* Scintilla updated to 5.1.2, see https://www.scintilla.org/ScintillaHistory.html for the changes.
* Support AutoHotkey (AutoHotkey_L and AutoHotkey_H v2), issue #17. cb19a7d
* Support CoffeeScript (2.5.1), issue #19. b941007
* Asymptote lexer and API list updated to Asymptote 2.70. 6847731
* C# and Vala lexer updated to C# 10, highlighting for interpolation expressions, escape sequences and format specifiers are implemented. 57426ea
* CSS lexer supports conditional rule supports, document and -moz-document (Lexilla 5.1.2), issue #333. 37bcf23
* Inno Setup lexer and API list updated to Inno Setup 6.2, code folding for preprocessor and Pascal code are implemented. fcd39c5, d46f093, 57eebb0, etc.
* Function or method definitions in Java, Kotlin, Dart and Groovy are highlighted. 9948156 and 4217bc5
* Python lexer improved highlighting for format specification. 8ec2663 and 0cd65fe
* HTML event handler list updated to WHATWG 2021-09-08, it's now included in auto-completion list for JavaScript and TypeScript. 2e09289
* View -> Highlight Current Line -> Highlight Subline is implemented, issue #110. 405b821 and 72c7c68
* Improved performance for large files when using monospaced font (by default, all schemes other than "Text File"). 0259c98
* Improved shutdown performance when "Remember Recent Files" is enabled, issue #363. d6845ac
* Fixed broken changes (introduced by a2a1013) to "Caret Line" global style, issue #369. 4afeeb7 and 1acadf6
* Fixed "Open As Administrator" broken for text file. 20ff4f1
* Fixed page up and page down shortcuts broken, issue #359. 6c5902e
* Experimental fix for registry-based notepad replacement on Windows 11 (see wiki), issue #347 and #367. 3b27a22 and f3563e0

- Scintilla updated to 5.1.4, see https://www.scintilla.org/ScintillaHistory.html for the changes.
- Unicode data updated to Unicode 14.0.0. 8431e9c
- Support blockdiag (issue #130), attribute list for GraphViz updated to GraphViz 2.49. edcd6a4 and 9345c76
- Support running both Notepad2 and metapath as symbolic links (see mklink command). 930874d
- Edit -> Special -> Hex to Char now supports UTF-32 hex sequences (\U or U+ with up to eight hex digits). 24bccfb
- Added "group by file type" sorting option, which is useful for sorting file names. cd3176a
- Fixed wrong character classification data for Big5 encoding. 4ac3d6d
- Fixed Korean Hanja to Hangul conversion failure on some system, issue #393. 2461216
- Fixed single file instance failure when path name diffs, issue #378. 2c3b8d6
- Fixed legacy ANSI file broken when "Use Unicode UTF-8 for worldwide language support" is enabled, issue #39 and #386. db68b13
- Some lexer improvements. 025e2f2, 078fedd, bbb8e7e, 28b2552 and 697c696.