<!-- Instructions --> <!-- --> <!-- 1. Remove sections/details you do not complete --> <!-- 2. Add sections/details useful to you --> #### What - https://devblogs.microsoft.com/typescript/announcing-typescript-4-3-rc/ #### Why - stay modern internally, no user-facing reason right now #### How - should be a simple upgrade by blocked by https://github.com/colinhacks/zod/issues/473
