- Services: Networking
- Release Date: Nov. 12, 2020
You can now update VCN and subnet CIDR block information after creation:
- A VCN now supports up to five /16 CIDR blocks.
- You can add or remove CIDR blocks from a VCN.
- You can expand or shrink the size of CIDR blocks in use by VCNs, subnets, and VLANs.
- There is validation in place to make sure shrinking a CIDR block will not affect an IP address that is in use.
For more information, see the documentation articles on VCNs and Subnets.