regression in TeX Live 2023 concerning some math characters

[Vincent Lefevre]

Hi,

Consider the following LaTeX file:

\documentclass{article}
\pagestyle{empty}
\begin{document}
$x'$ ; $\oplus$ ; $\ominus$ ; $\otimes$ ; $\ell$ ; OK.
\end{document}

With TeX Live 2022/Debian / LaTeX2e <2022-11-01> patch level 1
(texlive 2022.20230122-3) on Debian 12.2 (bookworm), the characters
as obtained with pdftotext are:

────────────────────────
x′ ; ⊕ ; ⊖ ; ⊗ ; ℓ ; OK.
────────────────────────

This is correct.

But with TeX Live 2023/Debian / LaTeX2e <2023-06-01> patch level 1
(texlive 2023.20231007-1) on Debian/unstable, I get:

────────────────────────
x0 ; ⊕ ;

; ⊗ ; ` ; OK.
────────────────────────

The prime character is changed to "0", the \ominus character is
changed to something like a new line, and the \ell character is
changed to a grave accent.

-- 
Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)