Editions do not fragment the ecosystem at all. A crate written in rust 2015 can depend on a crate written in rust 2024 and vice versa. There are no forced upgra

Editions do not fragment the ecosystem at all. A crate written in rust 2015 can depend on a crate written in rust 2024 and vice versa. There are no forced upgrades. The only maintainers it causes a burden for are the compiler developers (and tech debt within the compiler). But this is pretty much unavoidable if the language is to evolve while remaining backwards compatible -- e.g. it's not like the c++ compiler has a lower rate of tech debt accrual.