Hi Tobias Wedelin,
Thanks for reaching out to Microsoft Q&A.
Currently there is no official documentation which can provide details on support for anon 2.0 however you can always refer to the documentation here - https://learn.microsoft.com/en-us/azure/postgresql/extensions/concepts-extensions-versions and here - https://learn.microsoft.com/en-us/azure/postgresql/flexible-server/release-notes for all latest releases in future.
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