Durable Links is a great feature introduced to SharePoint 2016.
Once we create a document, share the document url, move the document to another location, the links become invalid!
This is a common problem across IT as there will be bunch of document links created over the years & becoming invalid.
Note: Dropbox too had the problem earlier
SharePoint 2016 solves the problem using Durable Links.
Durable Links are created based on the Unique Document Id.
Durable Links helps Document Renaming, Document Relocating easier without breaking links.
(You can see the Document Id as the last parameter)
Broken Links never happens on Document moving
Library Restructuring is easier
Can rename files without worrying
Document ID Service
We need to activate Document ID Service from Site Collection Features to make Durable Links work.