The `portblock` resource agent now supports promotable clones:: Previously, the `portblock` resource agent only supported simple active and inactive states. This made it impossible to coordinate port blocking and unblocking based on whether a node was in a primary or secondary role within a cluster. + With this enhancement, the `portblock` resource agent supports promotable clones. + As a result, you can configure `portblock` resources that use "Promoted" and "Unpromoted" states. For example, you can now create a configuration where unpromoted nodes block a specific port while the promoted node unblocks it, which is essential for managing traffic in certain active-passive service environments.