The upgrade from Sitecore 8 to 8.1

Recently we just upgraded from Sitecore version 8 to 8.1.

One major thing to note.  It is preferred that all unique configurations be done within the Sitecore patch files, not in the Sitecore config files themselves.  Our senior developer mentioned that at anytime you should be able to drop a fresh install's config files (of the same version) in any site and the site should function the same.  Your independent, unique configurations should always exist in the patch files.

Here is a link to the Release Notes for 8.1: (Click Here)

Here is a link to the Known Issues thus far: (Click Here)

Initial Release Base Page: (Click Here)

Good luck in your upgrade, be sure to comment on anything that you may discover along your journey.

Enjoy!