Index: changelog.md
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--- changelog.md	(.../changelog.md)	(revision 3e3666a02c3b5a57feb1debcf852670e82ba33e5)
+++ changelog.md	(.../changelog.md)	(revision c3e3aff317322cefe663fc2c365734907962a35c)
@@ -1,8 +1,19 @@
 # Dialin Changelog
 
 All notable changes to this project will be documented in this file.
+### [0.2.1] - 2020-07-15
+#### Added
 
+- DG Dialysate Temperature monitoring
+    - `dg.ro_pump`, `dg.temperature_sensors`
 
+#### Fixed
+
+- PEP8 compliance of `dg.heaters`
+- Integration test for `dg.heaters`
+
+
+
 ### [0.2.0] - 2020-06-30
 #### Added
 - Ability to attach / detach multiple observers