We are currently investigating an issue affecting Aiven for PostgreSQL services, where a major version upgrade can leave the service in an unusable state.
We advise customers not to initiate a PostgreSQL major version upgrade at this time. If you have already started a major version upgrade and your service is not responding, please contact our support team at support@aiven.io.
Our engineering teams are actively working to identify the root cause and restore affected services. We will provide further updates as soon as more information is available. We apologize for the inconvenience.

We have completed our mitigating actions and the creation of new nodes for services on the Aiven platform has returned to normal.
Customers can now proceed with any operations that were delayed during this issue, including service creation, scaling, upgrades, maintenance updates and configuration changes. Operations that were left pending should continue automatically.
Our engineers continue to monitor the platform to confirm the issue is fully resolved.
We apologise for the inconvenience caused by this issue. We will provide a further update as our team completes monitoring of this situation.