131 has upgraded to 132. This release will soon be released as a monthly update, separate from 128, the extended support release. You are safe to use this monthly version, as it will soon be formally released. I am using this version and have had no difficulties. If you prefer the extended support release, you can install it, but may have to locate a file named compatibility.ini in the profile folder and delete it.

David thank you very much for your reply. I don't really understand the difference between the extended support release and a (normal?) release, and the associated numbering. I have read the suggested link (Use of last profile with downgraded TB (131-> 128.3) but did not fully understand it.)

Can I just wait for the release of 132 and update to that. How do I stop automatic updates until I can manually install 132 when it is released?

This is a new direction, having two releases, one extended version for stability, and one with the latest enhancements updated monthly. the extended one is currently 128 and the monthly 132 (yes, 131 has already updated.) 132 is still a beta, but if you click help>about then it will upgrade to 132. To prevent future upgrades without your permission, click the settings>general and scroll down to the update area and tick the box to inform you of updates but not install without your ok.

David Thank you again. Just being a basic user, should I be on the ESR version? If so how do I do that?

With the beta version I get this warning message every time I open TB, it would be nice not to have to worry about it.