Native v8.1.0

Role management now lets you add members during creation or editing, and blocking is more effective—blocked users' messages no longer affect unread counts, send notifications, or show up in message previews. We've also fixed numerous issues including slow thread images, overlapping text labels, scrolling problems, typing after mentions, notification bugs, and missing admin alerts for group admission requests.

• Adds the ability to add members to a role while creating or editing a role.
• Improves the experience of blocking other users by stopping messages from blocked users from incrementing the unread count of a channel or group, stopping notifications from being emitted, and removing them from channel and group recent message previews.
• Adds a message to the empty Activity screen.
• Fixes an issue where images were slow to send in Chat threads.
• Fixes an issue where the "Edited" label on messages would occlude the message content.
• Fixes an issue where the emoji reactions sheet wouldn't scroll.
• Fixes an issue where inserting characters immediately after a @-mention in chat would remove the characters.
• Fixes an issue where a Chat channel would occasionally "bounce" while messages out of view would load.
• Fixes an issue where roles would incorrectly appear in push notifications when assigned.
• Fixes an issue where an invitation to a group would produce a push notification that read "New Message."
• Fixes an issue where filtering the emoji picker would leave unsightly gaps in the sheet.
• Fixes an issue where comments posted on Gallery items would not automatically scroll the viewport when sent.
• Fixes an issue where people asking for admission to private groups would not send push notifications to group administrators.