Sorry for the slow reply here @GregorSondermeier @SteveCH in Announcing Strapi v4 with a new UI, Plugin API, Query Engine and more we said “We will keep supporting v3 and fixing critical bugs for at least six months.” we later extended that to Dec 31st 2022 in Extending v3 support beyond september 2022 - #2 by lolafkok . In case you missed it, we have a lot of resources on how to migrate Strapi v3 to v4 Migration Resources : Support Portal