Publish post on major release of sass-converter (#9225)

Merge pull request 9225

docs/_posts/2022-12-21-jekyll-sass-converter-3.0-released.markdown

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+---
+title: Jekyll Sass Converter 3.0 Released
+date: 2022-12-21 17:52:15 +0530
+author: ashmaroli
+category: community
+---
+
+Jekyll Sass Converter 3.0 shipped recently and is available to those using Jekyll 4.3 and above. This release contains major changes.
+Specifically, the plugin has **stopped using `sassc` for converting your Sass partials and stylesheets** into CSS files.
+Instead, the converter now uses the `sass-embedded` gem acting as an interface to Dart Sass, which is the current primary
+implementation of Sass under active development. The secondary implementation `libsass` which the `sassc` gem interfaced
+with has been deprecated by its developers.
+
+However, Dart Sass isn't *fully compatible* with older Ruby Sass workflow.
+
+## Requirements
+
+- Minimum Ruby Version: `Ruby 2.6.0` (all platforms).
+- Minimum Rubygems Version: `3.3.22` (for Linux-based platforms).
+
+## Migration Guide
+
+### Dropped `implmentation` Option
+
+In `v3.0.x`, `sass-embedded` is the only supported Sass implmentation, and therefore the config option
+`sass.implementation` introduced in `v2.2.0` has been removed.
+
+
+### Dropped `add_charset` Option
+
+The converter will no longer emit `@charset "UTF-8";` or a `U+FEFF` (byte-order marker) for `sassify` and `scssify`
+Jekyll filters and hence the redundant option `sass.add_charset` is no longer active.
+
+
+### Dropped `line_comments` Option
+
+`sass-embedded` does not support `sass.line_comments` option.
+
+
+### Dropped support of importing files with non-standard extension names
+
+`sass-embedded` only allows importing files that have extension names of `.sass`, `.scss` or `.css`. SCSS syntax in
+files with `.css` extension name will result in a syntax error.
+
+
+### Dropped support of importing files relative to site source
+
+In `v2.x`, the Converter allowed imports using paths relative to site source directory, even if the site source
+directory is not present in Sass' `load_paths` option. This is a side effect of a bug in the converter, which will remain as is in
+`v2.x` due to its usage in the wild.
+
+In `v3.x`, imports using paths relative to site source directory will not work out of box. To allow these imports, `.`
+(meaning current directory, or site source directory) need to be explicitly listed under `load_paths` option.
+
+
+### Dropped support of importing files with the same filename as their parent file
+
+In `v2.x`, the Converter allowed imports of files with the same filename as their parent file from `sass_dir` or
+`load_paths`. This is a side effect of a bug in the Converter, which will remain as is in `v2.x` due to its usage in the
+wild.
+
+In `v3.x`, imports using the same filename of parent file will create a circular import. To fix such imports, rename
+either of the files, or use complete relative path from the parent file.
+
+
+### Behavioral Differences in Sass Implementation
+
+There are a few intentional behavioral differences between Dart Sass and Ruby Sass. Please refer
+[Behavioral Differences from Ruby Sass][behavioral-differences] for details.
+
+[behavioral-differences]: https://github.com/sass/dart-sass#behavioral-differences-from-ruby-sass