Develop apps to customize your organization using Visualforce. Use Visualforce to build pages and apps in Lightning Experience, the Salesforce1 mobile app, Salesforce Classic, and Communities. Visualforce language and feature improvements make app development easier. Enhancements in this release are focused on Lightning Experience.
Available in: Contact Manager, Group, Professional, Enterprise, Performance, Unlimited, and Developer Editions

These release notes explain new features in this release.

For further information on features affected by these enhancements, refer to the Visualforce Developer’s Guide.