vim ruby mismatch on Mac High Sierra

Question

I recently upgraded my Mac to High Sierra

After the upgrade, Macvim (mvim) stopped working because (I assume) HighSierra upgraded ruby to 2.3, and mvim

Answer 1

Tried to use brew upgrade macvim an error was raised and the failed. What worked for me is to open the MacVim in a normal window (not a iTerm or terminal) the graphic version noticed that a newer version is available and asked if I want to update. Clicked yes, please and done. macvim in terminal or iTerm works just fine (as well as the "window" version).