XEP	Support	Notes
XEP-0004: Data Forms	Yes
XEP-0009: Jabber RPC	Unknown
XEP-0012: Last Activity	Yes
XEP-0016: Privacy Lists	Yes	Simplified for common users
XEP-0022: Message Events	No
XEP-0030: Service Discovery	Yes
XEP-0045: Multi-User Chat	Yes
XEP-0047: In-Band Bytestreams	Yes
XEP-0048: Bookmarks	Yes	Implemented version  1.0 using Private XML Storage, not the current PEP-based specification
XEP-0049: Private XML Storage	Yes	For Bookmark Storage & Metacontacts
XEP-0050: Ad-Hoc Commands	Yes
XEP-0054: vcard-temp	Yes
XEP-0055: Jabber Search	Yes
XEP-0065: SOCKS5 Bytestreams	Yes
XEP-0066: Out of Band Data	No
XEP-0070: Authenticating HTTP Requests via XMPP	Yes
XEP-0071: XHTML-IM	Partial
XEP-0076: Malicious Stanzas	Yes
XEP-0083: Nested Roster Groups	No	#82
XEP-0085: Chat state notifications	Yes
XEP-0086: Error Condition Mappings	Unknown
XEP-0090: Entity Time	Yes
XEP-0091: Delayed Delivery	Yes
XEP-0092: Software Version	Yes
XEP-0095: Stream Initiation	Unknown
XEP-0096: File Transfer	Yes
XEP-0105: Tree Transfer Stream Initiation Profile	Unknown
XEP-0106: JID Escaping	Unknown
XEP-0107: User Mood	Yes
XEP-0108: User Activity	Yes
XEP-0115: Entity Capabilities	Yes
XEP-0118: User Tune	Yes
XEP-0126: Invisibility	Yes
XEP-0135: File Sharing	Unknown
XEP-0144: Roster Item Exchange	Yes
XEP-0145: Annotations	No
XEP-0146: Remote Controling Clients	Yes
XEP-0147: XMPP URI Scheme Query Components	Yes	#251
XEP-0153: vCard-Based Avatars	Yes
XEP-0154: User Profile	No
XEP-0155: Stanza Session Negotiation	No
XEP-0156: Discovering Alternative XMPP Connection Methods	Yes	#134
XEP-0162: Best Practices for Roster and Subscription Management	Unknown
XEP-0163: Personal Eventing via Pubsub	No
XEP-0166: Jingle	No
XEP-0167: Jingle RTP Sessions	No
XEP-0172: User Nickname	Unknown
XEP-0174: Link-local messaging	No	#15
XEP-0176: Jingle ICE-UDP Transport Method	No
XEP-0177: Jingle Raw UDP Transport Method	No
XEP-0181: Jingle DTMF	No
XEP-0184: Message Receipts	Yes
XEP-0186: Invisible Command	No
XEP-0191: Simple Communications Blocking	No
XEP-0194: User Chatting	Unknown
XEP-0195: User Browsing	No
XEP-0196: User Gaming	No
XEP-0197: User Viewing	No
XEP-0198: Stanza Acknowledgements	No
XEP-0199: XMPP Ping	Yes
XEP-0202: Entity Time	Yes
XEP-0203: Delayed Delivery	Yes
XEP-0206: XMPP Over BOSH	Yes
XEP-0209: Metacontacts	Unknown
XEP-0211: XMPP Basic Client 2008	Unknown
XEP-0213: XMPP Intermediate IM Client 2008	Unknown
XEP-0219: Hop Check	No
XEP-0221: Data Forms Media Element	No
XEP-0222: Persisting Objects via Pubsub	No
XEP-0223: Private Information via Pubsub	No
XEP-0224: Attention	Yes	Plugin
XEP-0226: Message Stanza Profiles	Unknown
XEP-0231: Bits of Binary	Unknown
XEP-0234: Jingle File Transfer	Unknown
XEP-0249: Direct MUC Invitations	No

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Other protocols	Support	Notes
File Transfer Preview	Yes
S5B optimizing extensions for Jabber	No	Psi supports the 'fast' mode.