2.4.4 deals mainly with multiplayer fixed, but also adds a cool new system called "annotations" (accessible from the vehicle V menu and visible when the game is paused, or in build mode)
It also makes a really nice quality of life change to the UI where holding middle mouse or holding E (both rebindable) allows the "mouse look" in all interfaces. Keyboard moving of the camera is already active in UIs so now you can really explore things whilst you have a UI open.
A number of other bugs have also been fixed, but are small and as such I did not put them into the change log.
v2.4.4 [Add] <Game>: Added 'annotation' options for vehicles (accessible from V menu). These are visible when the game is paused (F11) or you are building on the design. See DWG 'Duster' for first examples.
v2.4.4 [Add] <UI>: Holding middle mouse or pressing E allows you to 'mouse look' from inside an open user interface. Available in almost all UIs. Rebindable in the options menu.
v2.4.4 [Fix] <AI>: [BUGS-763] Bug with 'above' type adjuster for naval behaviour fixed (caused issue with broadside)
v2.4.4 [Fix] <Blocks>: [BUGS-753] Auto-orientation of custom jet engine extension parts fixed
v2.4.4 [Fix] <Blocks>: [BUGS-767] Bug with ACB setting GP-PID type triggering the pre-2.4.0 vehicle migration code for assigning hover thrusters now fixed
v2.4.4 [Fix] <Breadboard>: [BUGS-758] Propulsion and drive breadboard modules no longer act when vehicle is being tractor beamed by friendly docking station
v2.4.4 [Fix] <Fortress>: Fortress manoeuvre and behaviour routines now have a default setup migration for the 'adjuster'- this will keep them at sensible altitudes
v2.4.4 [Fix] <Fortress>: Fortresses can now turn under AI control
v2.4.4 [Fix] <Missiles>: [BUGS-740] large gantries only connect when they are exactly lined up with the launch pad (odd configurations used to be possible)
v2.4.4 [Fix] <Missiles>: [BUGS-759] Missiles fired / reloaded during a warp jump are now the correct size
v2.4.4 [Fix] <Multiplayer>: [BUGS-709] Breadboards will sync changes correctly in multiplayer now
v2.4.4 [Fix] <Multiplayer>: [BUGS-738] Copy Paste now synchronises in multiplayer
v2.4.4 [Fix] <Multiplayer>: [BUGS-738] Reset buttons on the UI (such as those for propulsion blocks) now correctly sync in multiplayer
v2.4.4 [Fix] <Multiplayer>: [BUGS-739] 'Repair Other' repair beams now render on the client as well as the host in multiplayer
v2.4.4 [Fix] <Multiplayer>: Fixed various issues retrofitting a vehicle with stacked subconstructs
v2.4.4 [Fix] <Multiplayer>: Fixed various issues with new vehicles built in multiplayer not syncronising data
v2.4.4 [Fix] <Multiplayer>: Fixed various issues with sub vehicle spawners and syncronisation of the drone/mothership states
v2.4.4 [Fix] <Multiplayer>: Spawning a vehicle with drones no longer creates issues
v2.4.4 [Fix] <PAC>: Fixed issues with PAC melee lens and made it a lot more damaging
v2.4.4 [Fix] <SVS>: Drone and mothership links are maintained until the SVS block is permanently removed from the design (not just killed), or the UI is used to disconnect the drone.