Increase ENTROPY_NEEDED to support Rijndael's larger key size.
diff --git a/CHANGES b/CHANGES
index a3292d2..f3f345a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -11,6 +11,9 @@
          *) applies to 0.9.6a (/0.9.6b) and 0.9.7
          +) applies to 0.9.7 only
 
+  +) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
+     256 bit (=32 byte) keys. Of course seeding with more entropy bytes
+     than this minimum value is recommended.
 
   +) New random seeder for OpenVMS, using the system process statistics
      that are easily reachable.