Upgrading the TypeScript version of a package which is depended on many packages is painful

[kimamula]

There is a same issue submitted in DefinitelyTyped.

I found that if I want to introduce TypeScript >= 2.1 syntax into node/index.d.ts (I actually want to), I have to add // TypeScript Version: 2.x comment to more than 700 packages, which is too painful.

As proposed in the issue in DefinitelyTyped, this can be solved by applying the maximum typescript version from dependencies during the build.

Automating the addition of the version comment based on the maximum typescript version from dependencies would be another possible solution.