Yes and no. We have replaceable events that make content mutable. So even though each version is immutable, apps still need to deal with a lot of mutations.
Replaceable events are identified by address (as distinct from ID).
You can have multiple different IDs at the same address. Clients and relays have to choose how to handle this case. The most typical approach, of course, is to display the most recent event, but other approaches are possible.
The events themselves (as uniquely identified by ID) are still immutable.
You can have multiple different IDs at the same address. Clients and relays have to choose how to handle this case. The most typical approach, of course, is to display the most recent event, but other approaches are possible.
The events themselves (as uniquely identified by ID) are still immutable.