Oracle Enterprise Manager 13c Release 5 Update 3 (188.8.131.52), RU3 for short, is now available for download from My Oracle Support > Patches & Updates.
Release Updates Details
If you are new to the Enterprise Manager world you may find this information useful: Release Updates (RUs) enable us to roll out new features and bug fixes quickly so you don’t have to wait for a new major release. Release Updates are versioned using a trailing digit indicating the RU version and are cumulative, which means that the most recent RU includes functionality from all previous Release Updates. Our general recommendation is to apply the most current Release Update as soon as possible.