This one has a number of balanced tweaks that are notable, as well as one performance tweak that may or may not actually do anything. We'll be curious to hear more feedback on the performance thing a wider variety of scenarios and machine setups.
In terms of the balance changes:
1. The Spirecraft Martyrs have been hit with the nerf bat really hard, thanks to player urging.
2. The Zenith Virtal Shredders have as well, but in general their swarm mechanics have also been simplified.
3. And lastly, super-stacked forcefields have also been heavily nerfed. Stacking forcefields is still a smart thing to do, but you can no longer set up a chain of them where one is being repaired under the next in an endless rotation.
There was also a bugfix to the recently-added ActivateHighestEfficiencyLowPowerEnergyReactor and PutLowestEfficiencyActiveEnergyReactorIntoLowPower keybinds.
This is a standard update that you can download through the
in-game updater itself, if you already have 4.000 or later. When you
launch the game, you'll see the notice of the update having been found
if you're connected to the Internet at the time. If you don't have 4.000 or later, you can download that here.