iTunes received an update today. They’ve refreshed the look a little bit and fixed some bugs. Overall it looks pretty good, but I’m already annoyed I can only view my “recently added” screen in the “album format.” I liked the list view.
OS X 10.11.5 is likely to be the last major point update to El Capitan. All versions of OS X since Apple switched to a yearly release model have gotten five major point updates followed by a couple years of security-only updates. Work on major new features and improvements at this point has presumably shifted to the next version of OS X, which Apple will demo publicly at WWDC next month