**BREAKING CHANGE:**
The previous `<!-- @include: ./path/to/file -->` syntax silently ignored errors when files did not exist. This behavior was originally intended as an escape hatch while documenting includes, but better solutions now exist using Shiki transformers.
For most users, no code changes are required. If you now see errors, it means your includes are broken and were previously not being reported.
Users who intentionally reference non-existent files or want to document includes without resolving them can configure `markdown.codeTransformers` with a `postprocess` hook. See `docs/.vitepress/config.ts` in this repo for an example.
BREAKING CHANGE: `includeFiles` option in `postcssIsolateStyles` now defaults to `[/vp-doc\.css/, /base\.css/]` You can remove explicit `includeFiles` if you were using it just to run it on `vp-doc.css`. To revert back to older behavior pass `includeFiles: [/base\.css/]`. The underlying implementation is changed and `transform` and `exclude` options are no longer supported. Use `postcss-prefix-selector` directly if you've advanced use cases.
BREAKING CHANGE: vitepress now uses shiki instead of shikiji. If you’re on the latest version and using shikiji specific features, you just need to change imports. The shikijiSetup hook is renamed to shikiSetup.