AEM 6.1
If you have not hear, Adobe has just recently released Adobe Experience Manager 6.1. This was released on May 28th. This new release provides new and enhanced functionality, key customer fixes, high priority customer enhancements, and general bug fixes. This release includes all of the 6.0 feature packs, hot fixes, and service pack releases.
You can find a list of "what is new" in the release notes here: http://docs.adobe.com/docs/en/aem/6-1/release-notes.html
You can find the complete documentation here: http://docs.adobe.com/docs/en/aem/6-1.html