Last news I've seen is https://www.avweb.com/air-shows-events/unleaded-avgas-all-on-the-same-page-not/ https://www.avweb.com/air-shows-events/unleaded-avgas-all

Last news I've seen is https://www.avweb.com/air-shows-events/unleaded-avgas-all-on-the-same-page-not/ https://www.avweb.com/air-shows-events/unleaded-avgas-all-on... There's also some news at https://www.faa.gov/about/initiatives/avgas/ https://www.faa.gov/about/initiatives/avgas/ , but nothing substantial..