Add missing UPGRADE-4.2 entry for Controller deprecation

Robin Chalas · Robin Chalas · commit cc23f5d5fd94 · 2018-09-08T15:15:53.000+02:00
diff --git a/UPGRADE-4.2.md b/UPGRADE-4.2.md
@@ -84,6 +84,7 @@ FrameworkBundle
    this will generate 404s for non-UTF-8 URLs, which are incompatible with you app anyway,
    and will allow dumping optimized routers and using Unicode classes in requirements.
  * Added support for the SameSite attribute for session cookies. It is highly recommended to set this setting (`framework.session.cookie_samesite`) to `lax` for increased security against CSRF attacks.
+ * The `Controller` class has been deprecated, use `AbstractController` instead.
 
 Messenger
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