ChangeLog.md in command_mapper-0.2.1 vs ChangeLog.md in command_mapper-0.3.0

@@ -1,4 +1,8 @@
+### 0.3.0 / 2022-11-11
+
+* Added {CommandMapper::Types::Dec}.
+
 ### 0.2.1 / 2022-04-22
 
 * Properly validate in {CommandMapper::OptionValue#validate} when an option,
   who's value is not required, is given `true`.
 * Omit `nil` arguments from {CommandMapper::Command#command_argv} if the