diff --git a/ChangeLog b/ChangeLog
index e70775ced8ad9039e49301bc2c1255414789460a..c46b1d341686205d03202e363d708defbef91adc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+Wed, 31 Jan 2018 17:38:25 +0100
+
+* Release v2.23.1
+    * The Makefile no longer honors CPPFLAGS and instead consistently uses
+      CFLAGS for user-provided include paths
+    * Fix %u format specifier in multiwindow and list modes (patch by ulteq)
+    * Minor performance improvements (patches by ulteq)
+    * Stability improvements when using --magick-timeout (patch by ulteq)
+
 Thu, 28 Dec 2017 19:26:29 +0100
 
 * Release v2.23
diff --git a/test/list/custom b/test/list/custom
index b5ddb324ffe26e29201b4caa617a9323a1a71f4f..dbe2074d619bf3a25a898411855c0b3a892aff57 100644
--- a/test/list/custom
+++ b/test/list/custom
@@ -1,4 +1,4 @@
-test/ok/gif; 16; 4; list; gif; 256; 953; gif; 0; 16
-test/ok/jpg; 16; 4; list; jpg; 256; 354; jpeg; 0; 16
-test/ok/png; 16; 4; list; png; 256; 403; png; 0; 16
-test/ok/pnm; 16; 4; list; pnm; 256; 269; pnm; 0; 16
+test/ok/gif; 16; 4; list; gif; 256; 953; gif; 1; 16
+test/ok/jpg; 16; 4; list; jpg; 256; 354; jpeg; 2; 16
+test/ok/png; 16; 4; list; png; 256; 403; png; 3; 16
+test/ok/pnm; 16; 4; list; pnm; 256; 269; pnm; 4; 16