V0.20.6 release notes (#2520)

* update release.md

* update release.md

* update release.md

* update release.md

release.md

@@ -2,21 +2,18 @@
 # Netmaker v0.20.6
 
 ## Whats New
-- Extclient Acls
-- Force delete host along with all the associated nodes
+- Sync clients with server state from UI
 
 ## What's Fixed
-- Deprecated Proxy
-- Solved Race condition for multiple nodes joining network at same time
-- Node dns toggle
-- Simplified Firewall rules for added stability
+- Upgrade Process from v0.17.1 to latest version can be now done seamlessly, please refer docs for more information
+- Expired nodes clean up is handled correctly now
+- Ext client config generation fixed for ipv6 endpoints
+- installation process will only generate certs required for required Domains based on CE or EE
+- support for ARM machines on install script
 
 ## known issues
-- Expired nodes are not getting cleaned up
 - Windows installer does not install WireGuard
 - netclient-gui will continously display error dialog if netmaker server is offline
-- Incorrect metrics against ext clients
-- Host ListenPorts set to 0 after migration from 0.17.1 -> 0.20.6
 - Mac IPv6 addresses/route issues
 - Docker client can not re-join after complete deletion
 - netclient-gui network tab blank after disconnect