There's a new automatic patch for Madballs in... Babo:Invasion available through Steam with a "Minor tech update to incorporate newer Steam libraries." There's also a considerably more substantial patch that's automatically available for Altitude that adds plane skins, new maps, and a quite extensive list of ball mode improvements. Finally, a new patch for Serious Sam HD: The First Encounter is now automatically available through Valve's digital distribution system, adding demo recording and playback among a lengthy list of changes, which is reproduced here.

• Demo recording and playback added.
  • Works in single player, on server and on client.
  • Can record demo segments while playing a demo.
  • Recording started from menus, or using F7 in game.
  • Hud shows current recording or playback status.
  • Cutscenes cannot be recorded - recording is automatically stopped when a cut scene is encountered.
• Changed the alignment of all table items in the join game menu from centered to left aligned.
• Some widgets in CPU performance customization options were not functional.
• Leaderboards menu now supports double click on leaderboard players for details.
• 3rd person view mode now persists when respawning.
• Bullet fly-by sounds were sometimes played for the wrong player.
• The rocket model in the first person RL weapon would sometimes dissapear/flicker. Fixed.
• Fixed flashing crumbs when prebaked lights are used.
• net_fConnectionTimeout was not honored by the "Connecting" progress screen, thus limiting it to 10 seconds of its hardcoded value.
• Fixed possible timing issue with sounds that have their pitch set too high resulting in unsupported frequency by the sound HW and/or API.
• Sound mixer frequency can now be 48/44 kHz or 22 kHz if cvar 'sfx_bLowSampleRate' is set. (Cvar 'xad_iMaxSampleRate' has been deprecated.)
• Fixed crash inside XAudio2 when sound HW supports sample rates higher than 100 kHz.
• Master sound mixer frequency (sample rate) and speaker config are now reported to console at startup.
  Better sound mixing performance of XAudio2 under sound boards that support very high sample rates (more than 48 kHz).
• Enabled DirectSound and OpenAL sound APIs. To change the current API, adjust sfx_iAPI and restart the game. Note that those APIs are not officially supported.
• Fixed boss bar not being shown in some rare cases.
• Fixed problem with crosshair sometimes being rendered wrong (flickering).
• Fixed problem with having too many occlusion queries under 3 or more GPU setups.
• Fixed a crash that happened in graphics options when user resets cvars via console cvarResetToDefaults() command.
• Fixed a rare application crash on exit that prevented settings from being saved. It happened mostly on single-core machines, but sometimes on multi-core as well.