DOOM Retro v2.3.3 is now available. It may be downloaded here, and its release notes are as follows:

• Optimizations have been made to further improve the overall performance and stability of DOOM Retro.
• The limited MIDI support in Windows Vista and above has now been overcome, allowing the music volume to be adjusted independently of the sound effects volume. To allow this to happen, an additional file called midiproc.exe is now included and needs to remain in the same folder as doomretro.exe.
• The s_musicvolume CVAR is now 66% by default.
• The r_diskicon CVAR is now off by default.
• Minor changes have been made to text that is output to the console.
• The console will now fill the entire screen when opened using the ~ key on the title screen.
• The scrollbar in the console is now hidden if all the text in the console fits entirely on the screen.
• The extreme edges of both the menu and console backgrounds have been softened slightly.
• DOOM Retro’s title and version in the console are now white.
• A bug has been fixed whereby using the map CCMD when no game was being played would cause a crash.
• The player will now be thrust away with the correct amount of force when attacked by an Arch-vile, or within the blast radius of a rocket or barrel explosion.
• A time limit for each map can now be set using the -timer command-line parameter.