v4.2

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Add support for delimiters that are specific to a mathvariant and use it for mhchem arrows. (mathjax/MathJax#3486)

Status: Open (in progress).

mathjax/MathJax-srcnumber 1424

#1424 In mathjax/MathJax-src;

· dpvc opened on Jan 26, 2026

Filter \t from URL protocols, same as \n and \r

Status: Open (in progress).

mathjax/MathJax-srcnumber 1557

#1557 In mathjax/MathJax-src;

· dpvc opened on Sep 1, 2026

FIxes several prettier issues from recent commits

Status: Open (in progress).

mathjax/MathJax-srcnumber 1558

#1558 In mathjax/MathJax-src;

· dpvc opened on Sep 1, 2026

Update use of SPEECH and BRAILLE strings where they were missed earlier

Status: Open (in progress).

mathjax/MathJax-srcnumber 1560

#1560 In mathjax/MathJax-src;

· dpvc opened on Sep 2, 2026

Use the ui/safe data URL filter for the values used in \data TeX macros

Status: Open (in progress).

mathjax/MathJax-srcnumber 1561

#1561 In mathjax/MathJax-src;

· dpvc opened on Sep 2, 2026