The Mac copied the iPhone's homework. This time we allowed it. - turning on disappearing messages no longer takes your old history with it - a call does not start until you answer - someone you only know from a group asks permission first, and you decide on your iPhone - only your contacts can add you to a new group - when two people edit a scheduled call at once, both end up with the same version

The lock on your Mac is less alarming now: the menu bar shows a message bubble with a lock inside. Your chats are locked, not your computer.

You can put your phone down: group calls, screen sharing and files up to a gigabyte are now on your Mac. Calls • Group calls for up to five - voice or video, right from your Mac. • Screen sharing: the others see exactly what you see. • Three call views - Tiles, Presentation and Full frame. And a small window stays on top of the others while you work. • Left a call that is still going? One click brings you back. • Answered on another of your devices? Your Mac goes quiet. • "Call back" - right in the Calls section. • If someone takes a screenshot during a call, everyone sees a banner. Scheduled calls • In groups and one-to-one: topic, voice or video, time - and "Going / Not going". • Reminders 10 minutes before and at the start. Your Mac sets them itself: the server knows nothing about the call. • The next one sits as a bar under the chat header, the rest behind "+N". Info shows who is coming and who got the invitation. • Pick the time like on iPhone: big digits, ready-made options and a wheel. Files • Files and videos up to 1 GB. Sent in parts and resumed after a dropped connection - even after a restart. You see the speed. • Changed your mind? Cancel - Tysha will double-check. • Only files under the limit you choose download on their own: 20, 50 or 100 MB, or none. Photos and voice messages always do. • Videos show a frame before you download them. • An album is forwarded whole, not photo by photo. Messages • Mentions in groups: type @ and the person sees "you were mentioned". • React with any emoji, and you decide what goes in the quick row. • Search shows every message it finds on its own line. • Message Info: when it was delivered and read, a Protection section, and in a group - who received it and who read it, by name. • "Delete for me" removes a message with its file on all your devices. • Contact labels now show in color, as on iPhone. • Group admins can now change the group photo and name from the Mac too. • A chat with new messages opens from the first click. • A new version in the App Store? Tysha tells you in a single line. Security • Photos and videos are sent without location or time of capture. If that can't be stripped, the picture isn't sent. • Video frames are shown only from your contacts, and only as a genuine JPEG. • Before you save or share a large file, Tysha warns that it will leave the app unencrypted. • "Forwarded" shows the author's name only to someone who knows them.