DNS Server - Is the DNS_SERVER variable deprecated?

[peter-smith-phd]

When I use set the DNS_ADDRESS environment variable, as suggested by this page, I get the following error.

Non-prefixed environment variable DNS_ADDRESS is forwarded to the LocalStack container! Please use `LOCALSTACK_DNS_ADDRESS` instead of DNS_ADDRESS to explicitly mark this environment variable to be forwarded form the CLI to the LocalStack Runtime.

Should the instructions instead mention LOCALSTACK_DNS_ADDRESS?