Use the Change Signature &shortcut:ChangeSignature; refactoring to add, remove, or reorder function parameters, change the return type, or modify the function name. Change Signature affects all the usages of the function, including calls, implementations, and overriding replacements.

For example, you can add new parameters to the function and change its name. Make the necessary adjustments in the refactoring dialog. To check the changes before applying them, click Preview.