After a lot of development work spanning half a year, and a period of thorough testing on the Experimental Branch, the long-awaited 1.5.0 Milestone update has finally been released to the public.

Changelist

• Added: Surtur environment. 3 times bigger than all other Liftoff levels combined!
• Added: 4 official racetracks for Surtur.
• Updated: new in-game interactive tutorial.
• Updated: switching to a different game mode, track or race within the same environment in single player will reload the game instantly, without going through a loading screen.
• Added: a couple more Steam achievements.
• Added: test your track and race right from within the track editor.
• Added: a new track item to place the player character position on the track.
• Updated: in the multiplayer lobby, your times are displayed first now in the leaderboard ticker, followed by the top 3 pilots.
• Updated: The game engine received an update. This should include some fixes regarding input latency on Linux while using Vulkan rendering.
• Added: A.I. opponents for The Green Race 06.
• Added: Popup warning when a game shortcut is made outside of Steam. The game now checks whether the connection with Steam has been successfully made and warns the user otherwise.
• Updated: multiplayer service plugin to reduce small memory allocations.
• Updated: the Short Circuit environment to include the Pitlane tournament winner's names on the paddocks.
• Updated: the track editor now provides more feedback to user actions (e.g. popup when saving) and shows proper warnings when leaving when there are unsaved changes.
• Updated: when walking around in the track editor or in free flight, you can adjust the movement speed by scrolling up/down to get across maps faster.
• Updated: the trigger boxes now have a highlight at its outline when touching other objects.
• Updated: the memory footprint has been greatly reduced by loading assets more on a need-to basis rather than always staying in memory. Several textures and audio files have also been updated to require less memory. This reduces the memory pressure by a total of 2GB.
• Updated: the level loading process to perform less full-level scans to find certain objects. This should reduce loading times.
• Updated: on Apple Silicon devices, Liftoff will now run natively instead of through the Rosetta translation layer.
• Fixed: several audio sources in levels would not be correctly linked to their audio volume setting.
• Fixed: a memory leak caused by track items and race checkpoints not being cleaned up properly after leaving a level.
• Fixed: issue where a toggle would incorrectly appear in the freestyle score screen.
• Fixed: the drone HUD of the DJI drone would still be displayed, even if different drone setup was enforced.
• Fixed: not being able to sign in to the multiplayer when the splash/startup screen was skipped.
• Fixed: the Liftoff Pro level value would not display correctly.
• Fixed: a game crash when trying to open a gift box.
• Fixed: a memory leak with lingering server calls.
• Fixed: when finishing a race or freestyle session, the player's flight drone might sometimes be visible in the background.
• Fixed: loading screen messages might sometimes not display properly.
• Fixed: when starting Liftoff on different displays, it might sometimes start with a resolution of 0x0. This should not happen any longer.
• Fixed: the Liftoff Pro credentials file can sometimes get corrupted. This would prevent the player from signing in.
• Fixed: throttle issue that could result in inverse thrust.
• Fixed: when switching to walking in free flight, some drone settings were reset (camera angle, flight mode).

TLDR