The third Release Candidate (RC) of Sugar CE 5.5.1 is now available to test.
Upgrade files are available! We recommend running a test upgrade from your version of Sugar to 5.5.1 RC 3 on a copy of your production instance (such as a development instance). Upgrade files from the 5.5.1 RC 3 to the final Generally Available (GA) release will be provided at the time of release of the GA.
While running Sugar 5.5.1 RC 3, if you encounter any issues, please let us know by submitting a bug in the Bug Tracker. Be sure to designate “5.5.1-RC3” in the “Found in Release” field. You can also use the Sugar 5.5.1 forums to discuss your experience.
A listing of the bugs and features addressed in Sugar 5.5.1 RC 3 can be found in the Bug Tracker.
Please check the release schedule for updates regarding the GA release. this thread.