X-Plane 10.20 rc2 is out - just a few crash fixes and the final code to support Lua-based add-ons.
If you make a third party add-on, please: go try your add-on with 10.20 rc2 now!
If we don't find any new bug reports, 10.20 will go final next weekend.
Edit: the Kingair is, weirdly, missing a small panel of its fuselage in the right rear corner. Tom has already edited the file and I'll post it shortly. I'm going to let the RC sit for a day or two to see if anything else washes up.