Redirect URLs Are Shorter and More Informative
Where: This change applies to Lightning Experience in Contact Manager, Group, Essentials, Professional, Enterprise, Performance, Unlimited, and Developer editions.
Why: The old syntax redirect URL that you got with links in Chatter notification emails was long and provided no useful information about the feed item.
https://domain.com/one/one.app#eyJjb21wb25lbnREZWYiOiXczmb3 JjZUNoYXR0ZXI6ZL0GVza3RvcENoYXR0ZXIiLCJhdHRyaWJ1dGVzI jp7ImZlZWRFbGVtZW50SWQiOiIwRDVCMDAwMDAwbFQ5d0ci
The new syntax is /lightning/<feedItemId>/view. It’s shorter, and it includes the ever-useful feed item ID.