Since 2019-09, DaiLambda has worked on a small secret project called SCaml, a compiler for smart contracts for Tezos blockchain. Now reaching its pre-release status, we have revealed its existence in Tezos Smart Contracts: Programming Languages and Formal Verification on 2019-11-22.
SCaml is a statically typed purely functional programming language. It is a strict subset of OCaml, which is wildly used in computer science and finance including Tezos protocol implementation. It compiles a subset of OCaml to Michelson, stack based VM language for Tezos smart contracts.