How do you view the number of updates an app received in App Store connect

 I recall in the older version that info was readily available.

Ancient version of what ?

If you go to metrics, you get the number of App Units – each first-time installer. So comparing to the number of downloads (larger as it includes upgrades), gives you an idea (not precise number) of how many have upgraded.

If you play with time periods, selecting after publish of upgrade, you will get more precise information comparing App Units and downloads.

For instance:

• upgrade on 1.1.2023
• after 1.1.2023 app units = 20 - downloads 50
• then after 1.1.2023, all downloads are with the new version ; 20 are first users, 30 are for upgrade.

Hope that helps.