Guides on backward compatibility & deprecated practice¶

Setuptools has undergone tremendous changes since its first debut. As itsdevelopment continues to roll forward, many of the practice and mechanisms ithad established are now considered deprecated. But they still remain relevantas a plethora of libraries continue to depend on them. Many people also findit necessary to equip themselves with the knowledge to better support backwardcompatibility. This guide aims to provide the essential information for suchobjectives.