docs: postgresql 18 warning (#11871)

Added a callout to the Kubernetes deployment guide (`Deploy ZITADEL on
Kubernetes`) explicitly stating that PostgreSQL 18 is not currently
supported, ensuring users deploy with a compatible version (14-17).
This commit is contained in:
Federico Coppede
2026-03-18 12:23:16 -07:00
committed by GitHub
parent 80a20e9680
commit ae32508225
@@ -91,6 +91,10 @@ For production you need:
- PostgreSQL 14+ (managed service or in-cluster)
- Helm 3.x+
<Callout type="warn">
**PostgreSQL compatibility:** ZITADEL supports PostgreSQL **14–18**. When using **PostgreSQL 18**, ensure you run **ZITADEL v4.11.0 or newer**. For the most up-to-date compatibility matrix and configuration details, see [Database requirements](/self-hosting/manage/database).
</Callout>
<Callout type="warn">
The ZITADEL management console [requires end-to-end HTTP/2 support](/self-hosting/manage/http2). Ensure your ingress controller is configured to forward HTTP/2 (h2c) traffic to ZITADEL pods.
</Callout>