KSP 0.13: Experimental Version (Update 1)

• Bug Fixes for X4:
• Increased the heat conductivity and heat dissipation values for all parts, to compensate for the new heat exchange system.
• Fixed the time quadrant on the UI being unresponsive to mouse clicks if there were part icons behind it.
• Fixed the staging quadrant being partially visible in the map view.
• Fixed a problem that made it possible to delete the command pod in the VAB by using Ctrl+Z.

Optimizations on X3:

• Tweaked the part heat exchange model, for a considerable fps boost with very large ships

New on X3:

• Added a new icon for the Fuel Line parts.
• Changed the icon grouping rule on RCS Blocks and Strut Connectors to group to all parts of the same type on it's stage.

New on X2:

• Pressing F2 will hide the UI completely (so you can take UI-free screenshots).

Bug Fixes on X2:

• Fixed the weird 'glass-like' artifacts in game during launch
• Fixed the parts not receiving mouse events on the VAB. This also affected collision detection on the VAB.
• Fixed the in-flight settings screen being drawn under the main UI.
• Tweaked the fuel tank surface attachment point. It was a little too close to the collider, and sometimes caused false collisions.
• Fixed a bug with the parts code that allowed them to bypass receiving gravity and drag forces if it's hierarchy root was destroyed.
• Fixed the map camera code so that it will remember where it was if you re-open it. (this tweak was left out of the X1 build apparently)
• Fixed the part icon numbers (when multiple icons are grouped) not being positioned correctly on a few resolutions.