Hi TB303,
Upgrades like common updates, only when the WSUS server admin approve the upgrade, can WSUS clients detect and download the upgrade file, so we don't need to worry about the WSUS clients upgrading to 1607 silently from WSUS server. It will under admins'
control;
>We have a lot of Windows 10 PCs on 1511 and they just get the 1511 cumulative updates, is it ok for them to stay on this version and just get the updates for that version?
It's OK to stay on 1511, while it's recommended to upgrade to 1607 for better service (and it's win10 1703 times).
Best Regards,
Anne
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