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Editions can fix syntax level flaws, but many semantic flaws or flaws in the standard library can't be fixed like that.

• staticassertion 5y ago
  Why not?
  • steveklabnik 5y ago
    Editions can only change the very front-end of the compiler, and the standard library must be able to be used in all editions, so it’s not really possible to change on a per-edition basis. There’s only one copy of it globally unlike other Rust packages.
    • staticassertion 5y ago
      Got it - thanks, I'd never really considered that.