I jumped into the R-Releases at v16R2. The first thing I noticed is that command-K (Mac) no longer invokes the Method Explorer. This is also true for the R3 release.
Please bring it back. I use this short-cut all the time and I find myself getting very frustrated to always need to go to the menu. If I highlight a method and press Command-K I do go to the Method, but I would like Command-K to work anywhere in the design environment like it use to (like in v16.x).