chore: release s2 button (next) (#2722)

* chore: release s2 button (next)

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Patrick Fulton <360251+pfulton@users.noreply.github.com>

Author: 2 people

components/button/CHANGELOG.md

@@ -103,13 +103,25 @@ The following `--mod` custom properties have been renamed:
 
 ## 13.1.0
 
-### Minor Changes
+### Major Changes
 
-- [#2616](https://github.com/adobe/spectrum-css/pull/2616) [`7f45ea9`](https://github.com/adobe/spectrum-css/commit/7f45ea95d3d31addf29b0720de8623b0f3f0431d) Thanks [@castastrophe](https://github.com/castastrophe)!
+- [#2600](https://github.com/adobe/spectrum-css/pull/2600) [`3559678`](https://github.com/adobe/spectrum-css/commit/35596780a1309dd145fa565461d330ddfaf50e68) Thanks [@jawinn](https://github.com/jawinn)! 
+
+#### Spectrum 2 migration
+  Button now uses Spectrum 2 tokens and specifications, which includes many color changes to all variants. A few other notable changes:
 
-#### Build optmizations to support minification
+  - Outline buttons are no longer available in accent and negative options — use the filled variant instead.
+  - Medium size is now the default. The class `.spectrum-Button--sizeM` is now unnecessary for this size, and has been removed.
+  - The `.spectrum-Button--fill` class is no longer needed and has been removed.
 
-Output for all component CSS files is now being run through a lightweight optimizer (cssnano) which significantly reduces unnecessary whitespace. These changes reduce file size but should not have any impact on the rendering of the component. By removing unnecessary whitespace from var functions, we are making it easier to effectively minify our provided CSS assets.
+  The following `--mod` custom properties have been renamed:
+
+  - `--mod-line-height-100` has been renamed to `--mod-button-line-height`
+  - `--mod-sans-font-family-stack` has been renamed to `--mod-button-font-family`
+  - `--mod-animation-duration-100` has been renamed to `--mod-button-animation-duration`
+  - `--mod-bold-font-weight` has been renamed to `--mod-button-font-weight`
+
+## 14.0.0-next.5
 
 <a name="13.0.0"></a>