[Standards] NEW: XEP-0490 (Message Displayed Synchronization)

Version 0.1.0 of XEP-0490 (Message Displayed Synchronization) has been released. Abstract: This specification allows multiple clients of the same user to synchronize the displayed state of their chats. Changelog: * Promoted to Experimental (XEP Editor: dg) URL: https://xmpp.org/extensions/xep-0490.html Note: The information in the XEP list at https://xmpp.org/extensions/ is updated by a separate automated process and may be stale at the time this email is sent. The XEP documents linked herein are up-to- date.