diff --git a/ChangeLog.md b/ChangeLog.md
index 46ddcea..1b447b9 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,10 @@
+## 0.2.0.0
+
+* Removed 'Flag'.
+* Changed notation: 'Named' is now '(:!)' in types, 'Arg' in patterns.
+* Added 'arg', 'argF'.
+* Support for optional parameters: see 'argDef', 'defaults', '(:?)'.
+
 ## 0.1.0.0
 
 * First version. Released on an unsuspecting world.
diff --git a/src/Named/Internal.hs b/src/Named/Internal.hs
index 3282a68..5cef1e8 100644
--- a/src/Named/Internal.hs
+++ b/src/Named/Internal.hs
@@ -181,13 +181,16 @@ argF _ (ArgF fa) = fa
 
 {- |
 
-A variation of 'arg' for optional arguments. Requires a default value in case
-the optional argument is missing:
+A variation of 'arg' for optional arguments. Requires a default value to handle
+the case when the optional argument was omitted:
 
 @
 fn (argDef \#answer 42 -> ans) = ...
 @
 
+In case you want to get a value wrapped in 'Maybe' instead, use 'argF' or
+'ArgF'.
+
 -}
 argDef :: Name name -> a -> name :? a -> a
 argDef _ d (ArgF fa) = fromMaybe d fa