What's Changed

• Optimize RawLine by using a regexp instead of negative look-ahead rule by @mame in #854
• Fix typo in RDoc::Task example: '.doc' -> '.rdoc' by @gemmaro in #863
• Support all struct definition functions by @nobu in #866
• Cross references to operator methods by @nobu in #865
• Skip parentheses on singleton class declaration by @soutaro in #867
• Allow cross references to logical operator methods by @nobu in #868
• Simplify attribute exclusiveness conditions by @nobu in #851
• Relative loading for easier development by @BuonOmo in #821
• Make .rdoc_options file plain ruby objects only by @nobu in #839
• Prefer require 'cgi/util' instead of require 'cgi' by @mame in #869
• Use Marshal.load io instead of Marshal.load io.read by @znz in #870
• Support crossref of methods with multiple arguments by @peterzhu2118 in #871
• Scrollable sidebar by @ybiquitous in #838
• Fold "class and module index" list by @nobu in #872
• Fix full name of known class by @nobu in #873
• Use Ruby 3.1 for CI by @aycabta in #856
• Use the custom style details summary only in nav-section by @nobu in #874
• Allow method source code to scroll by @nobu in #875
• Fold "Pages" list by @nobu in #876
• Use actions/checkout@v3 by @hsbt in #877
• Only parse valid URLs by @peterzhu2118 in #878
• Allow cross references to methods including underscores by @nobu in #879
• Apply matching word pairs to underscore-methods by @nobu in #880
• Fix links in docs by @peterzhu2118 in #881
• Fix a typo [ci skip] by @znz in #883
• Fix dead link in RDoc::Markup by @peterzhu2118 in #884
• Remove never used win32console by @nobu in #887
• No pager check by @nobu in #886
• Use command array form of IO.popen always by @nobu in #888
• Allow boolean arguments to rb_attr and rb_define_attr by @nobu in #889
• Parse also InitVM-prefixed functions by @nobu in #891
• Refinement is added since ruby 3.1 by @nobu in #892
• Support attributes defined by rb_struct_define by @nobu in #893
• Remove dead code by @nobu in #894
• Fix an exception class name by @nobu in #895
• Fix the known classes more by @nobu in #896
• Markup reference by @BurdetteLamar in #824
• Fix call-seq for aliased method with similar names by @peterzhu2118 in #897
• Move doc/markup_reference.rb to doc/rdoc by @BurdetteLamar in #899
• [DOC] Add links to list of blocks by @BurdetteLamar in #900
• [DOC] Move section Directives into section Blocks by @BurdetteLamar in #901
• Correct error in rdoc_files by @BurdetteLamar in #902
• [DOC] Clarifications for directives by @BurdetteLamar in #903
• @github.com by @LaAzteca in #439
• [DOC] Add some links in intro; delimit rendered HTML output. by @BurdetteLamar in #904
• [DOC] Link from RDoc::Markup to RDoc::MarkupReference by @BurdetteLamar in #906
• Fix formatting blockquote in verbatim by @nobu in #908
• [DOC] Add block quotes by @BurdetteLamar in #907
• Fix blockquote with word in verbatim by @nobu in #909
• [DOC] Removes remaining old Markup Reference by @BurdetteLamar in #910
• Allow multiple footnotes without in-between blank lines by @nobu in #912
• Treat text markup (italic, bold, monofont) as blocks by @BurdetteLamar in #911
• [DOC] Make example formats explicit and consistent by @BurdetteLamar in #913
• [DOC] Improvements to Text Markup examples by @BurdetteLamar in #915
• [DOC] Mods to section Text Markup by @BurdetteLamar in #916
• [DOC] Enhances text about escapes by @BurdetteLamar in #917
• [DOC] Remove duplicated line in RDoc::MarkupReference by @peterzhu2118 in #918
• Update ruby versions in CI by @nobu in #923
• [DOC] Update the license of Darkfish by @nobu in #922
• Fix ruby script in "test_parse_method_bracket" by @yui-knk in #927
• Remove unused abbrev require by @composerinteralia in #930
• More compliant with GFM table by @nobu in #931
• Allow markup in cells by @nobu in #932
• Escape links by @nobu in #933
• Escape file names by @nobu in #934
• Change CONTRIBUTING.rdoc to direct readers to rdoc's GitHub Actions page by @mateusdeap in #937
• Delay require "readline" in case the terminal is in raw mode by @shugo in #939
• Use jruby-head by @nobu in #944
• Add epoch.rake by @nobu in #943
• Fix up Relative loading (#821) by @nobu in #945
• Refine regexp usages and reduce substring allocations by @nobu in #852
• Darkfish: Nest sidebar ToC as a tree of headings by @nevans in #941
• Darkfish: group method call-seq in div.method-header by @nevans in #942
• Refactor RDoc::Markup::Parser#tokenize by @nobu in #929
• Rubocop task by @nobu in #946
• Skip test option by @sriedel in #726
• Added dependabot for GitHub Actions by @hsbt in #947
• [StepSecurity] ci: Harden GitHub Actions by @step-security-bot in #948
• Non-RD parts by @nobu in #949

New Contributors

• @gemmaro made their first contribution in #863
• @soutaro made their first contribution in #867
• @peterzhu2118 made their first contribution in #871
• @ybiquitous made their first contribution in #838
• @BurdetteLamar made their first contribution in #824
• @LaAzteca made their first contribution in #439
• @yui-knk made their first contribution in #927
• @composerinteralia made their first contribution in #930
• @mateusdeap made their first contribution in #937
• @shugo made their first contribution in #939
• @nevans made their first contribution in #941
• @step-security-bot made their first contribution in #948

Full Changelog: v6.4.0...v6.5.0