Release alpha/beta/dev builds independent of Windows Insider builds
Currently early builds of MS Edge are tied to the Windows OS "Insider" channel which makes new features very tough to test/develop for. We ship a product to customers, and would like to have support for new Edge features available at the same time as Edge updates roll out. Currently this means we would need to run our dev and QA environments on the Windows Insiders channel, which isn't really antiquate. It would also mean we aren't running the same version of Edge that our customers are. As a result features tend to lag several weeks or even months behind. This increases the risk of bugs, since we develop funcationality using "feature detection." Any incompatibilities between implementations is known too late.
We should be able to run beta version of Edge along side the current release version on the stable Widnows channel.
This is something that we’d like to enable longer term. In the meantime, we have started to provide VMs for recent preview builds on dev.microsoftedge.com and are also working on a RemoteEdge solution to provide an app streaming solution based on Azure RemoteApp.