[ataylor32]

> ahead of 20H1 when all consumers presumably will be pushed to it

I'm not sure it will be part of 20H1. https://blogs.windows.com/msedgedev/2020/01/15/upgrading-new... says:

> If you’d prefer not to install Microsoft Edge manually, you can wait for it to be installed in a future update to Windows 10, following our measured roll-out approach over the next several months. We will start to migrate Windows 10 customers to the new Microsoft Edge in the coming weeks, starting with a subset of Windows Insiders in the Release Preview ring.

I'm guessing 20H1 will be released sooner than several months.

[WorldMaker]

That says they are starting now, so they are starting with 19H2 (in Release Preview to start, which is still 19H2 by the way, then into the wilds). "Several months" here could mean they want everything done by 20H1 (somewhere between March and May, given the usual pattern). I don't know if that also means that they are planning to move to packing New Edge in the RTW images for 20H1; so far 20H1 on Insiders still seems to have Edge Classic. But the clear thing is that these are clearly parallel rollouts right now.