[skip ci] Changelog update

framework/CHANGELOG.md

@@ -12,6 +12,7 @@ Yii Framework 2 Change Log
 - Enh #6467: `ActiveForm` will scroll to the nearest visible element when the first error input is hidden (newartix)
 - Enh #6488: Support changing `yii\base\Theme::basePath` during runtime (qiangxue)
 - Chg #6427: In case of invalid route web application now throws exception with "Page not found" instead of "Invalid Route" (cebe, samdark)
+- Chg #6641: removed zero padding from ETag strings (DaSourcerer)
 
 2.0.1 December 07, 2014
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