From Kerbal Space Program Wiki
Version 0.21.1 was released on 24th July 2013.
Bug Fixes and Tweaks
- Removed some unused assets from KSP/Parts.
- Fixed an issue with some scenery meshes that could cause bits of the UI to become unresponsive in some cases (mainly in the VAB and SPH).
- Tweaked some object scales slightly.
- Tweaked the ocean color at sea level on Kerbin (was way too dark).
- Fixed an issue that would cause lag while moving parts around the editor scenes if too many crews were hired at the same time.
- Fixed an issue with the new SAS not properly maintaining attitude. Should be much better now.
- Tweaked some parameters on the SAS to make it more responsive.