We've improved the status messages that show in a group message when members join or leave the group. To prevent multiple join or leave status showing in a row, existing statuses will now update if no new messages are posted in the conversation between statuses. In addition, these statuses will no longer trigger notifications of any kind.
Also, members will now gain instant access to the group message when they join a group. Previously, a member would not see the conversation in their messages until a new message was created in it.
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