Introducing the OCaml Local Mode | OCaml Unboxed

Jane Street is refining the OCaml compiler's type system to introduce a "local mode" feature that enforces function parameters to remain within their execution scope, thereby preventing value escaping. This mechanism guarantees the isolation of mutations and facilitates safer resource management in callback patterns by ensuring local arguments cannot be stored or returned. While the feature remains experimental within the Jane Street branch, it aims to optimize allocation behavior for latency-sensitive code before potential upstream integration.