There’s an updated (April 2019) Dynamics 365 Business Central Licensing Guide. The most notable change is confirmation that Business Central Essentials and Premium licences include all the functionality of PowerApps Plan 2, and there’s a change log on page 10 detailing other adjustments.
Find this guide here: http://bit.ly/MSLicensingGuides.
Microsoft Bookings starts rolling out worldwide to customers who have Office 365 Business Premium subscriptions. There’s an app for iOS now and one for Android shortly, and customers who have Office 365 E3 or E5 subscriptions are likely to get access to Microsoft Bookings in the future. Find the Microsoft announcement here: http://bit.ly/2n40mGV.