diff --git a/libHX-4.21.tar.asc b/libHX-4.21.tar.asc
deleted file mode 100644
index 87e5f07..0000000
--- a/libHX-4.21.tar.asc
+++ /dev/null
@@ -1,7 +0,0 @@
------BEGIN PGP SIGNATURE-----
-
-iHUEABYKAB0WIQS8oMXDCcrFaedKkhz3bv5dDCI6jwUCZYLoEAAKCRD3bv5dDCI6
-j9M6AQCNVb7aVKEf4G7AIGr92O3DM0RhA4sFhEAiSaqcrpapRgEA+i5arCMDh7CZ
-fDXJwvFbNxHdJPsMfU7jqxDmiK6gyw4=
-=zkSf
------END PGP SIGNATURE-----
diff --git a/libHX-4.21.tar.xz b/libHX-4.21.tar.xz
deleted file mode 100644
index 62b580c..0000000
--- a/libHX-4.21.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d57d5e858dee40d64d413555815f06d7eda52ce96f069817452671503756550d
-size 359760
diff --git a/libHX-4.23.tar.asc b/libHX-4.23.tar.asc
new file mode 100644
index 0000000..18ee7c4
--- /dev/null
+++ b/libHX-4.23.tar.asc
@@ -0,0 +1,7 @@
+-----BEGIN PGP SIGNATURE-----
+
+iHUEABYKAB0WIQS8oMXDCcrFaedKkhz3bv5dDCI6jwUCZc48NAAKCRD3bv5dDCI6
+jy0fAP472IkTWPVGD3AQuC3i7xqPS8vb4zOy6Itb6RSbeSRwUgD/RavKq2bQfgWa
+RDSkbxROtQu8yWbE4T9SRwLXuFmcqgc=
+=QeLi
+-----END PGP SIGNATURE-----
diff --git a/libHX-4.23.tar.xz b/libHX-4.23.tar.xz
new file mode 100644
index 0000000..e6da736
--- /dev/null
+++ b/libHX-4.23.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:048cd43a71b79753820f36b18d44d8bbdbfde6d38d45348f49b9303c4d9758e8
+size 359608
diff --git a/libHX.changes b/libHX.changes
index 300face..3285dae 100644
--- a/libHX.changes
+++ b/libHX.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Thu Feb 15 16:11:39 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 4.23
+  * io: use smaller chunks with sendfile(2) to work around
+    unusual API behavior
+  * io: make HX_copy_file() utilize copy_file_range when available
+
 -------------------------------------------------------------------
 Wed Dec 20 13:23:27 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/libHX.spec b/libHX.spec
index 30cc9d7..42f66bb 100644
--- a/libHX.spec
+++ b/libHX.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libHX
 #
-# Copyright (c) 2023 SUSE LLC
+# Copyright (c) 2024 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -18,7 +18,7 @@
 
 Name:           libHX
 %define lname   libHX32
-Version:        4.21
+Version:        4.23
 Release:        0
 Summary:        Collection of routines for C and C++ programming
 License:        LGPL-2.1-or-later