Supported PostgreSQL versions #24210

The minimum is 13, and there isn't a documented maximum - they just test against recent versions (you see 17 in the compose.yaml example). The actual constraints are in the codebase, not docs.

Check coder/database/database.go or the dbutil package - that's where you'll find the version check logic. Coder uses pg_catalog.pg_get_indexdef and other features that landed in 13, so anything below that will fail at startup with a clear error about missing functionality.

I've run this with Postgres 14, 15, and 16 in production without issues. The main thing is sslmode=disable in your connection string works for dev but you want require or verify-full in prod.