Drop TinyMCE from the core. Replace with CKEditor. Plus add MarkupHTMLPurifier to the core. Also some improvements to the Modules detection to prevent any issues with folks that might already have these modules installed in /site/modules/. After installing this update, if you want to continue using TinyMCE, you'll want to install the new 3rd party InputfieldTinyMCE module (in my GitHub repo or InputfieldTinyMCE from the modules directory). I'll continue to maintain this as a 3rd party module. If you already have InputfieldCKEditor and/or MarkupHTMLPurifier installed, you can delete /site/modules/InputfieldCKEditor/ and /site/modules/MarkupHTMLPurifier/ after installing this update, if you want to (recommended). There are some new error messages and notifications in the admin that detect these situations and tell you what to do as well. It's a good idea to go to Modules > Check for New Modules after installing this update. Last thing to note is that this version of InputfieldCKEditor is a little newer than the 3rd party repo in that it has a few more config options for markup beautification.