[JENKINS-62231] Warn about downgrade issue
[JENKINS-62231] Warn about downgrade issue

mkozell/ec2-plugin,jenkinsci/ec2-plugin,jenkinsci/ec2-plugin,mkozell/ec2-plugin,jenkinsci/ec2-plugin,mkozell/ec2-plugin,mkozell/ec2-plugin,jenkinsci/ec2-plugin