How do I update my Sense 2?

[DotEthan]

I was told that I should update my Sense 2 to try to solve a battery drainage problem.  To start the update, I am supposed to "tap the Today tab".  Where is the Today tab?

Moderator Edit: Clarified subject

[LZeeW]

@DotEthan   If you are on your dashboard main page, then you are on your Today page.  Tap on your device/battery icon, then your Sense 2 tile.  Look for a pink update option and tap on it.

[DotEthan]

I must be on the wrong page altogether.  On the main page of my dashboard, I can't see a device/battery icon.  Is it possible that I am looking at an obsolete dashboard page?

[LZeeW]

@DotEthan   This Community Blog post shows images.