They do phased rollouts of firmware typically. Sometimes it can be over a month before it is offered to you (but usually not that long). Sometimes they pause a rollout if there are issues too.
You can manually update using the file from the site if there is something specific you need.
Seems a bit silly of Wyze to do this without warning. When I click RTSP in the app, it says I have to update the firmware, but if the rollout hasn’t reached me yet, it makes that message frustrating.
Is your firmware beta? Your version isn’t listed in the released firrmware. Maybe if you manually downgrade to the last production release it will let you upgrade to the latest? You should have gotten it by now since it came out 6 or so weeks ago.
EDIT - yeah that’s a beta version. While beta should upgrade to production, it may be confusing it. I’d try putting the last production one on and then see if it lets you upgrade.