Amazing days.
Lately I only upgrade when forced. I ran 10.8 until earlier this year when I finally upgraded my machine. Then I spent a week trying to figure out how the hell to get gdb working again because binaries now require code signing and there's this horrible new thing called System Integrity Protection that tries to protect me from myself. They also took away my Escape key and replaced it with this TouchBar nonsens just because I wanted an i7 CPU. To put this into perspective: I practically live inside vim.