Amazon Aurora supports rolling upgrades for Operating System upgrades
Amazon Aurora announced rolling upgrades support for Operating System (OS) upgrades. Aurora now seamlessly upgrades the OS version of Aurora database clusters while maintaining read access to the data when using Aurora cluster or reader endpoint. The feature automatically applies upgrades to a few reader instances at a time so the database can continue serving read traffic for clusters with more than one reader instance.
Rolling upgrades enables customers to maintain read availability during OS maintenance activity for clusters with more than one reader instance. Rolling upgrades will automatically be used for all OS upgrades. Customers can now also use existing cluster level AWS CLI commands or AWS console commands to perform OS upgrades and there are no additional API calls or console clicks required. To learn more about how to upgrade the Operating System of your Aurora cluster, you can view the technical documentation. The feature is available all AWS regions where Amazon Aurora is available.
Amazon Aurora is designed for unparalleled high performance and availability at global scale with full MySQL and PostgreSQL compatibility. It provides built-in security, continuous backups, serverless compute, up to 15 read replicas, automated multi-Region replication, and integrations with other AWS services. To get started with Amazon Aurora, take a look at our getting started page.