Upon upgrading to GW18.1, I can't access the admin console from Chrome - I get "ERR_SSL_VERSION_INTERFERENCE". It was working fine 10 minutes ago on 18.0.2. Chrome is the latest Version 70.0.3538.77
Fortunately it works fine in Edge and Firefox, so it's no problem. Just a heads up for those intrepid souls jumping on 18.1.