diff --git a/base/README.md b/base/README.md
index 09de821f1..ef0e530d4 100644
--- a/base/README.md
+++ b/base/README.md
@@ -1,7 +1,7 @@
 The LaTeX kernel
 ================
 
-Release 2023-11-01
+Release 2023-11-01 patch level 1
 
 Overview
 --------
diff --git a/base/changes.txt b/base/changes.txt
index b4e68e623..6543d553c 100644
--- a/base/changes.txt
+++ b/base/changes.txt
@@ -10,6 +10,10 @@ not part of the distribution.
 All changes above are only part of the development branch for the next release.
 ================================================================================
 
+#########################
+# 2023-11-01 PL1 Release
+#########################
+
 2024-01-13 Jonathan P. Spratte <jspratte@yahoo.de>
 	* ltkeys.dtx: 
 	Trim spaces off key names taken from the raw-lists (gh1238)
diff --git a/base/ltvers.dtx b/base/ltvers.dtx
index ffade4cfa..bf5dce4ca 100644
--- a/base/ltvers.dtx
+++ b/base/ltvers.dtx
@@ -115,7 +115,7 @@
    {2023-11-01}
 %</2ekernel|latexrelease>
 %<*2ekernel>
-\def\patch@level{0}
+\def\patch@level{1}
 %    \end{macrocode}
 %
 % \begin{macro}{\development@branch@name}