which installers are needed and actually new?

Hello guys
just upgraded to PT HD12 and confused about which installers I actually need...
So far I've installed everything that had a number 12 in its name (I think that's 30 installers).

Among the 30 there were these two I installed:

First_AIR_Effects_Bundle_12.0_Mac
First_AIR_Instruments_Bundle_12.0_Mac

Which leaves me wondering: do I need the following?

AIR_Creative_Collection_Virtual_Instruments_11.3.1 _Mac
AIR_Creative_Collection_Effects_11.3.1_Mac

Are those 11 versions of the same thing I just installed (above) or are there other plugins/effects/instruments not present in the 12 version? And if I install them will the add to the v12 or overwrite the v12 effects/instruments?
The sizes seem very different.

Also there is this:
Avid_Virtual_Instruments_10_3_Installer_77520

Do I need that in Pro Tools 12 or is that a PT10 only installer?

Thanks

which installers are needed and actually new?