diff --git a/WHATSNEW.txt b/WHATSNEW.txt
index f9e0126..b508577 100644
--- a/WHATSNEW.txt
+++ b/WHATSNEW.txt
@@ -1,3 +1,10 @@
+****** IMPORTANT NOTE *****
+
+As of this release, the delimiters for the PROMPT and YESNO features
+have changed from [] to {}.  Existing configurations files that
+use these operations will have to be changed to reflect this.
+
+
 BUG FIXES
 
 - Fixed longstanding problem that prompt strings within PROMPT and
@@ -25,7 +32,10 @@
   the displayed list.
 
 - Variable references are now evaluated at command *execution* time.
-  (Previously they were evaluated at command definition time).
+  (Previously they were evaluated at command definition time).  This
+  was done to make it possible to include variable references
+  within PROMPT and YESNO operations that would not be evaluated
+  until the command was actually run.
 
 - File lengths are now normalized for files > 1KB, 1MB, and 1GB.
   Previously files less than 1MB were shown as actual length and files