This page describes the search criteria available in https://www.w3.org/TR/tr-new.
This does a simple text matching on titles of specifications.
This restricts the set of specifications using a limited set of tags. The tags are based on general topics that we believe are most relevant for our general community. A complete list of tags with their descriptions is available.
This matches the status of the Document, as defined by the W3C Process. W3C Recommendations have gone through the entire review cycle and are endorsed by the W3C Director. Retired documents are obsoleted, superseded, or abandoned.
This narrows down the list to a more useful list of documents based on their status. Depending on your needs, you may choose between:
More information on the version classification can be found in 3. Short Names and canonical URLs.