If you haven’t already noticed, there are a few additional options in SharePoint admin center settings. You get there by going to the Office 365 admin centre.
On the left hand side at the bottom expand the Admin centers option like so:
From the menu that appears on the left select Settings.
A couple options you may wish to check and set here.
Recommended to ensure that the Sync client for SharePoint is set to Start the new client so you ensure users get the most update to date version of the OneDrive for Business sync client when syncing data to their local machines.
If you had a tenant that included the old SharePoint external public web site you’ll see that you have the option to extend it’s life until the 31st of March 2018. I’m happy to have my one delete so I’m leaving the setting as is.
Interestingly, I can’t change the Global Experience Version Settings option and it is set to Prevent creation of new site collections. I assume this means that when you create a Site Collection now you only get the ‘modern’ experience. Can’t be changed for me so nothing I can do here but it may become available down the track.
Today, you typically get an Office 365 Group when you create a Team Site but you’ll see here that you can control that option if you want. You can also determine where the new sites are created.
The Access app is being retired, here you can control whether users can still use it to create new Access apps in your site collections.
There are lots of additional options on the Settings page so make any changes you want and then select Save at the bottom of the page to updates these for your environment. Also, don’t forget to come back regularly and check to see whether any new options have been added.