The 2.277.4.4 release only includes an update to CloudBees CI on traditional platforms.
Remove the jquery and jquery-detached plugins from your CloudBees Jenkins Platform instance
The jquery and jquery-detached plugins have been removed from all CloudBees Jenkins-based products and are no longer part of CloudBees Assurance Program. However, these plugins are not automatically uninstalled from your CloudBees Jenkins Platform instance as other plugins you use may still have dependencies on them. Please ensure that your CloudBees Jenkins Platform instance does not have any dependencies on these plugins, and then remove them. For instructions on how to check for dependencies in a particular plugin, refer to How to determine if a plugin is in use.