This a a new version of CCleaner. Download CCleaner. According to the forums there is no longer a “slim” version.
*edit – apparently the forums were mistaken, The slim version showed up.
* A new 64-bit native EXE designed specifically for 64-bit systems.
* A new Drive Wiper tool screen under the Tools section, which allows users to securely erase the contents or free space on a specified drive.
* Improved support for Internet Explorer 9 and the Google Chrome browsers.
* We have also added improved cleaning support for HTML5 database storage, allowing CCleaner to effectively manage the next generation of web applications.
* Additional cleaning support for Microsoft Silverlight Isolated Storage.
* We’ve added three new environment variables (%SystemDirectory%, %SystemDirectory32%, and %SystemDirectory64%).
* New application icon.
* New Intelligent cookie keeping feature.
* and more…