Smack Jingle support

I have questions about smack supporting jingle protocol , in the new release of smack 4.2.2 there are old jinlge classes ,

  • are they stable to be used ?
  • what issues will run into or limitation they have ?
  • examples of implantation with smack and jingle
  • is there a paid version of smack where jingle is available
  • is there another library to integrate with that support jingle

There is no paid version

But there is professional support: GitHub - igniterealtime/Smack: A modular and portable open source XMPP client library written in Java for Android and Java (SE) VMs