Summary: Upgrade the database from PostgreSQL 17 to 18, including the Docker image, configuration and any migration steps, keeping the immutable audit log and logical replication features working.
Requirements: Bump the Postgres image to 18; verify logical replication flags still apply; provide a data migration/upgrade path; re-test immutable audit logs and Electric SQL replication; update documentation and docker-compose.
Acceptance Criteria: The stack runs on PostgreSQL 18; existing data migrates cleanly; logical replication and immutable audit logs continue to work; docker-compose and docs are updated; an upgrade runbook is provided.
Summary: Upgrade the database from PostgreSQL 17 to 18, including the Docker image, configuration and any migration steps, keeping the immutable audit log and logical replication features working.
Requirements: Bump the Postgres image to 18; verify logical replication flags still apply; provide a data migration/upgrade path; re-test immutable audit logs and Electric SQL replication; update documentation and docker-compose.
Acceptance Criteria: The stack runs on PostgreSQL 18; existing data migrates cleanly; logical replication and immutable audit logs continue to work; docker-compose and docs are updated; an upgrade runbook is provided.