Addon SDK v2; Better video support; Prompt on close & lots more.
I strongly suggest allowing us to stay on the current release version (r388.2), which is possible, but having export-related updates released to that version as well. (Maybe linking these updates to the export service)
Updates like Targeted API from Google, Cordova updates, IOS, etc..
This way, we can preserve our current projects exportable at anytime with up-to-date APIs, and you can go forward with SDK2 as you like. Sounds win-win for both to me.
All Construct releases for at least the next year will still support all existing addons. There are more details about the schedule in this thread.
I don't think you quite understood what I meant, here's a detailed proposal: github.com/Scirra/Construct-feature-requests/issues/261