DOOM Retro v3.2.1 is now available, in both 32 and 64-bit varieties. Its release notes are as follows:

• Optimizations have been made to further improve the overall performance and stability of DOOM Retro.
• DOOM Retro will now attempt to use Adaptive VSync if the vid_vsync CVAR is on and the vid_scaleapi CVAR is “opengl”.
• A bug has been fixed whereby some monsters wouldn’t attempt to fire at the player as often as they should if another monster was in the way.
• Further improvements have been made to the console’s autocomplete feature.
• Minor changes have been made to text that is output to the console.
• Minor improvements have been made to the menu’s background.
• A bug has been fixed whereby blood splats around crushed corpses could appear black in some rare instances.