- **router:** hashchange not emitted in certain cases ([#3637](https://github.com/vuejs/vitepress/issues/3637)) ([f6bd99e...6c0125b](https://github.com/vuejs/vitepress/compare/f6bd99eb1311238e1114301a767634b139327916...6c0125b65513531870f00ebef1ae11096027875a))
### Features
- set `__VITEPRESS__` for easy detection by plugins and other tools ([#3634](https://github.com/vuejs/vitepress/issues/3634)) ([f6bd99e](https://github.com/vuejs/vitepress/commit/f6bd99eb1311238e1114301a767634b139327916))