Update Changelog.md

Changelog.md

@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.70] - 2021-08-20
+- DBOARD3-459: fix performance issue with /poller/interfaces
+- POL1-483: add dashboard mappings to /poller/interfaces response
+- POL1-479: add LAG/SRV_L3VPN to RE_PEER dashboards
+- updated GWS direct data to support ipv6 creds
+
 ## [0.69] - 2021-06-30
 - DBOARD3-444: Added related services to bundle member response