Erlang/OTP 29 Embraces Security-First Design and Native Data Structures

Erlang/OTP 29.0 marks a major security pivot by defaulting SSH services to disabled and adopting post-quantum hybrid cryptography (x25519mlkem768) as the preferred key exchange. The introduction of native records as true data types—rather than tuple-based workarounds—fundamentally improves how developers structure data on the BEAM. Together, these changes position Erlang as increasingly aligned with modern security requirements and contemporary language design.