Why are some data types or functions made Obsolete in a newer version of an API and others are marked as Deprecated? Why not make them all Obsolete or why not make them all Deprecated?
Why are some data types Deprecated while others Obsolete?
programming languages;terminology
Deprecation typically serves as a warning that a feature is no longer in favor with the designers of the language. The reasoning for this is one of reverse compatibility. It gives the users of a language time to adjust their code before the language drops those features. It can also serve as a migration path to a new version of a given feature. The feature in question might be retrofitted at some point in the future or rendered obsolete and removed.