Terraform 1.15 Alpha: Variable and Output Deprecation
Terraform has been iterating a lot more in the past few months introducing features or updates to the core binary which were always desired. Looking at the release notes of v1.15.0-alpha20260204 version , you see a few gems.
You can set a deprecated attribute on variable and output blocks to indicate that they are deprecated. This will produce warnings when passing in a value for a deprecated variable or when referencing a deprecated output.