diff --git a/Doc/lib/libhtmllib.tex b/Doc/lib/libhtmllib.tex
index 3993222..6ec17bd 100644
--- a/Doc/lib/libhtmllib.tex
+++ b/Doc/lib/libhtmllib.tex
@@ -162,10 +162,10 @@
 
 \begin{datadesc}{name2codepoint}
   A dictionary that maps HTML entity names to the Unicode codepoints.
+  \versionadded{2.3}
 \end{datadesc}
 
 \begin{datadesc}{codepoint2name}
   A dictionary that maps Unicode codepoints to HTML entity names.
+  \versionadded{2.3}
 \end{datadesc}
-
-