* Support deprecation hints in comments * Simplify the project architecture
2020.3.0
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* Support automatic deprecation in the directory * Support customizing the deprecation handler
2020.2.0
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* Introduce parameter version_module in the deprecate decorator, to import the version dynamically * Removed magic version import
2010.1.0
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* Support alerting the users the deprecate version * Support testing with environment variables * Support automatically deprecate the expiry source code