If you have a really last database, and this will save little hours, feel time. And then there's of course pattern 3.11, which brings a whole bunch of new feature that I have not feel able to yet incorporate in the type guard. The project type guard is another one you have, not super complicated, but an interesting capability to grab on. Also one of those that are on major of a version of a major release, I certainly have not had enough time to finish the next major version.