Add note for end of feature development (#962)

* Add note for end of feature development

* Update README.md

Co-authored-by: mcop1 <[email protected]>

* Update README.md

* Update README.md

Co-authored-by: Jacob Dreesen <[email protected]>

* Update README.md

Co-authored-by: Jacob Dreesen <[email protected]>

---------

Co-authored-by: mcop1 <[email protected]>
Co-authored-by: Jacob Dreesen <[email protected]>

Author: 3 people

README.md

@@ -1,9 +1,20 @@
 # Pimcore Admin Classic Bundle
 
+> [!IMPORTANT]
+> This bundle has reached **end of feature development.** We will no longer
+> accept or review any pull requests related to new features or improvements for this bundle.
+>
+> However, we will continue to accept, review and merge bug fixes at least until the end of 2025.
+> 
+> Going forward, our focus will shift to finalizing Pimcore Studio.
+
+> [!WARNING]
 > **IMPORTANT: This bundle requires an additional license to be used with the Pimcore Community Edition.**
 > You can obtain this perpetual license by contacting [email protected] at a price of €1,480.
 > Unrestricted usage is included with the Pimcore Professional Edition and Enterprise Edition.
 
+
+
 The Admin Classic Bundle provides a Backend UI for Pimcore.
 It is based on the [ExtJS](https://www.sencha.com/products/extjs/) framework.