Rundeck version compatibility

Hi
Thank you for the plugin  it will resolve our logs storing policy on local machines.
  
  I have integrated the plugin in rundeck version 2.10.1 and the same plugin not working on rundeck version 2.6.9 .we have followed same configurations done on v 2.10 . please advice is this compatible with rundeck v 2.10 or it will compatible to all rundeck versions