Apex Developer Guide

Apex Developer Guide
Release Notes
Getting Started with Apex
Writing Apex
Running Apex
Debugging, Testing, and Deploying Apex
Debugging Apex
Testing Apex
Deploying Apex
Apex in Managed Packages
Managed Package Types
Develop and Distribute Apex for Managed Packages
Use Apex Referenced by Managed Packages
Safely Upgrade Packages from Developer and Subscriber Perspectives
Apex Reference
Appendices
PDF

Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

Apex in Managed Packages

Learn how to develop, distribute, and use managed Apex. Apex in managed packages can behave differently than Apex in unmanaged packages or Apex deployed directly to an org. Managed package developers and subscribers must understand these differences so that they can safely evolve their packages and integrations.