diff --git a/README.md b/README.md
index 83e0010..638f0b3 100644
--- a/README.md
+++ b/README.md
@@ -40,4 +40,10 @@ check_godaddy -domain example.com -warn 30 -crit 14 -key 1234567890 -secret 1234
 
 ## License
 
-GoDaddy Domain Expiry Checker is licensed under the terms of the GNU General Public License Version 3.
\ No newline at end of file
+GoDaddy Domain Expiry Checker is licensed under the terms of the GNU General Public License Version 3.
+
+## Changelog
+| Release | Notes |
+|--------------------|--------------------------|
+| v1.05 | Added NRPE PerfData output: `expiry` provides unix time for cert expiration and `autorenew` provides bool for auto-renewal status. |
+| v1.00 | Initial release. |