App Engine Flexible Environment Go Adopts Cloud SQL Auth Proxy v2 for Enhanced Security
Google's App Engine flexible environment for Go applications will transition to using Cloud SQL Auth Proxy v2 as its built-in sidecar for Cloud SQL connections. This change, effective August 2026, aims to provide modern security patches and support for MySQL 8.4 and later versions. Developers can adopt the latest proxy immediately by restarting their VMs or deploying new application versions. The update is crucial for maintaining secure and compatible database connectivity for App Engine Go services.
Features (1) ›
- App Engine flexible environment Go
Starting from August 2026, to provide modern security patches and support for MySQL 8.4 and later, the App Engine flexible environment uses Cloud SQL Auth Proxy v2 as the built-in sidecar container for connections to Cloud SQL. To use the latest Cloud SQL Auth Proxy container immediately, restart your VMs or deploy a new version of your application.
https://docs.cloud.google.com/release-notes#August_20_2026
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