Do VMware tools require upgrade and updated version before cross vCenter migration ESXi 6.0 to ESX 7

[vmk2014]

Hi All,

We are planning to migrate the VM's from vSphere/ESXi (vBlock) host 6.0 to vSphere/ESXi 7.0 u1 (VxRail), just want to know that any prerequisite is there for VMware tools version prior to migration ? We are planning to use Fling tools for cross vCenter migration. Any help will much be appreciated.

Thanks

vmk