- search by exact name or regular expression over names
- search by type (up to isomorphism)
- search by words appearing in comments
- stroked, underlined, and highlighted styles
- image data inclusion
- full table support (caption, headers, rows, data, and horizontal span)
- token substitution
- text folding/unfolding
- @typevar tag to document type variable
- @unimplemented, @todo, @undocumented, @todoc, @docme, @fixme, @tofix tags for
  remaining work
- @alias, @synonym, @abbreviation, @equivalent tags for cross-references
- @threadsafe, @threadunsafe tags for thread compatibility
- @stateful tag for state-based functions
- @copyright and @license tags for legal information
- @attention, @bug, @error, @info, @new, @note, @remark, @warning tags