We are currently trying to upgrade the network architecture of our Cloud SQL Postgres instance, but we are receiving an error message for 4 days that the architecture upgrade tool would be currently down.
The following message will be used for the patch API method.
{"name": "[DB_INSTANCE]", "project": "[PROJECT]", "settings": {}, "sqlNetworkArchitecture": "NEW_NETWORK_ARCHITECTURE"}
ERROR: (gcloud.sql.instances.patch) FAILED_PRECONDITION: The Network Architecture Upgrade tool is temporarily unavailable.
Hi @konradschewe
This error indicates a temporary backend issue with the Cloud SQL network architecture upgrade service, not a problem with your instance configuration. Since it has persisted for several days, I recommend opening a Google Cloud support case with your project ID and instance name so the Cloud SQL team can check the regional service status
Creating a ticket in this case helped to understand the problem.
It seems that there is a planned unavailability of the Network Architecture Upgrade tool, because there is a ‘bug’ in the upgrade operation. They will fix it until the end of February 2026.
This is a snippet from the Google support’s response:
Cloud SQL is temporarily pausing support for upgrades to the new network architecture until the end of February 2026, to address a technical issue impacting the upgrade operation [1].