• Optionally (and off by default) query an online API for info about the current position. Currently using ChessDB.cn, which seems to be a favourite of Lc0 and SF devs. Maybe I'll add Lichess in the future, I dunno. You can access this option via Display --> Online API.
• Don't report that the engine doesn't support Chess960 when this fact isn't known one way or the other.
• Marginally less confusing message when changing time limit.