update change log

CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+
+## [3.8.1] - 2017-12-21
+### Fixed
+- Triggers panel multiple targets bug (typing in one target affects other)
+- Triggers panel event source icon
+
+
 ## [3.8.0] - 2017-12-20
 ### Added
 - Multiple data sources support for triggers panel, [#431](https://github.com/alexanderzobnin/grafana-zabbix/issues/431)
@@ -19,6 +26,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Triggers panel refreshing issues
 - aggregateBy() function bug, [#498](https://github.com/alexanderzobnin/grafana-zabbix/issues/498)
 
+
 ## [3.7.0] - 2017-10-24
 ### Added
 - PostgreSQL support for Direct DB Connection.