The particular case that I was referring to when I said I decided to put off changes because I didn't want to bump the version number was actually a stylistic change, renaming a method from `parse(with:)` to `parse(using:)`, in order to better match the Swift 3 naming conventions. Normally I would have just marked the old method as deprecated, except a compiler bug means that if I do so, any code using trailing-closure syntax fails to compile (https://bugs.swift.org/browse/SR-3227). So it's literally impossible for me to rename this method in this manner without deleting the old method entirely (which is a breaking change). But I just bumped the major version number recently when Swift 3 was released, and I didn't want to bump it again shortly afterwards just because I didn't consider this method name during the Swift 2->3 migration.