Linux Mint 18 has Xed text editor installed by default instead of Gedit/Pluma. This should make a lot of former Gedit fans (those who didn't like the 3.x series UI changes) really happy if they are running Linux Mint Cinnamon (which previously shipped with Gedit).
Personally I don't hate the 3.x series Gedit UI, I certainly get why some people like it, but I majorly prefer the old 2.x series of Gedit, so Xed looks very appealing to me! Xed is a fork of Pluma which is a fork of Gedit 2.x. My understanding is that main difference between Pluma and Xed is that Xed is an X-App.