X-Plane 10.40 RC1 went live last night – see the release notes for bug fixes.
If your add-on works in 10.36 but does not work in 10.40, please tell us four weeks ago. (But if you haven’t tested your add-on, please do so ASAP!)
If you find something is broken in 10.40r1 that works in 10.36 please file a bug ASAP!
Note that we do have a number of valid bugs filed that will not be fixed in 10.40 – these are mostly bugs present in both 10.36 and 10.40. The goal with 10.40 is to get digital download final and not introduce new bugs.
If we don’t find a major “oh noes” over the weekend, we’ll look at getting rc1 onto Steam as a beta on Monday.