Running sessions previously suppressed the ordinary unread dot, hiding
answers the user had not seen. Unread is now
manualUnread || contentRevision > readRevision on web, iOS and Android.
Web rows draw the running/background spinner beside the unread dot, and
unread outranks background status. Because session patches arrive before
the message they count, a chat following its visible tail hides its own
ordinary dot until the rendered acknowledgement lands (display-only; web
and iPad split view).
Track readable content revisions and durable read cursors in the hub. Acknowledge only rendered foreground tails, persist offline read operations, and preserve newer manual unread choices across devices.
Migrate existing history to a read baseline and cover pagination receipts with shared native conformance fixtures.
weishu