pub fn check_now(registry: &mut Registry) -> boolExpand description
Ask GitHub right now — no interval — and say where the installed build stands.
For devp init, which is deliberate and infrequent enough to be worth a round trip:
setting a machine up is exactly the moment to learn the binary is a version behind.
devp run deliberately does not use this; it goes through notify_if_outdated,
which is interval-gated so everyday work never waits on the network.
Returns true when the registry changed and needs saving.