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Fleet management will be easier in PostgreSQL 17 when you can turn off alter system commands. This helps folks like Doug Hunley who manage Postgres at scale with file-based deployments because they can ensure runtime users don’t alter system configs in an attempt to override the deployed file-based config settings.

Xata is an interesting serverless Postgres provider that happens to open source a lot of their stuff, like zero-time migration tooling and replication that supports DDL changes.