What happened to "Windows 10 is the last version of Windows?" (eg. https://www.theverge.com/2015/5/7/8568473/windows-10-last-ve...)
Will the upgrade be in-place as per Windows 10 updates?
Will the upgrade be in-place as per Windows 10 updates?
That was just one employees comment at initial release and the guy probably just intended to communicate the idea Windows 10 will get continuous incremental features updates for a very long time without version change not make a lifelong promise they'll never make another version again (even though that's the literal meaning of what he ended up saying).
Upgrade wise it'll be free and automatic just like any normal Windows 10 update assuming your hardware qualifies.