<li>Client connection optimizations: &xep0386; and &xep0409;, maybe also &xep0397;</li>
<li>Improved on-boarding of new users:
<ul>
<li>&xep0401; to create account invitations</li>
<li>&xep0379; for contact invitations</li>
<li><spanclass='ref'><linkurl='https://xmpp.org/extensions/inbox/ibr-token.html'>Pre-Authenticated In-Band Registration (XEP-xxxx)</link></span> to register accounts based on an invitation</li>
</ul>
</li>
<li>&xep0333;</li>
<li>&xep0369;</li>
<li>End-to-End Encryption (E2EE): &xep0380; for tagging encrypted messages, &xep0420; to protect all payloads; and also one or multiple of the following for actual encryption: