This patch tweaks visibility when moving and suppression.
While moving, units have increased visibility. Before this patch, this increase disappeared instantly after the unit stopped moving. Now, it persists for a brief extra duration (1.6 seconds currently). This should make moving units easier to spot and possibly engage.
Suppression move speed reduction is now -35% instead of -50%. Halving unit speed under fire simply felt too much.
The game's build pipeline has also been changed. This should have exactly zero consequences for most players.
Good luck on the battlefield