Can PostgreSQL 19 replace an existing major version in place?
A major-version upgrade requires a documented migration path such as pg_upgrade, dump and restore, or logical replication. Operators should rehearse the chosen method against a representative copy and verify application compatibility.
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PostgreSQL 19 Is Still an RC. Start the Upgrade RehearsalPostgreSQL 19 RC1 is not a production release. Review its maintenance and replication changes, then rehearse compatibility and rollback before the planned GA.
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