When a policy plugin needs to be updated, the UI states that:

"Any published APIs already using the plugin will continue to use the old version. All new policies will use the newly upgraded version."

This is very problematic when a bug fix is found in a plugin and a new policy version needs to be published. The only way I have found to do this in 1.2.2.Final is to upgrade the plugin through the UI, and then I have to manually update the war version number inside the policyDef (in my case directly in ElasticSearch) because the definition doesn't seem to automatically get updated when I upgrade the plugin (this may warrant an extra bug ticket in itself). I then have remove and re-add the policy to all APIs that use it.

There should be a way to update the version of the policy you want applied to one or more APIs and be able to re-publish to the gateways.

David