diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 03e603a86b9..09ddb49ab8a 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20230219
+20230220
diff --git a/libgm2/ChangeLog b/libgm2/ChangeLog
index c7c2c3a7091..611a98097e8 100644
--- a/libgm2/ChangeLog
+++ b/libgm2/ChangeLog
@@ -1,3 +1,10 @@
+2023-02-19  Gaius Mulley  <gaiusmod2@gmail.com>
+
+	PR testsuite/108835
+	* libm2iso/RTco.cc: Re-implementation using a single lock
+	mutex and inlined wait/signal implementation within
+	transfer.
+
 2023-02-13  Gaius Mulley  <gaiusmod2@gmail.com>
 
 	* libm2iso/RTco.cc (tprintf): Replace definition.