DOOM Retro v2.6.5 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.
• A bug has been fixed whereby the wrong description would be displayed when entering a CVAR without a value in the console.
• The rendering of two-sided textures has been improved.
• The widescreen HUD has been completely redesigned and now includes the player’s face instead of a medikit.
• The r_althud CVAR is now off by default.
• When the r_textures CVAR is off, shadows cast by monsters are now still translucent when the r_shadows_translucency CVAR is on, and BOOM-compatible translucent wall textures are now still translucent when the r_translucency CVAR is on.
• A crash will no longer occur when picking up an invulnerability power-up on the same map after loading a savegame.
• The playername CVAR is now used instead of “OUR HERO” when displaying the player in DOOM II’s cast sequence.