* The load.php entry point now enforces the existing policy of not allowing
access to session data, which includes the session user and the session
user's language. If such access is attempted, an exception will be thrown.
+* The number of internal PBKDF2 iterations used to derive the session secret
+ is configurable via $wgSessionPbkdf2Iterations.
=== New features in 1.28 ===
* User::isBot() method for checking if an account is a bot role account.
* Added a new hook, 'UserIsBot', to aid in determining if a user is a bot.
-* (T88044) Implemented one-click rollback handling via AJAX.
=== External library changes in 1.28 ===