History.md in schedulability-0.4.1 vs History.md in schedulability-0.5.0

@@ -1,4 +1,15 @@
+# Release History for schedulability
+
+---
+
+## v0.5.0 [2020-03-04] Michael Granger <[e-mail]>
+
+Improvements:
+
+- Update for Ruby 2.7
+
+
 ## v0.4.1 [2018-09-12] Michael Granger <[e-mail]>
 
 Bugfixes:
 
 - Fix more indentation warnings