Yet another reason you should not mess with Technet articles - In our DR procedures documentation we referenced the Datacenter Switchover article for Exchange 2010 with this link:
http://technet.microsoft.com/en-us/library/dd351049.aspx
However with your update, you effectively broke that link altogether, because it goes a page that says "This Topic Is No Longer Available", presumably because there isn't an Exchange 2013 version yet.
I had to search Technet and eventually found what you all did to the link:
http://technet.microsoft.com/en-us/library/dd351049(v=exchg.141).aspx
Why the original link wouldn't at least point ot the new link with the added (v=exchg.141) text is beyond me.
This is also not the first link I tried that is now completely broken:
http://technet.microsoft.com/en-us/library/dd298067.aspx
http://technet.microsoft.com/en-us/library/dd876950.aspx
http://technet.microsoft.com/en-us/library/dd979810.aspx
These 4 dead links are just from my Exchange 2010 DR procedure documentation, and I have links in other documents that you broke with this "update".
PLEASE do not try and recycle existing TechNet URLs, you are doing more than just making people land on the wrong version of Exchange. Instead please just add the link/pulldown/whatever to the new software version of the page.