History.md in schedulability-0.3.0 vs History.md in schedulability-0.4.0

@@ -1,19 +1,31 @@
+## v0.4.0 [2018-09-12] Michael Granger <[e-mail]>
+
+Bugfixes:
+
+- Remove mixins only used in the specs.
+- Fix indentation warnings
+- Fix README examples
+
+
 ## v0.3.0 [2016-07-29] Michael Granger <[e-mail]>
 
 Bugfix:
-- Add support for 0th hour and 12am (thanks to 
+
+- Add support for 0th hour and 12am (thanks to
   Meining Lu <[e-mail]> on Github for the patch)
 
 
 ## v0.2.0 [2016-07-20] Michael Granger <[e-mail]>
 
 Bugfixes:
+
 - fixes for the 0th second or minute, and the 59th second
   (thanks to Jason Rogers <[e-mail]> for the patch)
 - Make Schedule#empty? take negative periods into account
 
 Enhancements
+
 - Add missing Schedule#overlaps? and #exclusive predicate methods.
 - Add a Schedule#to_s that stringifies them back into schedule descriptions