usage of deprecated type or member outside deprecated code
i.e. of an HTML element. A deprecated element or attribute is one that has been outdated by newer constructs such as style sheets. Deprecated elements may become obsolete in future versions of HTML. However, due to legacy considerations, most of these elements will never be removed outright; however their continued usage moving forward is strongly discouraged. A current list of deprecated elements is provided in the Resources Section.
Refers to a class or method that is no longer important, and will probably cease to exist in the future.
(n.) A reference to a class, interface, constructor, method, or field that is no longer recommended, and which might not be included in a future version of a product.
Refers to a class, interface, constructor, method or field that is no longer recommended, and may cease to exist in a future version.
When new releases of specifications are released, some older features may be marked as being deprecated. This means that new work should not use the features and that although they are supported in the current release, they may not be supported or available in future releases.
In computer software standards and documentation, the term deprecation is used to discourage usage of a particular programming language feature, usually because it has been superceded by a newer/better version. The deprecated feature still works in the current version of the software, but it may raise error messages or warnings recommending an alternative practice.