Last week Exchange Server 2010 sp1 was released. There are several great features in SP1 and we highly recommend you upgrade your Exchange Server to it. However as with any Service Pack, be careful with the install and if you need any assistance please let us know.
Global Techforce clients that are on our “IT Max” support plans, will receive the update for free if you request it.
You can read about the new features/fixes of SP1 here: http://technet.microsoft.com/en-us/library/ff459257.aspx