"On top of that, Vue's template compiler is able to apply some smart optimizations during compilation, such as analyzing and hosting static sub trees to avoid unnecessary diffing on re-render," Evan You, who has been the principal developer of Vue, said. "The new rendering layer provides significant performance improvements compared to v1 and makes Vue 2.0 one of the fastest frameworks out there." Also, version 2.0's template syntax remains mostly compatible with 1.0 with minor deprecations, said You.
The upgrade supports server-side rendering, along with streaming and component-level caching, for fast renders. Libraries and tools including vue-router, vuex, vue-loader, and vueify have updated to support version 2.0. Vue core, vue-router and vuex 2.0, for state management, all have TypeScript typings shipped in npm packages. The Vue team has provided a migration guide and a CLI migration helper.