool.
- New System and Browser Monitoring (Pro Version).
- Optimized and improved Registry Cleaning.
- Added cleaning for Avast Antivirus 8, Adobe Photoshop CS6, Samsung Kies and Real Player 16.
- Improved Drive Wiper performance.
- Optimized Startup item detection algorithm.
- Optimized 64-bit builds on Windows 7 and 8.
- Many performance improvements and bug fixes.

http://www.piriform.com/ccleaner//download/standard