Create More Complex Visualforce Pages with Increased View State Limit
The maximum view state size limit was increased from 135KB to 170KB. Now, you can build and load more complex Visualforce pages, as long as they don’t go over the increased limit. The view state is a hidden form that keeps track of the state of components, controller, and field values. Large view states require more processing time.
Where: This change applies to Lightning Experience, Salesforce Classic, and all versions of the Salesforce app in Contact Manager, Group, Professional, Enterprise, Performance, Unlimited, and Developer editions.