Second-Generation Managed Packaging Developer Guide

Second-Generation Managed Packages
What’s a Second-Generation Managed Package?
Set Up Your Development Environment
Before You Create Second-Generation Managed Packages
Scratch Orgs and Package Development
Workflow for Second-Generation Managed Packages
Components Available in Second-Generation Managed Packages
Behavior of Specific Metadata in Second-Generation Managed Packages
Develop Second-Generation Managed Packages
Install and Uninstall Second-Generation Managed Packages
Prepare to Distribute Your Second-Generation Managed Package
Push a Package Upgrade for Second-Generation Managed Packages
Advanced Features for Second-Generation Managed Packages
Best Practices for Second-Generation Managed Packages
Manage Licenses for Managed Packages
Manage Features in Second-Generation Managed Packages
Get Started with AgentExchange App Analytics
Gaps Between First-Generation and Second-Generation Managed Packaging
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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.

Gaps Between First-Generation and Second-Generation Managed Packaging

The following functionality is supported in first-generation managed packaging, and not yet supported in second-generation managed packaging. We’re working to address these feature gaps.
  • Package versions can’t be deprecated.
  • Apex VersionProvider isn’t supported.
  • A default language for labels in packages can’t be specified.

See the Metadata Coverage Report, for the latest information on supported metadata types.