Lightroom CC 2015.5.1 and Lightroom 6.5.1 are now available. The focus with this release was to add support for new cameras and also fix reported customer issues.
Please note that on first launch of Lightroom CC 2015.5.1 / 6.5.1, you will need to log in to continue syncing images and metadata between desktop and your mobile devices. To sign in, click on the Activity Center in the upper-left corner and select the “Sign In” button. For more info see these detailed instructions.
New Camera Support in Lightroom CC 2015.5.1 / 6.5.1
Image flickers when moving an adjustment slider. Note that this only occurs when using certain AMD graphics cards (such as 6450M and 6970M) on Mac OS 10.11 (El Capitan). We are working with our partners to resolve this issue. In the meantime, you can workaround this issue by disabling “Use Graphics Processor” in Lightroom’s preferences.