Notes from the actual post: > When we shipped Bootstrap 3, we immediately discontinued all support for v2.x, causing a lot of pain for all our users out there.

Notes from the actual post: > When we shipped Bootstrap 3, we immediately discontinued all support for v2.x, causing a lot of pain for all our users out there. That was a mistake we won’t be making again. For the foreseeable future, we’ll be maintaining Bootstrap 3 with critical bug fixes and documentation improvements. The current plan is already keeping basic support in place for BS3, but no new features. That's probably just where we'll stay, then.