diff --git a/RELNOTES b/RELNOTES
index f66fa8cf..b4f6c7b3 100644
--- a/RELNOTES
+++ b/RELNOTES
@@ -52,6 +52,10 @@ The system has only been tested on Linux, FreeBSD, and Solaris, and
 may not work on other platforms. Please report any problems and 
 suggested fixes to <dhcp-users@isc.org>.
 
+			Changes since 4.0.0b1
+
+- A number of bugs with the internal handling of lease state on the 
+  server have been fixed. Some of these could cause server crashes.
 
 			Changes since 4.0.0a3