Get your Kerbal on! Update .18 released.

The latest, and possibly greatest, update to Kerbal Space Program has just been released, featuring:

* Docking
Connecting vessels together is now possible! Build space stations, surface bases, or assemble huge spacecraft in orbit.

* Flight Planning
Getting to other planets and moons just got a lot simpler. Place maneuvers along your orbit to create a flight plan, and then just follow the guidance cues. No need to figure out angles or hold a protractor to the screen!

* Action Groups
A new way to control your ships! Instead of having everything done through staging, you can assign parts to groups that are controlled with a keypress. Set up Abort systems, or rig up complex contraptions. Or just let the game handle it automatically.

* New Resources System
Watching fuel drain has never been so much fun! New resources allow for completely new possibilities. Energy, Fuel, Oxidizer and other resources now flow through your ship. Manage them as you fly, and pump them across parts.

* Music
KSP now has its own soundtrack, featuring many cool tracks, from smooth jazzy tunes to build ships by, to wondrous spacy themes as you explore the solar system.

* Performance Tweaks
New terrain optimizations and a system to prevent lag by slowing the simulation make for a significant improvement in performance.

Check out the video below to see some of these new enhancements in action!