https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-2.html https://blogs.msdn.microsoft.com/typescript/2018/11/29/announcing-typescript-3-2/ Any application using tsickle for closure compatibility will need to update it's tsickle dependency to 0.34 PR Close #27536
The test was mentionning TS 3.0. PR Close #26433
PR Close #26151