The current version of Google Analytics (often called Universal Analytics) is going away in mid-2023. The new version of Google Analytics (known as GA4) is replacing it. 

You can read the full announcement here, but this is the most important part:

We are looking at options to install GA4 on your Google Analytics accounts, and will provide more information very soon.

Unfortunately, GA4 is not as user friendly as Universal Analytics. It is very likely that the basic types of analysis that we do everyday will be more difficult, at least at first. But we’re working hard to update our content to adjust to this new reality.

We promise to keep you informed and to let you know if any action from you is needed.