Where are update notifications archived?

Hi.

Yesterday’s update notification mentioned Typing Interactive V2.0 and more specifically updates on the P to 0 transition due to interviews and feedback. I didn’t action that information immediately and now I don’t know where to look for this new knowledge. Where do I find the “release notes” / archive of these improvement messages so I can go to that lesson / video / audio and educate myself?

Kind regards
Schalk