Thanks for the explanation. My use case is replacing patroni with pgdog. DDL replication would be required for this.

Is there some way I can get updates about pgdog and especially when the replication you mentioned is there?

Absolutely. We do weekly releases here: https://github.com/pgdogdev/pgdog/releases. Each release includes a detailed changelog.

I believe you can use an RSS reader if those are still in vogue, e.g.: https://github.com/pgdogdev/pgdog/releases.atom.