diff --git a/readme.txt b/readme.txt
index 8919d793c..7106ed375 100644
--- a/readme.txt
+++ b/readme.txt
@@ -162,6 +162,8 @@
   3484947)(backported to 2.4.1).
 - FIX: Fixed various minor documentation errors (bug 3484942)(backported
   to 2.4.1).
+- NEW: Small andjustment in chcore.h files under ./os/ports/GCC required by a
+  difference in GCC 4.7.x.
 - NEW: Added another STM32F4-Discovery demo using the on-board MEMS, SPI
   and PWM. Removed MEMS handling from the old demo because code size limits
   on non-free compilers.