Added changelog entry.

jacekbogdanski · jacekbogdanski · commit 969d04d6d647 · 2021-11-17T15:47:15.000+01:00
diff --git a/CHANGES.md b/CHANGES.md
@@ -1,6 +1,12 @@
 CKEditor 4 Changelog
 ====================
 
+## CKEditor 4.17.1
+
+Fixed issues:
+
+* [#4979](https://github.com/ckeditor/ckeditor4/issues/3757): Added cache key in [#4761](https://github.com/ckeditor/ckeditor4/issues/4761) started to breaking relative links for external CSS resources. The fix had been reverted and will be corrected in the upcoming release.
+
 ## CKEditor 4.17
 
 **Security Updates:**
