Move breaking changes to correct location in CHANGELOG

CHANGELOG.md

@@ -1,3 +1,14 @@
+## Unreleased
+
+### Breaking Changes
+
+- Sass artifacts now require Dart Sass. The Ruby Sass and LibSass (C) compilers are no longer supported.
+- To improve performance of the default CSS bundle, responsive utility breakpoints other than `tablet:` have been disabled by default. Previously, `mobile-lg:` and `desktop:` utilities were also enabled. You can restore the original settings by overriding [the `$theme-utility-breakpoints` Sass variable](https://designsystem.digital.gov/documentation/settings/#utilities-settings).
+- Image URLs in stylesheets are no longer processed by `asset-path-if-exists`. For Rails integrations, consider using [the `$theme-image-path` Sass variable](https://designsystem.digital.gov/documentation/settings/#general-settings) in combination with [Sprockets `resolve_assets_in_css_urls` option](https://github.com/rails/sprockets-rails#initializer-options).
+- The deprecated `$image-path` Sass variable setting has been removed. Use `$theme-image-path` instead.
+- The deprecated `alerts/success-badge.svg` image has been removed. Use `alerts/success.svg` instead.
+- Removed `usa-alert__paragraph` alert helper class. Use [`measure-3` measure utility](https://designsystem.digital.gov/utilities/paragraph-styles/#max-width) instead.
+
 ## 6.7.0
 
 ### Improvements
@@ -68,15 +79,6 @@
 
 ## 6.3.2
 
-### Breaking Changes
-
-- Sass artifacts now require Dart Sass. The Ruby Sass and LibSass (C) compilers are no longer supported.
-- To improve performance of the default CSS bundle, responsive utility breakpoints other than `tablet:` have been disabled by default. Previously, `mobile-lg:` and `desktop:` utilities were also enabled. You can restore the original settings by overriding [the `$theme-utility-breakpoints` Sass variable](https://designsystem.digital.gov/documentation/settings/#utilities-settings).
-- Image URLs in stylesheets are no longer processed by `asset-path-if-exists`. For Rails integrations, consider using [the `$theme-image-path` Sass variable](https://designsystem.digital.gov/documentation/settings/#general-settings) in combination with [Sprockets `resolve_assets_in_css_urls` option](https://github.com/rails/sprockets-rails#initializer-options).
-- The deprecated `$image-path` Sass variable setting has been removed. Use `$theme-image-path` instead.
-- The deprecated `alerts/success-badge.svg` image has been removed. Use `alerts/success.svg` instead.
-- Removed `usa-alert__paragraph` alert helper class. Use [`measure-3` measure utility](https://designsystem.digital.gov/utilities/paragraph-styles/#max-width) instead.
-
 ### Improvements
 
 - Line height calculations are improved such that the [desired token size](https://github.com/uswds/uswds/blob/61a0d99f0e6b36c3758948ba6ac46140abc5e585/src/stylesheets/theme/_uswds-theme-typography.scss#L363-L371) will always apply regardless of font family or scale. ([#291](https://github.com/18F/identity-style-guide/pull/291))