diff --git a/CHANGES/v2.3.txt b/CHANGES/v2.3.txt
index d3229aa7e5dcb19fb836461f4fe6521dede47c90..3e930e471eaee87e0baf4db07c9bf6612fb3093e 100644
--- a/CHANGES/v2.3.txt
+++ b/CHANGES/v2.3.txt
@@ -157,6 +157,7 @@ See branch \branch{v2.3} on git repository.
 - Fixed bug when using \ref MOVINGRESTRAINT with periodic variables such as \ref TORSION \issue{225}.
 - Fixed bug in \ref HBONDS that used to apear when you used DONORNS and ACCEPTORS with same numbers of atoms 
 - Fixed bug in \ref DISTANCES that appears when using BETWEEN and link cells.
+- Prevented users from causing segfaults by storing derivatives without LOWMEM flag.  In these caess PLUMED crashes with meaningful errors.
 
 For developers:
 - plumedcheck validation has been made stricter. All the checks are now described in the developer manual.