Updating the DB Engine and OS of a DB Instance

To improve database performance and security, the OS of an RDS for SQL Server instance needs to be updated timely.

Every time you upgrade the kernel version of your instance, RDS for SQL Server determines whether to update the OS and selects the right cold patch to upgrade it if necessary.

Updating the OS does not change the DB instance version or other information.

The DB engine and OS of an RDS for SQL Server instance cannot be upgraded automatically during the maintenance window you specified. To upgrade them, submit a service ticket. Huawei Cloud engineers will help you upgrade the DB engine and OS if necessary.

Huawei Cloud still installs hot patches as required to fix the vulnerabilities that may have major impacts on the DB engine or OS.