RIM released SP5 for BES v4.0

I received an email yesterday from RIM saying SP5 is now available (at least at the partnerzone) for BES (Blackberry Enterprise Solution) v4.0 for Exchange. From my limited 1y+ experience, I have a inkling that their release process is not as stringent as I'd like, since many times I am still surprised to find a disappearing bug or a new bug or two, even after examining their release notes. Regardless, got to go with the flow and read sp5's release notes, since no better alternative is available.