= Old Admin Console removed

In Keycloak 19 the new admin console was graduated to the new default admin console, and the old admin console was
deprecated. In this release the old admin console has been removed completely.

= Keycloak uses Micrometer for metrics

Keycloak provides an optional a metrics endpoint which exports metrics in the Prometheus format.
In this release the implementation to provide this data switched from SmallRye to Micrometer.
Due to this change, metrics have been renamed.

See the migration guide for details.

= Hashicop Vault no longer supported

We removed the out-of-box support for Hashicorp vault in this release.

See this https://github.com/keycloak/keycloak/discussions/16446[discussion] for more details.