The SharePoint 2013 March 2017 Cumulative Updates have been released:
SharePoint Foundation: https://support.microsoft.com/en-us/help/3172456
SharePoint Server 2013: https://support.microsoft.com/en-us/help/3172497
Project Server 2013: https://support.microsoft.com/en-us/help/3172462
Office Web Apps 2013: https://support.microsoft.com/en-us/help/3172457
Office Updates: https://support.microsoft.com/en-us/help/4013886/march-14-2017-update-for-microsoft-office
Consider using the SharePoint Patch Cmdlets available at SharePoint Updates for your farm!
