Note: Oops - I wrote this a week ago and forgot to post it. 10.35 will probably "go final" shortly.
If you haven't tried X-Plane 10.35, please do. Check "get betas" in the updater to get it. Just one bug fix and a license file in the release candidate. A Steam RC should come soon.
Chris took a sledgehammer to the Windows build materials for the scenery tools and pretty much rebuilt everything for Windows; I'll have betas in a day or two.
UPDATE: The RC is available on Steam also. To get it, right-click on X-Plane in the Steam library, click the "BETA" tab, and then select the beta to opt-in to.