### Bug Fixes * **$default-theme:** sidebar groups are not opened when directly navigating to these pages (fix [#2564](https://github.com/vuejs/vuepress/issues/2564)) ([#2565](https://github.com/vuejs/vuepress/issues/2565)) ([3ab9fca](https://github.com/vuejs/vuepress/commit/3ab9fca)) * **$markdown:** support path without file extension when importing code snippets ([#2677](https://github.com/vuejs/vuepress/issues/2677)) ([bb4ae4e](https://github.com/vuejs/vuepress/commit/bb4ae4e))