diff --git a/meta/recipes-core/libxml/libxml2/install-tests.patch b/meta/recipes-core/libxml/libxml2/install-tests.patch
index 14ccce5873..37b92cc5ab 100644
--- a/meta/recipes-core/libxml/libxml2/install-tests.patch
+++ b/meta/recipes-core/libxml/libxml2/install-tests.patch
@@ -1,4 +1,4 @@
-From 3fc716357ce1372d9418dc86f24315b34d9808de Mon Sep 17 00:00:00 2001
+From 2292f5650ad78c3be62981efbab660c8d1b3fc91 Mon Sep 17 00:00:00 2001
 From: Ross Burton <ross.burton@arm.com>
 Date: Mon, 5 Dec 2022 17:02:32 +0000
 Subject: [PATCH] add yocto-specific install-ptest target
@@ -13,11 +13,11 @@ Signed-off-by: Ross Burton <ross.burton@arm.com>
  1 file changed, 10 insertions(+)
 
 diff --git a/Makefile.am b/Makefile.am
-index 5bc4018..57d27af 100644
+index 0a49d37..1097c63 100644
 --- a/Makefile.am
 +++ b/Makefile.am
-@@ -26,6 +26,16 @@ check_PROGRAMS = \
- 	testlimits \
+@@ -27,6 +27,16 @@ check_PROGRAMS = \
+ 	testparser \
  	testrecurse
  
 +ptestdir=$(libexecdir)
diff --git a/meta/recipes-core/libxml/libxml2_2.11.5.bb b/meta/recipes-core/libxml/libxml2_2.12.1.bb
similarity index 69%
rename from meta/recipes-core/libxml/libxml2_2.11.5.bb
rename to meta/recipes-core/libxml/libxml2_2.12.1.bb
index 319833f053..917fd7685d 100644
--- a/meta/recipes-core/libxml/libxml2_2.11.5.bb
+++ b/meta/recipes-core/libxml/libxml2_2.12.1.bb
@@ -1,13 +1,55 @@
+# FIXME: the LIC_FILES_CHKSUM values have been updated by 'devtool upgrade'.
+# The following is the difference between the old and the new license text.
+# Please update the LICENSE value if needed, and summarize the changes in
+# the commit message via 'License-Update:' tag.
+# (example: 'License-Update: copyright years updated.')
+#
+# The changes:
+#
+# --- Copyright
+# +++ Copyright
+# @@ -1,4 +1,4 @@
+# -Except where otherwise noted in the source code (e.g. the files hash.c,
+# +Except where otherwise noted in the source code (e.g. the files dict.c,
+#  list.c and the trio files, which are covered by a similar licence but
+#  with different Copyright notices) all the files are:
+#  
+# --- hash.c
+# +++ hash.c
+# @@ -1,10 +1,10 @@
+# - * Copyright (C) 2000,2012 Bjorn Reese and Daniel Veillard.
+#   *
+# - * Permission to use, copy, modify, and distribute this software for any
+# - * purpose with or without fee is hereby granted, provided that the above
+# - * copyright notice and this permission notice appear in all copies.
+# - *
+# - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+# - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+# - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHORS AND
+# - * CONTRIBUTORS ACCEPT NO RESPONSIBILITY IN ANY CONCEIVABLE MANNER.
+# + * See Copyright for the status of this software.
+# + */
+# +
+# +#define IN_LIBXML
+# +#include "libxml.h"
+# +
+# +#include <string.h>
+# +#include <limits.h>
+# +
+# 
+#
+
 SUMMARY = "XML C Parser Library and Toolkit"
 DESCRIPTION = "The XML Parser Library allows for manipulation of XML files.  Libxml2 exports Push and Pull type parser interfaces for both XML and HTML.  It can do DTD validation at parse time, on a parsed document instance or with an arbitrary DTD.  Libxml2 includes complete XPath, XPointer and Xinclude implementations.  It also has a SAX like interface, which is designed to be compatible with Expat."
 HOMEPAGE = "https://gitlab.gnome.org/GNOME/libxml2"
 BUGTRACKER = "http://bugzilla.gnome.org/buglist.cgi?product=libxml2"
 SECTION = "libs"
 LICENSE = "MIT"
-LIC_FILES_CHKSUM = "file://Copyright;md5=2044417e2e5006b65a8b9067b683fcf1 \
-                    file://hash.c;beginline=6;endline=15;md5=e77f77b12cb69e203d8b4090a0eee879 \
+LIC_FILES_CHKSUM = "file://Copyright;md5=fec7ecfe714722b2bb0aaff7d200c701 \
+                    file://hash.c;beginline=6;endline=15;md5=9af9349d0ead24569dc332f2116ef5f8 \
                     file://list.c;beginline=4;endline=13;md5=b9c25b021ccaf287e50060602d20f3a7 \
-                    file://trio.c;beginline=5;endline=14;md5=cd4f61e27f88c1d43df112966b1cd28f"
+                    file://trio.c;beginline=5;endline=14;md5=cd4f61e27f88c1d43df112966b1cd28f \
+                    "
 
 DEPENDS = "zlib virtual/libiconv"
 
@@ -19,7 +61,7 @@ SRC_URI += "http://www.w3.org/XML/Test/xmlts20130923.tar;subdir=${BP};name=testt
            file://install-tests.patch \
            "
 
-SRC_URI[archive.sha256sum] = "3727b078c360ec69fa869de14bd6f75d7ee8d36987b071e6928d4720a28df3a6"
+SRC_URI[archive.sha256sum] = "8982b9ccdf7f456e30d8f7012d50858c6623e495333b6191def455c7e95427eb"
 SRC_URI[testtar.sha256sum] = "c6b2d42ee50b8b236e711a97d68e6c4b5c8d83e69a2be4722379f08702ea7273"
 
 # Disputed as a security issue, but fixed in d39f780