Gajim support status for various XEPs

XEP	Support	Notes	XEP Status
XEP-0004 Data Forms	Yes	jid and jid-multi are missing	Final
XEP-0012 Last Activity	Yes		Final
XEP-0016 Privacy Lists	Yes		Draft
XEP-0022 Message Events	Yes	composing event only	Obsoleted, see XEP-0085 and XEP-0184
XEP-0027 Current Jabber OpenPGP Usage	Yes		Active
XEP-0030 Service Discovery	Yes		Final
XEP-0045 Multi-User Chat	Yes	all basics stuff are in and some more advanced stuff like invitations, creations of rooms etc	Draft
XEP-0047 In-Band Bytestreams (IBB)	No	Not needed, we use  XEP-0065 for bytestreams. See #2331	Draft
XEP-0048 Bookmark storage	Yes		Draft
XEP-0049 Private XML Storage	Yes	For Bookmark Storage & Metacontacts	Active
XEp-0050 Ad Hoc command	Yes		Draft
XEP-0054 vcard-temp	Yes	all fields	Active
XEP-0055 Jabber Search	Yes		Active
XEP-0065 SOCKS5 Bytestreams	Yes		Draft
XEP-0066 Out of Band Data	No	no support for urls in single messages	Draft
XEP-0070 Authenticating HTTP Requests via XMPP	Yes		Draft
XEP-0071 XHTML-IM	Yes		Draft
XEP-0085 Chat state notifications	Yes	all chatstates supported	Final
XEP-0086 Error Condition Mappings	Partial	//XXX: we need to take action upon every possible error	Deprecated, see XMPP Core
XEP-0090 Entity Time	Yes		Obsoleted, see XEP-0202
XEP-0091 Delayed Delivery	Yes		Obsoleted, see XEP-0203
XEP-0092 Software Version	Yes		Draft
XEP-0095 Stream Initiation	Yes		Draft
XEP-0096 File Transfer	Partial	Complete implementation requires XEP 0047	Draft
XEP-0105 Tree Transfer Stream Initiation Profile	No		Deferred
XEP-0107 User Mood	Yes		Draft
XEP-0108 User Activity	Yes		Draft
XEP-0115 Entity Capabilities	Yes	Version 1.5	Draft
XEP-0116 Encrypted Sessions	Yes	#544	Deferred, see XEP-0210
XEP-0118 User Tune	Yes		Draft
XEP-0135 File Sharing	No		Deferred
XEP-0144 Roster Item Exchange	Yes	Only addition part, not deletion and modification	Draft
XEP-0145 Annotations	Yes		Active
XEP-0146 Remote Controling Clients	Yes		Active
XEP-0153 vCard-Based Avatars	Yes		Active
XEP-0162 Best Practices for Roster and Subscription Management	Yes		Deferred
XEP-0163 Personal Eventing via Pubsub	Yes		Draft
XEP-0172 User Nickname	Yes		Draft
XEP-0174 Link-local messaging	Yes		Final
XEP-0175 Best Practices for Use of SASL ANONYMOUS	Yes		Active
XEP-0184 Message Receipts	Yes		Draft
XEP-0199 XMPP Ping	Yes		Final
XEP-0202 Entity Time	Yes		Draft
XEP-0203 Delayed Delivery	Yes		Draft
XEP-0237 Roster Versioning	Yes		Draft

P.S. this page always refers to live version of Gajim

P.P.S. Gajim may support more XEPs which we may have forgotten to list (XEPs are many)