Holding F on doors/gates don't seem to be working for me.
Current 6.4.53d3d3, it does nothing when i hold F but it does lower/open when i just tap F
Wooden drawbridge and wall with door. All i have tested on.
EDIT: after more Testing wall with Door just works from inside. Was trying to do quick change from outside.
EDIT2: Wooden Drawbridge works from outside but not inside.