We are happy to announce the release of Lightroom 6.5.1/CC 2015.5.1.

To update Lightroom to 6.5.1, choose Help > Updates

To update Lightroom to CC 2015.5.1, Click "Update" in the Creative Cloud desktop application next to Lightroom. 

Lightroom update details

What's New

We have received a number of reports where some members of this community are posing as Adobe Employees by offering to help troubleshoot issues personally using technologies such as Skype as a means to gain access to your computer and potentially your personal information.  All Adobe employees are required to have an orange ‘STAFF’ badge next to their user profile which can be seen if you mouse-over their profile picture.