How to tell which Service Pack 1 you have installed on SharePoint 2013

It’s been a fun couple of months for guys like me that watch SharePoint patching. Earlier this month Microsoft discovered aparticularly nasty bug in SharePoint 2013 Service Pack 1 and they pulled it. They locked their best and brightest patchmeisters into a room, threw in some Mt. Dew and Snickers bars and had them crank out a newer, better, stronger,more-able-to-be-patched version of Service Pack 1. If you were one of the people that installed the first, broken SP1, the fix is to install the new, shiny SP1 over top of it. The problem is figuring out which version of SP1 you have installed. The new SP1 looks an awful lot like his older brother, right down to the Farm build number (15.0.4569.1000). There is an easy way to tell them apart in Central Administration.

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