This is not mentioned in the article, but since it has performance implications for a ton of BEAM applications, it's probably relevant: OTP 27 will also include a new builtin JSON module, and I did a quick and dirty benchmark [1] of it against Elixir's (excellent) Jason library. It seems like it'll be a pretty good performance win for BEAM applications that work with JSON.
[1] https://zeroclarkthirty.com/2024-04-21-benchmarking-erlangs-...