It what now?

> In addition, the API is designed with TypeScript type inference in mind. The 3.x codebase will itself be written in TypeScript, and providing improved TypeScript support. (That said, usage of TypeScript in an application is still entirely optional.)

And:

> Top level APIs will likely receive an overhaul to avoid globally mutating the Vue runtime when installing plugins. Instead, plugins will be applied and scoped to a component tree.

And:

> We are breaking some internal functionalities into individual packages in order to isolate the scope of complexity. For example, the observer module will become its own package, with its own public API and tests. [...] Decoupling the observer and scheduler into separate packages

And:

> The new codebase currently targets evergreen browsers only and assumes baseline native ES2015 support. Most of the ES2015 features used can be transpiled / polyfilled for IE11

The above is exactly what I referred to and all taken verbatim from the article. It is Angular 2.x+ all over again.