Typescript 3.9.2 (2020-05-09) ¶ See also https://github.com/microsoft/TypeScript/tree/v3.9.2 https://devblogs.microsoft.com/typescript/announcing-typescript-3-9/ https://devblogs.microsoft.com/typescript/announcing-typescript-3-9-rc/ https://typescript.developpez.com/actu/302117/TypeScript-3-9-est-disponible-et-s-accompagne-d-ameliorations-du-processus-d-inference-des-verifications-des-fonctions-non-appelees-et-bien-d-autres/