Adobe Photoshop legacy versions

ON THIS PAGE: https://helpx.adobe.com/photoshop/kb/legacy-version-updates.html

What was the latest update for legacy versions?
How do I check for and install the updates?
How do I verify what update I have installed for Photoshop?
How do I verify which update I have installed for the Camera Raw plug-in?
What if I update Adobe Camera Raw and Photoshop still doesn’t recognize my camera?
Photoshop prior version updates
Camera Raw prior version installers and updates