Prepare changelog for upcoming release

Author: urfeex

CHANGELOG.rst

@@ -2,6 +2,14 @@
 Changelog for package ur_description
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
+Forthcoming
+-----------
+* Add support for UR15 (`#290 <https://github.com/UniversalRobots/Universal_Robots_ROS2_Description/issues/290>`_)
+* Add documentation about the different base and base_link frames (`#286 <https://github.com/UniversalRobots/Universal_Robots_ROS2_Description/issues/286>`_)
+* [BREAKING] changes for Kilted (`#280 <https://github.com/UniversalRobots/Universal_Robots_ROS2_Description/issues/280>`_)
+* Branch jazzy (`#284 <https://github.com/UniversalRobots/Universal_Robots_ROS2_Description/issues/284>`_)
+* Contributors: Felix Exner
+
 3.1.1 (2025-05-05)
 ------------------
 * Add kilted (`#279 <https://github.com/UniversalRobots/Universal_Robots_ROS2_Description/issues/279>`_)