Automatic or Manual upgrade of vCenter Agents?

I uninstalled and am re-installing vCenter on a VM in an ESXi 5.5 environment.  The re-install is using a higher version of vCenter than was previously installed and I am being asked whether to upgrade the vCenter Agents on the host servers using the Automatic or Manual option.

I want to choose Automatic, but I thought I'd better ask the experts first, just in case there are some issues.

Thanks.
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gateguardAsked:
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David Paris VicenteSystems and Comunications  Administrator Commented:
Hi gateguard,


you can use the automatic option, it´s perfectly safe this will not reboot Hosts or VM´s. Hosts will be disconnected from vcenter for several seconds because the agent must stop the old one and restart the update agent.

Regards
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Just select Automatic!

No harm will come to any of the hosted VMs.
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gateguardAuthor Commented:
Thanks!
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