The new tracker version installs itself when you close the tracker. What it brings:
Security hardening: the tracker windows run isolated and links open only in your browser.
The server address in the settings must start with https:// (or http://). After changing the server the tracker signs in again — it forgets the sign-in to the previous server. The server cannot be changed mid-flight.
After you change your password on the website, the tracker signs in again: the old sign-in stops working so nobody who knew it can use it.
The developer mode listing no longer shows your password or access keys — a screenshot is safe to post on the forum.
The new tracker version installs itself when you close the tracker. What it brings: