SharePoint Code Snippets

There is no more release on the SharePoint Designer and Infopath. But Microsoft still support 2013 version till the lifetime of SharePoint 2016 (till 2026). "InfoPath 2013 and SharePoint Designer 2013 will be the last versions of those products. SharePoint Designer is not being re-released with SharePoint Server 2016, although we will continue to support custom workflows built with SharePoint Designer and hosted on SharePoint Server 2016 and Office 365. Support for InfoPath 2013 and SharePoint Designer 2013 will match the support lifecycle for SharePoint Server 2016, running until 2026."  For more info visit FAQ in below URL https://blogs.office.com/2016/01/20/sharepoint-server-2016-and-project-server-2016-release-candidate-available/