Nothing's certain except death and patches – so that 'final' Windows 10 19H2 build isn't really
https://www.theregister.co.uk/2019/10/23/windows_10_updates/
Having declared 18363.418 the final build for the Windows 10 November 2019 Update, the Windows Insider team has surprised no one at all by issuing patches ahead of release.
Last night the team thundered: "We will continue to improve the overall experience of 19H2 on customers' PCs as part of our normal servicing cadence" (its emphasis, not ours) as Windows Insiders running 19H2 received builds 18363.446 and 18363.448.
