Before this release, when you created a subnet, you specified which security lists, route table, and set of DHCP options the subnet would use, and you couldn't change those choices later. With this release, you can now edit those aspects of a subnet after it's created.

The Oracle Cloud Infrastructure Console now includes an Edit Subnet dialog where you can change these aspects of the subnet:

• Subnet name
• Which security lists the subnet uses
• Which route table the subnet uses
• Which set of DHCP options the subnet uses

The REST API UpdateSubnetDetails object now includes optional attributes for changing the security lists, route table, and set of DHCP options the subnet uses. Remember that a given subnet can use multiple security lists. The set that you provide in the UpdateSubnetDetails object entirely replaces the existing set.

Regarding required IAM permissions: You must have an IAM policy that grants you the ability to manage these IAM resource-types: subnets, route-tables, security-lists, and dhcp-options (or simply the virtual-network-family). In general, if you can create and delete subnets, you can also change which components a subnet uses.