Visual Builder: Validation rule to prevent backdate of more than one year

Summary:

I am looking to set up a validation rule to prevent users from entering a Change Salary transaction with an effective date (When does the salary change start?) that is more than one year prior to the current (system) date. The transaction should return an error message.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

26C

Code Snippet (add any code snippets that support your topic, if applicable):