I just looked up again https://www.auswaertiges-amt.de/en/v...eUndAufenthalt, and there was an update on March 31 related to “Details on requirements for the proof of vaccination”.

It now says: “The vaccination must have taken place with one or different vaccines approved by the European Union with at least two doses.” AND “ These requirements for vaccinations are in force until 30 September. From 1 October as a rule three doses of vaccine will be required.”

My interpretation is that the 270-day rule was dropped for the summer, and that booster shots are not required until October 1. Am I missing something?