Document about the version information (#842)

Author: mglaman

README.md

@@ -8,6 +8,10 @@ PHPStan is able to [discover symbols](https://phpstan.org/user-guide/discovering
 by Composer. However, Drupal does not provide autoloading information for modules and themes. This project registers 
 those namespaces so that PHPStan can properly discover symbols in your Drupal code base automatically.
 
+> [!NOTE]
+> With Drupal 11.2, Drupal core is now using PHPStan 2.0. The 1.x branch of phpstan-drupal will be supported until 
+> 11.1 loses security support when 11.3 is released.
+
 ## Sponsors
 
 <a href="https://www.undpaul.de/"><img src="https://www.undpaul.de/themes/custom/undpaul3/logo.svg" alt="undpaul" width="250" /></a> <a href="https://www.optasy.com/"><img src="https://optasy.com/themes/custom/optasy/img/logo_optasy.png" alt="Optasy" width="250"></a> <a href="https://www.fame.fi/"><img src="https://www.fame.fi/assets/images/fame-logo.png" alt="Fame Helsinki" width="250" ></a>