FileMaker Server 10 Advanced Move to version 11
I just upgraded using the maintenance license agreement from FileMaker Server Advanced 10 to 11. It was configured to publish databases via php using FMStudio. The upgrade process messed with my IIS web server and php settings, even though I followed the process recommended.
Word to the Wise - If you have any critical systems running with an older version of server, don't upgrade to server 11 until you have plenty of time to deal with the issues it will create!