feature request: Conditional that checks whether WordPress is currently performing updates

[redsoulwarrior]

We've all been there; we select a bunch of plugins and update them all at once, the update process is starting and then one of the installed plugins is showing us some note in the backend like "learn more about the pro version of this plugin" or "a new plugin has been installed; purge the cache" or something similar.

In some cases, you can simply dismiss these notices and it won't affect anything. In others, clicking on the notice will take you to a different page.

In the worst case scenario, the update process is now stuck and the .maintenance file will never leave your web host unless you delete it manually via FTP.

My suggestion would be adding a conditional in the WordPress core that returns true while updates are being performed. This way, developers could check for said conditional and make sure that their little tooltips are only being displayed AFTER all updates have been concluded. So WordPress won't get stuck, even for novice users who haven't made this mistake 40 million times (like myself).