Release Notes: The groff \m color extension is now handled. Manpages generated by reStructeredText are dealt with gracefully. Groff-style \F font escapes are coped with better. A partial interpretation of troff \h was added.
Release Notes: Simplified and improved ntroff expression evaluation.
Release Notes: New logic prevents spurious warnings from .in +N just before .nf. Many more instances of .ta are now automatically handled. Multi-file compilation was broken, and is now repaired.
Release Notes: This release deals with W3C moving a math DTD, improves .Bl/.El handling and updates canned strings in mdoc, accepts \(hy in name sections, handles   (inadvertently omitted from DocBook v4), and adds -V for a version option.
Release Notes: Trailing comments after table rows are now preserved (example: matherr(3)). Support for some previously missing groff extension glyphs was added. Handling of .Bd/.Be in mdoc was improved.
Release Notes: This release handles foojzs pages better, interprets some cases of .rj, recognizes "Feature Test" as a function synopsis ender, handles m, r, and d troff conditionals, processes .ti with positive indent into <blockquote> around the following line, supports all mdoc special-character strings, improved recognition of program listings, and fixed a brown-paper-bag bug in processing of mdoc.