The change is rolling out globally from today, giving men and women more flexibility over how a conversation begins. Bumble is also extending the time available to respond from 24 hours to 72 hours, which should make it less likely that a promising match disappears simply because someone was busy for a day. It is a notable shift for an app built around the idea that women should make the first move. Bumble says the update is not intended to abandon that principle, but to give members more...