The Office 2016 April 2017 updates and cumulative updates are now available, please see the links below:
https://support.microsoft.com/en-us/kb/4016803
Project 2016 April 2017 update:
https://support.microsoft.com/en-us/kb/3178708
SharePoint Server 2016 / Project Server 2016 April 2017 update:
https://support.microsoft.com/en-us/kb/3178721 & https://support.microsoft.com/en-us/kb/3178718
The Office 2013 April 2017 updates and cumulative updates are now available, please see the links below:
https://support.microsoft.com/en-us/kb/4016803
Project Server 2013 April 2017 CU Server Roll up package:
***No Server rollup package this month – install other SharePoint 2013 patches as required***
Project Server 2013 April 2017 update:
https://support.microsoft.com/en-us/kb/3191824
Project 2013 April 2017 update:
https://support.microsoft.com/en-us/kb/3178713
Also worth noting, if you haven’t done so already, install Service Pack 1 http://support2.microsoft.com/kb/2880556 first if installing the April 2017 CU on 2013.
As always, fully test these updates on a replica test environment before deploying to production.