mod_vcard_muc: Add an alternative method of signaling avatar change When the avatar has been changed, a signal is sent that the room configuration has changed. Clients then do a disco#info query to find the SHA-1 of the new avatar. They can then fetch it as before, or not if they have it cached already. This is meant to be less disruptive than signaling via presence, which caused problems for some clients. If clients transition to the new method, the old one can eventually be removed. The namespace is made up while waiting for standardization. Otherwise it is very close to what's described in https://xmpp.org/extensions/inbox/muc-avatars.html

---
labels:
- 'Stage-Alpha'
summary: 'Support XEP-0334: Message Processing Hints for MUC messages'
...

Introduction
============

This module will check for MUC messages with XEP-0334 Message
Processing Hints tags to qualify those messages as "historic"
for later MAM archiving or not.

Usage
=====

First copy the module to the prosody plugins directory.

Then add "muc\_mam\_hints" to your modules\_enabled list in your MUC
component:

``` {.lua}
Component "conference.example.org" "muc"
modules_enabled = {
  "muc_mam",
  "muc_mam_hints",
}
```