I just updated my ConfigMgr environment to 1511 (CurrentBranch) and while the installation itself went safe and sound, following is to be noted:
- The new Software Center never got installed properly with a shortcut in the start menu (%ProgramData%\Microsoft\Windows\Start Menu\Programs\Microsoft System Center\Configuration Manager)
I had to re-enable the setting in my Client Settings (Disable the feature, OK, Enable the feature, OK and do another policy refresh)
- None of the new Windows 10 1511 software updates was synced into SCCM. I checked WSUS manually, and the classification Upgrades was not selected regardless of the Upgrades being indeed selected in SCCM. To solve this, I had to de-select all classifications in SCCM and select them again on the Software Update point. When I checked the chosen classifications in WSUS again, the proper selections was inherited from SCCM as expected and the next sync downloaded the Windows 10 Upgrades.