add text to ltnews32

base/doc/ltnews32.tex

@@ -639,9 +639,9 @@ \subsection{Added a fourth empty argument to \cs{contentsline}}
 \LaTeX's writes with \cs{addcontentsline} a \cs{contentsline}
 command with three arguments to the  toc and similar files.
 \pkg{hyperref} redefines \cs{addcontentsline} to write
-a fourth argument. The change unifies the number of arguments 
+a fourth argument. The change unifies the number of arguments
 by writing an additional empty brace group.
-  
+
 
 
 \subsection{Lua\TeX\ callback \texttt{new\_graf} made \texttt{exclusive}}
@@ -777,6 +777,12 @@ \subsection{Fixes to \texttt{aligned} and \texttt{gathered}}
 %
 \githubissue{5}
 
+\subsection{Detect unicode engines when setting \cs{std@minus} and \cs{std@equal}}
+
+\pkg{amsmath} now detects the unicode engines and use their extended
+commands to define \cs{std@minus} and \cs{std@equal}. This avoids that package like 
+\pkg{unicode-math} have to patch the code in the begin document hook to exchange the commands.
+
 
 \section{Changes to the \pkg{babel} package}