* **a11y:** add title to copy code button ([#1437](https://github.com/vuejs/vitepress/issues/1437)) ([f79bb78](https://github.com/vuejs/vitepress/commit/f79bb78bf7f472d9bc376a3ec393f731bfe9e7ce))
* **theme:** disable transitions on theme toggle ([#1447](https://github.com/vuejs/vitepress/issues/1447)) ([067e1a9](https://github.com/vuejs/vitepress/commit/067e1a97434f88835dbfedcf18e2f98d8bfacad9))
* **theme:** make text prop of VPHero optional ([#1445](https://github.com/vuejs/vitepress/issues/1445)) ([95e4f2a](https://github.com/vuejs/vitepress/commit/95e4f2acc9614360fbfe37450028d2067e5993b8))
### Reverts
* "fix(build): remove leading underscore from chunks" ([#1471](https://github.com/vuejs/vitepress/issues/1471)) ([18f0fb4](https://github.com/vuejs/vitepress/commit/18f0fb4e3989192ba95a397476371a945bf84542))