vSphere 5.5 support extended

Hi

Saw this thread https://www-secure.symantec.com/connect/forums/vsphere-55-support and i'm not sure what that means...

1. Does Netbackup not support vSphere 5.5 (vCenter 5.5 and ESXi 5.5) at all ?

2. Does Netbackup not support vCenter 5.5 ?

3. Does Netbackup not support Esxi 5.5 - Meaning that a higher version of vCenter 5.5 is okay ?

And can we get i time frame? Need to upgrade out vSphere 5.x version with more than 3000+ VM and Netbackup is this only problem!

Thx