changelog: note about closing #9250

CHANGELOG.md

@@ -16,6 +16,7 @@
 * **Jaeger**: Add support for open tracing using jaeger in Grafana. [#9213](https://github.com/grafana/grafana/pull/9213)
 * **Unit types**: New date & time unit types added, useful in singlestat to show dates & times. [#3678](https://github.com/grafana/grafana/issues/3678), [#6710](https://github.com/grafana/grafana/issues/6710), [#2764](https://github.com/grafana/grafana/issues/6710)
 * **Cli**: Make it possible to install plugins from any url [#5873](https://github.com/grafana/grafana/issues/5873)
+* **dataproxy**: Allow grafan to renegotiate tls connection [#9250](https://github.com/grafana/grafana/issues/9250)
 
 # 4.5.2 (2017-09-22)