メモリ安全性にstrictモードを導入しようという話が出てましたね

This document proposes a path toward an optional “strict” subset of Swift that prohibits any unsafe features. This subset is intended to be used for Swift code bases where memory safety is an absolute requirement, such as security-critical libraries.

https://forums.swift.org/t/prospective-vision-optional-strict-memory-safety-for-swift/75090

[Prospective vision] Optional Strict Memory Safety for Swift

Hello Swift Community, The Language Steering Group would like to gather feedback on a prospective vision for optional strict memory safety for Swift. Vision documents help describe an overall direction for Swift. The actual Swift changes for executing on the vision will come as a series of separate proposals, so concrete details (e.g., specifi...