A method may include first executing an operation of an application using a function call of a first version of a package of the application; first detecting, by the application, an error in the first executing; in response to the first detecting, second executing the operation of the application using a function call of a second version of the package of the application; second detecting, by the application, that no error occurred during the second executing; and in response to the second detecting, electronically logging an error with respect to the function call of the first version of the package.