diff --git a/temp/0.66.0-relnotes.md b/temp/0.66.0-relnotes-ready.md
similarity index 91%
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+This relase adds [inline `@import`](http://localhost:1313/hugo-pipes/postcss/#options) support to `resources.PostCSS`, with imports relative to Hugo's virtual, composable file system. Another useful addition is the new `build` [configuration section](http://localhost:1313/getting-started/configuration/#configure-build). As an example in `config.toml`:
+
+```toml
+[build]
+  useResourceCacheWhen = "always"
+```
+
+The above will tell Hugo to _always_ used the cached build resources inside `resources/_gen` for the build steps requiring a non-standard dependency (PostCSS and SCSS/SASS). Valid values are `never`, `always` and `fallback` (default).
+
+
 This release represents **27 contributions by 8 contributors** to the main Hugo code base.[@bep](https://github.com/bep) leads the Hugo development with a significant amount of contributions, but also a big shoutout to [@anthonyfok](https://github.com/anthonyfok), [@carlmjohnson](https://github.com/carlmjohnson), and [@sams96](https://github.com/sams96) for their ongoing contributions.
 And a big thanks to [@digitalcraftsman](https://github.com/digitalcraftsman) and [@onedrawingperday](https://github.com/onedrawingperday) for their relentless work on keeping the themes site in pristine condition and to [@davidsneighbour](https://github.com/davidsneighbour) and [@kaushalmodi](https://github.com/kaushalmodi) for all the great work on the documentation site.