How do I stop unwanted information from being listed on the lock screen? No - This is not about "sensitive information".

I just upgraded to Lollipop and my lock screen display was changed by the upgrade.

On the lock screen I now see notifications for 


text messages; this is good
emails; this is good
application updates and system notifications; this is bad and needs to go away


I've looked in the Notifications settings and tested the "while locked" settings but this does not achieve what I want. 

How do I stop unwanted information like "3 updates available" from appearing on the lock screen?
If you don't want them at all you can go to settings &gt; sound &amp; notification &gt; app notifications then turn of the notifications you don't want. That would be the best way I know and use.