Salesforce DX Developer Guide

How Salesforce Developer Experience Changes the Way You Work
Project Setup
Authorization
Scratch Orgs
Development
Build and Release Your App
Develop Packages (Beta)
Salesforce DX Packaging
Types of Packaging Projects
Before You Create Second-Generation Packages
Workflow for Second-Generation Packages
Plan Second-Generation Packages
Configure Packages
Create a Package
Install a Package
Uninstall a Package
Continuous Integration
Troubleshoot Salesforce DX
Limitations for Salesforce DX
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Salesforce DX Packaging

Salesforce DX packaging (sometimes called second-generation packaging or 2GP) lets you create packages in a source-driven development environment. You can create and deploy packages in your own Salesforce org or to develop and distribute packages to your customers.
Use packaging to take advantage of these helpful features.
  • The Salesforce CLI provides commands for the entire application life cycle so you can work efficiently with your packages, scratch orgs, and development processes.
  • Options for enterprise customers to organize and deploy metadata to production orgs.
  • Multiple packages per namespace, so you can better organize your source and easily share Apex code. You can use public Apex classes across packages rather than global Apex classes.
  • Feature branch development and testing.
  • Completely API-driven functionality.
  • Packages that are built directly from the source.
  • Ease of development and distribution of dependent packages.