-Locked Red Chests in the starting room of Chapter 6 will be armed with Spikes, damaging the player on contact (this can be mitigated with Flat File). However, they will also always pay out with a Devil item
-Removed Locked Red Chest spawns from Challenge Rooms due to the API not having proper support for them. To compensate, the default Locked Red Chest replacement chance was increased from 5% to 8%
-Forgotten's bone swing and other similar melee attacks can now open Locked Red Chests (if you have a Key obviously)
-Red Key/Cracked Key will open any Locked Red Chests in the room when activated
-Increased chance to not use a Key from Mom's Box synergy from 20% to 25%
-Fixed Options? item not properly working with Locked Red Chests
-Fixed shadow size of custom chest pedestals (I wanted to fix more but this is the best I could do)
-Many code optimizations and improvements

Red Chests at the start of Dark Room will only be replaced by Locked Red Chests if you hold the Crimson Lock. These chests will always pay out with a Red Chest item.

-Locked Red Chests can replace Red Chests with a 5% chance if you don't have the Trinket.
-You can no longer freely swap Locked/Unlocked Red Chests by dropping/picking up the Trinket. You still can turn existing Red Chests into Locked ones, but not revert them. (This is for balance reasons and to also make the previously listed new feature possible.)