XMPP Basic Client 2008 This document defines the XMPP Basic Client 2008 compliance level. This XMPP Extension Protocol is copyright © 1999 – 2024 by the XMPP Standards Foundation (XSF). Permission is hereby granted, free of charge, to any person obtaining a copy of this specification (the "Specification"), to make use of the Specification without restriction, including without limitation the rights to implement the Specification in a software program, deploy the Specification in a network service, and copy, modify, merge, publish, translate, distribute, sublicense, or sell copies of the Specification, and to permit persons to whom the Specification is furnished to do so, subject to the condition that the foregoing copyright notice and this permission notice shall be included in all copies or substantial portions of the Specification. Unless separate permission is granted, modified works that are redistributed shall not contain misleading information regarding the authors, title, number, or publisher of the Specification, and shall not claim endorsement of the modified works by the authors, any organization or project to which the authors belong, or the XMPP Standards Foundation. ## NOTE WELL: This Specification is provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. ## In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall the XMPP Standards Foundation or any author of this Specification be liable for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising from, out of, or in connection with the Specification or the implementation, deployment, or other use of the Specification (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if the XMPP Standards Foundation or such author has been advised of the possibility of such damages. This XMPP Extension Protocol has been contributed in full conformance with the XSF's Intellectual Property Rights Policy (a copy of which can be found at <https://xmpp.org/about/xsf/ipr-policy> or obtained by writing to XMPP Standards Foundation, P.O. Box 787, Parker, CO 80134 USA). 0211 Obsolete Standards Track Standards Council XMPP Core XMPP IM XEP-0030 XEP-0106 XEP-0115 XEP-0138 XEP-0242 N/A Peter Saint-Andre stpeter@stpeter.im stpeter@jabber.org https://stpeter.im/ 1.0 2007-07-11 psa

Per a vote of the XMPP Council, advanced to Draft.

 0.6 2007-07-11 psa

Changed XEP-0115 to recommended.

 0.5 2007-06-18 psa

Removed implementation note about XMPP ICA.

 0.4 2007-06-14 psa

Per community discussion, changed XMPP Core and XMPP IM references back to RFCs with recommendation for developers to also consult bis drafts; added reference to XEP-0178; suggested bundling of root certificate for XMPP ICA.

 0.3 2007-06-11 psa

Changed XMPP Core and XMPP IM references to bis drafts; added implementation notes.

 0.2 2007-05-11 psa

Added JID Escaping (XEP-0106) and Stream Compression (XEP-0138) as recommended.

 0.1 2007-04-20 psa

Initial published version.

 0.0.1 2007-03-30 psa

First draft, split from XEP-0073.

The XMPP Standards Foundation (XSF) The XMPP Standards Foundation (XSF) is an independent, non-profit membership organization that develops open extensions to the IETF's Extensible Messaging and Presence Protocol (XMPP). For further information, see <https://xmpp.org/about/xmpp-standards-foundation>. defines protocol suites for the purpose of compliance testing and software certification. This document specifies the XMPP Basic Client 2008 certification level.

The XMPP Basic Client 2008 certification level is defined as follows:

Specification Requirement Level
RFC 6120 RFC 6120: Extensible Messaging and Presence Protocol (XMPP): Core <http://tools.ietf.org/html/rfc6120>. REQUIRED
RFC 6121 RFC 6121: Extensible Messaging and Presence Protocol (XMPP): Instant Messaging and Presence <http://tools.ietf.org/html/rfc6121>. REQUIRED
Service Discovery (XEP-0030) XEP-0030: Service Discovery <https://xmpp.org/extensions/xep-0030.html>. REQUIRED
JID Escaping (XEP-0106) XEP-0106: JID Escaping <https://xmpp.org/extensions/xep-0106.html>. RECOMMENDED
Entity Capabilities (XEP-0115) XEP-0115: Entity Capabilities <https://xmpp.org/extensions/xep-0115.html>. RECOMMENDED
Stream Compression (XEP-0138) XEP-0138: Stream Compression <https://xmpp.org/extensions/xep-0138.html>. RECOMMENDED

Some of the protocol specifications referenced herein have their own dependencies; developers must refer to the relevant specifications for further information.

Developers are advised to refer to Best Practices for Use of SASL EXTERNAL (XEP-0178) XEP-0178: Best Practices for Use of SASL EXTERNAL <https://xmpp.org/extensions/xep-0178.html>. regarding proper implementation of the SASL EXTERNAL mechanism in XMPP.

This document introduces no additional security considerations above and beyond those defined in the documents on which it depends.

This document requires no interaction with the Internet Assigned Numbers Authority (IANA) The Internet Assigned Numbers Authority (IANA) is the central coordinator for the assignment of unique parameter values for Internet protocols, such as port numbers and URI schemes. For further information, see <http://www.iana.org/>..

This document requires no interaction with the XMPP Registrar The XMPP Registrar maintains a list of reserved protocol namespaces as well as registries of parameters used in the context of XMPP extension protocols approved by the XMPP Standards Foundation. For further information, see <https://xmpp.org/registrar/>..