There is a lesson from that - and it is one of the reasons why e.g. Signal is a walled garden (as a service, not as a protocol): federated systems tend to be re

There is a lesson from that - and it is one of the reasons why e.g. Signal is a walled garden (as a service, not as a protocol): federated systems tend to be really hard to update to a radically different newer version of the protocol. You lose longevity, but gain flexibility if you go walled garden route.