02 Dec 2016 import() to stage 3, private fields to stage 2; per 2016.12.01 TC39 · tc39/proposals@ab0c049
02 Dec 2016 Stage 3: “Shared Memory and Atomics” to stage 3, per 2016.11.30 TC39. · tc39/proposals@ed2c36f
13 Oct 2016 Normative: Remove arguments.caller poison pill by bterlson · Pull Request #689 · tc39/ecma262