About this site

Presence & Protocol is an independent editorial site about Jabber and XMPP. It is written by a small desk that signs collectively, The editors of Presence & Protocol. We do not publish personal bylines, because the work is edited jointly and the responsibility is joint.

What this site is not

It is not the XMPP Standards Foundation, and it has no role in the standards process. It is not Cisco Systems, which owns the Jabber trademark. It does not run a server, does not operate a service, and does not administer any logo programme. When we describe a specification, the specification is the authority and we link to it.

What happened at this address before

Between roughly 2001 and 2005 this domain hosted the JabberPowered logo programme: a small set of pages offering badge artwork, a directory of software and services that used Jabber, and a page of usage rules. The archived pages state that the mark belonged to Jabber, Inc. and was licensed through the Jabber Software Foundation. That programme is over, we have no part in it, and we do not redistribute its artwork. Three of its addresses are answered here with new editorial pages on the same subject: the guidelines page, the logos page and the directory page.

Where the facts come from

The core of XMPP is defined by documents anyone can read: RFC 6120 for the core protocol, RFC 6121 for instant messaging and presence, RFC 7622 for address formats, and the extension series published by the XSF. The dated history we use is the timeline the XSF publishes about itself. When a claim on this site is precise, it is because one of those documents says so, and we say which one.

Corrections

If a page here is wrong, we would rather know than be right. Write to the desk from the contact page. Corrections are made on the page itself; we do not quietly delete a page to make an error disappear. How we choose subjects and check them is described in the editorial policy.