A coded character whose use is strongly discouraged Such characters are retained in the standard, but should not be used (See Definition D7a in Section 3 3, Characters and Coded Representations ) (Not the same as obsolete )
Something that has been made obsolete by later versions of the API Deprecated methods should not be used because there is no guarantee that they will continue to exist in future versions
A deprecated element or attribute is one that has been outdated by newer constructs Deprecated elements are defined in the reference manual in appropriate locations, but are clearly marked as deprecated Deprecated elements may become obsolete in future versions of HTML We recommend that authors avoid using deprecated elements and attributes whenever practical To this end, we provide alternatives to them when appropriate in the specification In most cases these depend on user agent support for style sheets User agents should continue to support deprecated elements for reasons of backward compatibility
A deprecated element or attribute is one that was valid in earlier version of HTML but has since been replaced by other techniques These elements will eventually become obsolete but user agents are expected to still support them to ensure backwards compatibility A prominent example is the FONT tag and other presentational attributes It should be avoided and CSS used instead, but browsers will still interpret it correctly
Within the context of HTML DTDs, a deprecated term is one whose use is no longer recommended, but which is still supported for backward compatibility Go to top of page
As more advanced HTML standards are developed, some HTML features such as tags, elements or attributes become deprecated, meaning that other methods of accomplishing the same task are preferred Deprecated features may become obsolete in future versions of HTML, although browsers that support the features will probably continue to support them Deprecated features are included in HTML 4 0 Transitional but not HTML 4 0 Strict
A deprecated element or attribute is one that has been outdated by newer constructs Deprecated elements may become obsolete in future versions of HTML Authors should avoid using deprecated elements and attributes User agents should continue to support for reasons of backward compatibility
Obsolete A language or library feature that is deprecated might be removed from the next version of the standard You should avoid using deprecated features if you can