getParameterHistory

Retrieves the history of all changes to a parameter.

Parameter names can't contain spaces. The service removes any spaces specified for the beginning or end of a parameter name. If the specified name for a parameter contains spaces between characters, the request fails with a ValidationException error.

If you change the KMS key alias for the KMS key used to encrypt a parameter, then you must also update the key alias the parameter uses to reference KMS. Otherwise, GetParameterHistory retrieves whatever the original key alias was referencing.