Patch release for 1.13 that fixes incorrect behavior and improves the stability of the engine.

• Multiplayer: Crash when joining a multiplayer game using the Vanilla appearance profile
• Multiplayer: Crash when more than one clients join a game
• Multiplayer: Missing busy mode transition frame when joining a game
• UI: Using keyboard bindings when a popup is open in the UI (e.g., pressing F11 to toggle screen when the DE menu is open in the task bar)
• Audio: Momentary pause during MIDI playback when looping (fixed in upgraded SDL and SDL_mixer in the Windows package)
• OS X: Shell uses the wrong UI font

• Added the -nodiscovery option to prevent Doomsday from looking for running servers on the LAN

• Roadmap: 1.13.1
• 1.13 release notes