Features

• Added support for Mermaid diagrams, via new commands @mermaid, @endmermaid, and @mermaidfile and new configuration options MERMAID_PATH, MERMAID_CONFIG_FILE, MERMAID_RENDER_MODE, MERMAID_JS_URL, MERMAIDFILE_DIRS [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], and [view]
• Added support for running dot on batches of dot graphs to reduce process creation overhead. Can be tuned via new option DOT_BATCH_SIZE. [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], and [view]
• issue #6926 Added support for documenting unnamed parameters [view], [view], [view]
• Improve multi-threading performance by avoiding mutex contention [view]
• Updated Portuguese, Polish and Greek translators to 1.16.0. [view], [view], and [view]
• Add support for long path name (>260 characters) for Doxygen on Windows (embedded manifest file) [view]
• Added engines chart, nwdiag, packetdiag and project for PlantUML [view], [view] Minor incompatibilities
• Dropped the jQuery dependency. [view], [view], [view], [view], [view], [view], [view], [view], [view], [view], and [view] Note that if you have custom Javascripts relying on Doxygen to provide jQuery you need to update them and include jQuery yourself! Bug fixes
• issue #8425 Would like a way to sort class list but not brief member list [view]
• issue #11831 @ref not supported in
  tag [view], [view]
• issue #11927 [BUG] Regression - Topics are no longer navigable [view], [view]
• issue #11932 Documentation for sub group is not generated [view]
• issue #11934 Damaged Doxyfile doc comments [view]
• issue #11936 [BUG] Regression - The group name is replaced with the group title inside the @retval command [view]
• issue #11948 Support for Python v3.13's New Generic Syntax [view], [view]
• issue #11958 Requirements Management Data Missing in XML Output (Table + External Requirements) [view]
• issue #11972 Incorrect indentation for custom command following list [view]
• issue #11974 Example code not rendered correctly using Doxygen 1.16.1 when TAB_SIZE = 8 [view]
• issue #11980 Documentation Python Class with two literals will not be compiled [view], [view]
• issue #11984 C++20 concepts and doxygen 1.16.1 parsing problems [view] and [view]
• issue #11985 C++20 function signature with different requirements considered the same from doxygen 1.16.1 [view] and [view]
• issue #11989 Doxyfile with UTF-8 BOM Doxyfile causes silent exit (no output, no error) in 1.16.1 [view]
• issue #12008 "namespacemembers.html" and "functions.html" only show items for one specific initial letter [view], [view], [view], [view], [view]
• issue #12009 Doctest/Catch2, requirements links and layout [view], [view]
• issue #12015 Incorrect underline with HTML_DYNAMIC_MENUS = NO [view]
• issue #12021 No matching class member found for overloaded functions with a templated parameter [view]
• issue #12035 using ignored when attribute or comment between identifier and = [view]
• issue #12057 SIGSEGV in \relates resolution when referencing a nested struct and the parent class has a using-alias in another namespace [view]
• issue #12071 Bogus warning: More #if's than #endif's found [view]
• issue #12073 Doxygen is confused by [[nodiscard]] in unconventional (but valid) position [view]
• issue #12092 Regression in the parsing of titles of custom navbar tabs [view]
• bug 129682 Wrong function dependency is made [view], [view], [view], [view]
• Not possible to place a \cite in a \par title [view]
• fix parsing interfaces [view]
• fix protocol regression: guard BEGIN(ClassVar) to ObjC interfaces only [view]
• Warnings when generating diagrams with LaTeX and HTMLHelp / QHP enabled [view]
• Warnings building Latex output [view]
• Error building doxygen CHM documentation [view], [view]
• Discussion #12000 CHM Viewer JavaScript Problem with svg.min.js [view]
• Ignore closing </hr> and </br> [view]
• Mismatch #if / #endif when "verbatim" command in non doxygen comment [view]
• Incorrect handling of comment in comment [view]
• Warning and incorrect results with commands inside html tags [view]
• Support 'markdown/ github user' type of links to users and links [view]
• be slightly more compatible parsing fenced blocks for markdown [view]
• Handling of line numbers with e.g. \example command [view] Improved user feedback and documentation
• Add .github/copilot-instructions.md for Copilot cloud agent onboarding [view], [view]
• Problem with \satisfies documentation in Doxyfile and doxywizard [view]
• Compacter layout of HTML_DYNAMIC_MENUS [view]
• doc: fix archived Microsoft HTML Help Workshop download link [view]
• Update config.xml description of CREATE_SUBDIRS [view]
• Large white space between grouping without names [view]
• More readable table of contents in doxygen's LaTeX documentation. [view]
• Better arrow with <details> / <summary> tags [view]
• Better warning when in Fortran a program unit or routine is not closed [view], [view]
• Incorrect line numbers in source code browser for lex files [view]
• Non existing anchors in "index" files [view]
• Not existing images generating doxygen chm documentation. [view]
• Documentation code span limits [view]
• Incorrect warning from non-doxygen comment [view]
• Consistency corrections regarding usage of extensions. [view]
• Double index in LaTeX with citations and no hyperlinks [view] Refactoring and cleanup
• [libmscgen] Do not discard const qualifier from strstr() [view]
• Dynamic sections [view], [view], [view]
• Simplify menu.js [view]
• Refactoring: pack optional linkifyText parameters in LinkifyTextOptions [view]
• Remove double included files [view]
• Disable dark mode except for HTML output format [view]
• Improve cache clearing, fix cache statistics, and improve encapsulation [view] Development improvements
• [deps] Update SQLite to version 3.51.3 [view]
• Create a bit more flexibility in alphabetical lists [view]
• Add "path" attribute to group tagfile [view]
• Improve file name matching [view]
• Fix group member IDs for ambiguous filenames [view]
• Possibility to, locally, generate man output files from tests [view]