access operators should continue to work, as it implements the ArrayAccess
interface).
* Option to mark hooks as deprecated has been added.
+* (bug 52811) Preference "Enable section editing via [edit] links" was removed.
+* (bug 52813) Preference "Show table of contents (for pages with more than
+ 3 headings)" was removed.
==== Removed classes ====
* FakeMemCachedClient (deprecated in 1.18)