Disable the -ms and -o prefixes for the filter property.

doc-src/content/CHANGELOG.markdown

@@ -29,6 +29,7 @@ The Documentation for the [latest preview release](https://beta.compass-style.org
 * [CSS3] Added a css3/hyphenation module for the `word-break` and `hyphens` properties.
 * [CSS3] Made the API more consistent across the different mixins in the transitions module.
 * [CSS3] The text-shadow mixin now supports the spread parameter and it is used to progressively enhance browsers that support it.
+* [CSS3] Add a mixin for the unofficial `filter` property. [Docs](/reference/compass/css3/regions/)
 * [CLI] Added a `-I` option for adding sass import paths via the CLI during compilation and project set up.
 * [Configuration] For better ruby and rails integration, the `add_import_path` command now accepts
  [Sass::Importer](https://sass-lang.com/docs/yardoc/file.SASS_REFERENCE.html#custom_importers) objects

frameworks/compass/stylesheets/compass/css3/_filter.scss

@@ -1,4 +1,7 @@
-// Provides cross-browser support (Webkit, Mozilla, MSIE, and Opera)
+@import "shared";
+
+// Provides cross-browser support for the upcoming (?) css3 filter property.
+//
 // Each filter argument should adhere to the standard css3 syntax for the
 // filter property.
 @mixin filter (
@@ -19,6 +22,6 @@
  }
  $filter : compact($filter-1, $filter-2, $filter-3, $filter-4, $filter-5, $filter-6, $filter-7, $filter-8, $filter-9, $filter-10);
  @include experimental(filter, $filter,
- -moz, -webkit, -o, -ms, not -khtml, official
+ -moz, -webkit, not -o, not -ms, not -khtml, official
  );
 }