In a direct message, select the person's name at the top to open Conversation details: who they are, Mute notifications and Block. The profile card's Mute sound is now Mute notifications: a muted person's messages play no sound in Magpie tabs and send no push notification to your phone. They still count as unread. Someone you blocked no longer notifies your phone either, and each of their hidden messages says so in the conversation. Account settings now lists Blocked people, with Unblock beside each. In the app, a direct message's menu opens the person, where you can mute their notifications or block them.
Mute notifications from one person, and block from a direct message
In Team chat, select a person's name to mute their notifications or block them. Muting now also stops the app's push notifications.