User blog comment:Jimeee/Skyrim 1.9 beta update adds Legendary difficulty and raises level cap (Updated Apr 8th)/@comment-3194582-20130312164254/@comment-4976111-20130313103253

Well, this patch will add just the new Legendary Mode, the whole Level Cap thing mentioned in the blog, and the major bug fixes. One of those fixes that I read into was the ability to smith Imperial Light Armor. As for high level enemies, they'll likely be wearing better armor.