ChangeLog.md in dm-is-read_only-0.2.0 vs ChangeLog.md in dm-is-read_only-0.2.1

@@ -1,4 +1,8 @@
+### 0.2.1 / 2011-03-23
+
+* Require dm-core ~> 1.0.
+
 ### 0.2.0 / 2010-11-05
 
 * Added {DataMapper::Resource::State::ReadOnly}:
   * Inherits from the `Clean` state.
   * Raises {DataMapper::ReadOnlyError} exceptions when `set` or `delete`