Released: Update Rollup 5 for Exchange 2010 Service Pack 3 and Update Rollup 13 for Exchange 2007 Service Pack 3

I applied RU5 to my Exchange 2010 SP3 system on Saturday. I had no issues with the actual installation.

Yesterday, some of my more savvy users reported that the advanced search feature in Outlook 2010 no longer worked properly. An ordinary search for “Smith, Joe” works fine, but of course brings back every message referencing “Joe Smith” including those where the name is in the body of the message. However, when an advanced search for FROM:Smith is performed, the results stop on Friday, the day before I applied the update. Nothing received after that appears in the advanced results, only in the basic results.

Is anyone else seeing this? Any ideas on how to fix it? I only updated one of my database servers, so my temporary solution was to move all the databases to a different database server (at RU4) and now the search works. The two database servers are identical in every way, including installed Microsoft updates, except for RU5.

Thanks for any help.