DOOM Retro v3.5.5 is now available, in both 32 and 64-bit binaries. Its release notes are as follows:

• Optimizations have been made to further improve the overall performance and stability of DOOM Retro.
• Minor changes have been made to text that is output to the console.
• The music volume is now lower while either the menu or console is open.
• The following changes have been made to the menu’s background:
  • The random noise is now slightly slower.
  • Liquid sectors now still animate in the background when the menu is open.
• The following changes have been made to the widescreen HUD:
  • Health, armor and ammo now flash gold rather than white when they change.
  • Keycards and skull keys that the player picks up are now slightly higher.
• Brightmaps are no longer applied to the SLADRIP1, SLADRIP2 and SLADRIP3 textures when the r_brightmaps CVAR is on.
• The timer displayed by the timer CCMD will now be positioned lower if the vid_showfps CVAR is on.
• More fixes have been applied to certain maps in the official DOOM and DOOM II WADs when the r_fixmaperrors CVAR is on.
• The mapstats CCMD now displays the release date for maps in the official DOOM and DOOM II WADs.
• The translucency of item and teleport fogs is no longer additive when the r_translucency CVAR is on.
• Due to a change in the latest patch of the Bethesda.net Launcher version of DOOM II, MAP04 to MAP08 in No Rest For The Living now use the SKY3 texture as their skies.