changelog update

CHANGELOG.md

@@ -9,8 +9,9 @@
 ### Bugfixes
 
 - [#1949](https://github.com/influxdata/telegraf/issues/1949): Fix windows `net` plugin.
+- [#1775](https://github.com/influxdata/telegraf/issues/1775): Cache & expire metrics for delivery to prometheus
 
-## v1.1.1 [unreleased]
+## v1.1.1 [2016-11-14]
 
 ### Bugfixes
 
@@ -91,7 +92,6 @@ continue sending logs to /var/log/telegraf/telegraf.log.
 - [#1771](https://github.com/influxdata/telegraf/issues/1771): Delete nil fields in the metric maker.
 - [#870](https://github.com/influxdata/telegraf/issues/870): Fix MySQL special characters in DSN parsing.
 - [#1742](https://github.com/influxdata/telegraf/issues/1742): Ping input odd timeout behavior.
-- [#1775](https://github.com/influxdata/telegraf/issues/1775): Cache metrics for delivery to prometheus
 
 ## v1.0.1 [2016-09-26]