From fff1fdee1ff31ba69c091d4cee7dab4516fe009f Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Wed, 26 May 2021 19:55:59 +0200
Subject: [PATCH] Remove notice about reverted behavior

---
 UPGRADE-6.0.md | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/UPGRADE-6.0.md b/UPGRADE-6.0.md
index 82c722ef9e..87fe763d6e 100644
--- a/UPGRADE-6.0.md
+++ b/UPGRADE-6.0.md
@@ -158,11 +158,6 @@ Security
    in `PreAuthenticatedToken`, `RememberMeToken`, `SwitchUserToken`, `UsernamePasswordToken`,
    `DefaultAuthenticationSuccessHandler`.
  * Removed the `AbstractRememberMeServices::$providerKey` property in favor of `AbstractRememberMeServices::$firewallName`
- * Authentication tokens do not implement the deprecated `Serializable`
-   interface anymore. The consequence is that tokens that were serialized (e.g.
-   into the session) with PHP 7.3 or below cannot be unserialized anymore. It is
-   recommended to roll out a Symfony 5 application with PHP 7.4 or later first
-   before upgrading it to Symfony 6.
 
 TwigBundle
 ----------