MS Exchange 2010 Hosted Mode
I have a client that has an MS Exchange 2010 (in hosted mode) system installed. It is currently running at version:

Now, I am aware this is well, well out of date and having checked
here I can see that the system is currently at Update Rollup 8 for Exchange Server 2010 SP.
So, with very little experience of MS EX 2010 Hosted Mode, can any experts on the topic answer for me:
- Can I update to Exchange Server 2010 SP3
- Can I then update to latest Update Rollup 24 for Exchange Server 2010 SP3?
- Are there any risks to the Hosted Mode (very important)
Or any other comments?
Thanks
Mark