So, do i understand this right? Previously it was enough to just select Windows 10 (without any other version or anything) to get all past, current and future updates (including feature updates if Upgrades category is selected). This is still enough to get the 1903 feature update itself (i already see it synced in my test WSUS box in Upgrades view). But after one upgrades machines to 1903, future CU, Security and other updates will only be synced if Windows 10 1903 and later branch is selected? I know you are reasoning this with UUP changes. But i wonder what other benefits it could have. Say now, when general Windows 10 branch is selected, i get updates for all supported versions, though we only use the latest one. So i have to decline a lot of updates. Maybe in future we can avoid this by only selecting branches with versions we use? Say i would have 1903 and 1909 branches selected, so WSUS will only sync security and CU updates for these versions? Or will we have to select the general Windows 10 branch anyway and thus will get all not relevant updates with it?