[Standards] XEP-0191 leads to stale presence?

Kim Alvefur zash at zash.se
Sat Jun 22 16:21:21 UTC 2019


Also consider clients that do not understand XEP-0191, for which it
would be even more confusing, as they would not have any way to know that the
presence they've seen is stale. (Clients that implement '191 can know
via blocklist push.)

Having server generate unavailable presence when blocking and probe for
fresh presence when unblocking for the JID being (un-)blocked would help
keep all clients have a consistent view.

This should still look like the user doing the blocking went offline and
came back online from the perspective of the one being blocked?

Is this something that was implied all along by the XMPP RFCs but not
explicitly spelled out in XEP-0191 or a potentially breaking change to a
Draft XEP?

Kim "Zash" Alvefur
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