Client devices having deployed an application may experience a crash of the application. For example, a first client device may experience a first crash having a first crash signature of the application. After experiencing the first crash, a first device identification of the first client device may be assigned to a first bucket designating one or more device identifications of client devices having experienced the first crash. Client devices having device identifications in the first bucket are provided with a first crash fix for the first crash, while a second client device is not provide with the first crash fix, where the application is deployed on the second client device and the second client device was not assigned to the first bucket.