Hi Folks. I just updated to IDEA 2020.3, and I see new behavior WRT tool windows. Formerly, the keystroke for showing a tool window (e.g., Find via command-3 on my mac) would do nothing if there were currently no results. Now the command shows a blank window with instructions - which is fine by me - but the same keystroke should hide it, but does not. Hide Active Tool Window (shift-esc on my mac) does work on blank Find. An empty Run tool window behaves differently: I hit command-4 to show it, which is gray with "Nothing to show", but (like Find) command-4 does not hide it, nor does shift-esc.
IntelliJ IDEA 2020.3 (Ultimate Edition)
Build #IU-203.5981.155, built on November 30, 2020
Runtime version: 11.0.9+11-b1145.21 x86_64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.