The main tc39/proposals (on Github) Repo lists that proposal as currently Stage 2. Appears to be under active review for Stage 3: https://github.com/tc39/propos

The main tc39/proposals (on Github) Repo lists that proposal as currently Stage 2. Appears to be under active review for Stage 3: https://github.com/tc39/proposal-record-tuple/issues/336 https://github.com/tc39/proposal-record-tuple/issues/336