# DeprecationsThis document lists all the planned deprecations.## Handlers will be removed in 2.0The `Handler` type and associated calls will be removed in version 2.0.### Upgrade pathYou should create your own implementation for handling OOP usage,but it's recommended to move away from using an OOP-style wrapper entirely.The reason for this is that it's too easy for implementation details (foryour application this is Flysystem) to leak into the application. The mostimportant part for Flysystem is that it improves portability and creates asolid boundary between your application core and the infrastructure you use.The OOP-style handling breaks this principle, therefore I want to stoppromoting it.