I’m writing this to raise awareness among Obsidian developers. With the 1.14.0 update, since MathJax was replaced with Temml, users who relied on custom LaTeX commands built for MathJax now have compatibility issues.
\require{physics} no longer works (\require{physics} \qty(\frac{1}{2}) now breaks), \DeclareMathOperator no longer works (\DeclareMathOperator{\H}{H} \H now breaks), and \DeclarePairedDelimiter no longer works (\DeclarePairedDelimiter\norm{\lVert}{\rVert} \norm*{x} now breaks).
Would it be better if Obsidian provided an option for users to choose MathJax?