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MAJOR: immich v3.0.0 drops pgvecto.rs support and requires VectorChord. Our pin was already VectorChord, so fresh deploys are unaffected; an in-place update from a pgvecto.rs-era install would need the upstream migration first. Postgres sidecar moved to the vectorchord/pgvectors extension versions immich v3.0.3 ships in its own compose (0.4.3 / 0.2.0), keeping our PG major (16) rather than upstream's 14 to avoid a needless major change. NOTE (recorded, not fixed): upstream v3 migrated redis -> valkey:9. Kept redis:7-alpine here; the swap is a structural change, not a pin bump. Campaign 7 catalog sweep. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Nn3VgQk9iwEGgyx6QJ2NvE