Weapons, ammo and equipment had a large-scale refactor internally to optimize performance and prepare for the eventual addon framework

Weapon, grenade and ammo spawns are pooled and reused on maps to optimize round reset behavior

Weapons, grenade and ammo spawns will now spawn based on the current player count

Pickups and props that were mistakenly placed out of bounds by mappers and fall infinitely are destroyed

Several weapon world models had their physics hulls reworked to improve performance and physics reactivity

Corpses had a major refactor internally to optimize for performance; much smoother ragdoll behavior on death

Quite a bit of networked VFX (Muzzle flashes, tracers, explosions and so on) were optimized for performance

XMovement networking expenses like synced fields for proxy animation have been reduced and optimized

Animation state of proxy players was introduced to optimize network performance

The player's physics colliders have been optimized for performance

The world visibility of the player's body and held weaponry were optimized for network performance

Dying and entering spectator mode visual transitions are more fluid

C4 and barrel explosions were optimized for network performance, as well as their interaction with nearby props and gibs

Trigger volumes and other map tools were optimized for network performance

Network visibility culling for props, weapons and corpses to reduce network traffic