Microsoft is rolling out to Windows Insider testers in the Slow Ring its second test build of Windows 10 19H2, AKA 1909. Today's build includes fixes plus a handful of new features. The fixes can be applied immediately, but the new features are all turned off by default at the moment so that it can test the off-by-default technology it will use when it delivers this feature update to mainstream users this fall. Today's 19H2 test build, No. 18362.10005, adds a change enabling third-party digital assistants like Amazon's Alexa, to voice-activate above the Lock screen. It also includes a key-rolling or key-rotation feature that enables secure rolling of recovery passwords on MDM-managed Azure Active Directory devices in certain circumstances to help prevent accidental recovery-password disclosure. And it includes an update to keep Windows containers from supporting mixed-version container pod scenarios since Windows containers require matched host and container versions. However, as of right now, all of these new features are off by default in this test build, just as they will be in the final version of Windows 10 19H2/1909. Microsoft officials said the plan is that the team "may ship features in these updates turned off by default and turn them on via controlled rollouts" in the name of getting better feedback on overall build quality. Microsoft's plan is to follow up today's build with another 19H2 test build that turns these features back on for a subset of Insider testers. In addition to these features, today's 19H2 test build includes fixes that were part of the Cumulative update for the May 2019 Update which Microsoft released on Patch Tuesday last week. There's more but you need to visit OUR FORUM.