In a word: YES. Update TS regularly to avoid making updates hard and lagging behind to much. Unlike a runtime framework, updates are unlikely to break things a

In a word: YES. Update TS regularly to avoid making updates hard and lagging behind to much. Unlike a runtime framework, updates are unlikely to break things at runtime, so there are no reason not to update very often. If some external types are wrong or annoying, don't forget _any_ exists and simply brings you back to the crappy situation you'd have without TS (well admittedly it adds transpilation costs, but it's still type checking everything else, which is well worth it). I think TS is nearly the best language that could be done given the constraints of being fully compatible with JS.