In 4.x there doesn't seem to be a current version number displayed to admins anywhere obvious (that I can see), when logging in to the AdminCP dashboard I'd like to see current version information right on the main page. With more frequent releases (which are great!) it's hard to keep track of what version I've already upgraded to.

As of 4.0.9, the version number is displayed in the Admin CP > System > Applications.

Would love to see it back on the main page for quick reference. Especially if new version "release notes" are now being displayed on the main page, would be nice to quickly compare to the current version the board is running.

ie:

Current version:

--- release notes ----
 

Would love to see it back on the main page for quick reference.

You have 2 plugins:

I just add version with each upgrade to the notes in the ACP.