[Hyperdrive] Document restarting configs from the dashboard

src/content/changelog/hyperdrive/2026-08-07-hyperdrive-restart-configuration-dashboard.mdx

@@ -0,0 +1,19 @@
+---
+title: Restart a Hyperdrive configuration from the dashboard
+description: Restart a Hyperdrive configuration to drain its connection pool and establish new connections to your database.
+products:
+  - hyperdrive
+date: 2026-08-07
+---
+
+You can now restart a Hyperdrive configuration from the Cloudflare dashboard. Restarting a configuration drains its connection pool and establishes new connections to your origin database.
+
+To restart a configuration, select your Hyperdrive configuration in the [Cloudflare dashboard](https://dash.cloudflare.com), go to the **Settings** tab, and select **Restart** under **Danger zone**.
+
+Use a restart to rebuild the connection pool during a database failover or a similar event, without recreating the configuration. After a configuration has been restarted, the **Settings** tab shows when it was last restarted.
+
+:::caution
+Restarting a Hyperdrive configuration drops all active connections in your connection pool and forces them to be re-established. In-flight queries may see brief errors while the pool rebuilds.
+:::
+
+For more information, refer to [Connection pooling](/hyperdrive/concepts/connection-pooling/).

src/content/docs/hyperdrive/concepts/connection-pooling.mdx

@@ -24,6 +24,16 @@ Hyperdrive will automatically scale the amount of database connections held open
 
 The `max_size` parameter acts as a soft limit - Hyperdrive may temporarily create additional connections during network issues or high traffic periods to ensure high availability and resiliency.
 
+## Restart the connection pool
+
+Hyperdrive manages the connection pool for you. You can also restart the pool manually from the Cloudflare dashboard. Select your Hyperdrive configuration, go to the **Settings** tab, and select **Restart** under **Danger zone**.
+
+Restarting a configuration drains the existing connection pool and establishes new connections to your origin database. Use a restart to rebuild the pool during a database failover or a similar event, without recreating the configuration.
+
+:::caution
+Restarting a configuration drops all active connections in your connection pool and forces them to be re-established. In-flight queries may see brief errors while the pool rebuilds.
+:::
+
 ## Pooling mode
 
 <Render file="pooling-mode" product="hyperdrive" />

src/content/docs/hyperdrive/configuration/rotate-credentials.mdx

@@ -60,5 +60,5 @@ npx wrangler hyperdrive update <HYPERDRIVE_CONFIG_ID> --origin-host <YOUR_ORIGIN
 ```
 
 :::note
-Updating the settings of an existing Hyperdrive configuration does not purge Hyperdrive's cache and does not tear down the existing database connection pool. New connections will be established using the new connection information.
+Updating the settings of an existing Hyperdrive configuration does not purge Hyperdrive's cache and does not tear down the existing database connection pool. New connections will be established using the new connection information. To drain the existing pool and force new connections immediately, [restart the connection pool](/hyperdrive/concepts/connection-pooling/#restart-the-connection-pool).
 :::