Chats are more reliable in everyday use
Photos, delivery states, last-seen time, and push notifications became more reliable.
Why it matters
A chat photo now appears as a thumbnail only after an access check, while the full file opens from the same message. A media caption moves with the send instead of getting lost between screens.
One check means delivered and two mean read. Last-seen time is no longer replaced by an approximate value and appears only when Lets has current information.
On iPhone, push notifications are restored for foreground, background, and terminated states, while chat can recover after losing the network without duplicating a message on retry.
These changes are included in the current closed-beta build. A complete physical pass of the exact TestFlight binary remains a separate verification step.