If you’re considering upgrading or using existing Windows 2008 (any Service pack) Servers as Pull Distribution Points, make sure the’re 64-bit, and not 32-bit. If you do, they will not be able to pull large files (over 4 GB) from their assigned source Distribution Points. All other files will Transfer without issue.
If you’ve been administering or enrolling tenants for Office 365, you’ve dealt with Licenses.
In Office 365 (or Azure and Intune!), various licensing plans are available and can be upgraded or downgraded at will quite flexibly.
However, the user interface for this is extremely limited when you start working with large numbers of users or start working with non O365 specific licenses such as EMS and there is no place or method to keep an amdministration or rulebase of who should have what license.