diff --git a/base/changes.txt b/base/changes.txt
index eaae54432..fa9af26a8 100644
--- a/base/changes.txt
+++ b/base/changes.txt
@@ -6,6 +6,10 @@ to completeness or accuracy and it contains some references to files that are
 not part of the distribution.
 ================================================================================
 
+2024-11-27  Joseph Wright  <Joseph.Wright@latex-project.org>
+	* usrguide.tex:
+	Add syntax of \Make...case
+
 2024-11-17  Frank Mittelbach  <Frank.Mittelbach@latex-project.org>
 
 	* ltmarks.dtx (section{Public interfaces for packages such as \pkg{multicol}}):
diff --git a/base/doc/usrguide.tex b/base/doc/usrguide.tex
index 21b15fb68..de37d6d41 100644
--- a/base/doc/usrguide.tex
+++ b/base/doc/usrguide.tex
@@ -43,7 +43,7 @@
     \texttt{usrguide.tex} for full details.}%
 }
 
-\date{2024-11-12}
+\date{2024-11-17}
 
 \NewDocumentCommand\cs{m}{\texttt{\textbackslash\detokenize{#1}}}
 \NewDocumentCommand\marg{m}{\arg{#1}}
@@ -1254,6 +1254,11 @@ \section{Expandable floating point (and other) calculations}
 
 \section{Case changing}
 
+\begin{decl}
+  |\MakeUppercase| \oarg{keyvals} \arg{text} \\
+  |\MakeLowercaes| \oarg{keyvals} \arg{text} \\
+  |\MakeTitlecase| \oarg{keyvals} \arg{text}
+\end{decl}
 \TeX{} provides two primitives \cs{uppercase} and \cs{lowercase} for changing
 the case of text. However, these have a range of limitations: they only change
 the case of explicit characters, do not account for the surrounding context, do