Feb 8
Discard rubble physics
It adds so much problems and lags meanwhile the gameplay benefits are miniscule. A lot of servers fully remove the rubble which is a sign that maybe it was not a great idea after all.
Maybe instead of full simulation it could be fake: on the rubble creation moment the game should create them on the closest best stable position and play a simple parabolic movement animation from the mined block. Heck, to save on calculations since the world is a perfect grid all the possible positions could be precalculated and rubble could take free positions within the cone under the destroyed block.
Pending