Am a keen follower of Microsoft's SharePoint Blog and proud to provide this direct from the Microsoft Tech Community:
Latest monthly summary of SharePoint Development guidance for SharePoint Online and on-premises now available from the Office 365 Dev Blog. Check the latest news, samples and other guidance from this summary.
- SharePoint Dev Ecosystem / SharePoint PnP – December 2018 update – at SP Dev Blog
The above is kindly provided by the Microsoft Tech Community!