CRM 2016 - SDK - New Messages

 New messages available in CRM 2016 below:

Request class	Web API action	Description	More information
CloneAsPatchRequest	CloneAsPatch Action	Creates a solution patch from a managed or unmanaged solution.	Create patches to simplify solution updates
CloneAsSolutionRequest	CloneAsSolution Action	Creates a new copy of an unmanaged solution that contains the original solution plus all of its patches.	Create patches to simplify solution updates
CreateKnowledgeArticleTranslationRequest	CreateKnowledgeArticleTranslation Action	Creates a translation of a knowledge article record.	Create a knowledge article translation
CreateKnowledgeArticleVersionRequest	CreateKnowledgeArticleVersion Action	Creates a major or minor version of a knowledge article record.	Create major and minor versions of a knowledge article
DeleteAndPromoteRequest	DeleteAndPromote Action	Replaces a managed solution plus all of its patches.	Create patches to simplify solution updates
FullTextSearchKnowledgeArticleRequest	N/A	Performs a full-text search on knowledge articles in CRM using the specified search text.	Search knowledge articles using full-text search
IncrementKnowledgeArticleViewCountRequest	N/A	Increments the per day view count of a knowledge article record.	Increment knowledge article view count
SetProcessRequest	SetProcess Action	Sets the process that associates with a given target entity.
UpdateSolutionComponentRequest	UpdateSolutionComponent Action	Updates a component in an unmanaged solution.	Package and distribute extensions using solutions

SRC URL:

https://msdn.microsoft.com/en-us/library/gg309589.aspx

Hope it helps.