I think in general most people won't be able to upgrade to v6 since in the latest beta
useBlocker are removed.
Most apps rely on the
Prompt to prevent navigation in case the user has unsaved changes (aka the
form is dirty).
With this issue maybe we can have some feedback on why they (
Prompt) were removed (they worked fine in the previous beta version v6.0.0-beta.6) and what makes them problematic, what's the outlook for getting them back in the router and potentially userland solutions to this problem.