Thaumcraft has been updating a lot. The current version of the API is 4.0.2. This is just a reminder to include the latest version of the Thaumcraft API in your next release.

Unless it's causing a crash, please don't report these sorts of things. We probably have several other outdated APIs too but the fact of the matter is, unless it's actually causing a major bug, it's not of concern. Especially in the case of Thaumcraft, where we'll be notified practically immediately by another Forgecraft member if an issue arises due to such a problem.