---
schema_version: "1"
id: fa4011ec3586fbdef5ed52757233630cec66233e6ce28d8c1f75b31cd144c0e2
title: Move to 2GP Package Development
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/platform-pkg-exchange/managed_packaging/guides/first-generation/migration-move-to-2gp.md
canonical_url: https://developer.salesforce.com/docs/platform/pkg1-dev/guide/migration-move-to-2gp.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: b88742762b8ba2ee71908939b7b51a9d27df070877eae51884bb6103adf409f2
products:
  - First-Generation Managed Packaging Developer Guide
  - merged-docs
---

# Move to 2GP Package Development

After you thoroughly test converted packages and migrations, complete your move to 2GP development.

- **[Test Converted Packages and Subscriber Migrations](https://developer.salesforce.com/docs/platform/pkg1-dev/guide/migration-test-conversions-migrations.md)**


    When you complete your move to 2GP development, you can no longer create any new major or minor 1GP versions of that package. Before you make this transition, it’s critical that you thoroughly test packages converted to 2GP and the migration of subscribers to 2GP.

- **[Complete the Move to 2GP Package Development](https://developer.salesforce.com/docs/platform/pkg1-dev/guide/migration-move-to-2gp-workflow.md)**


    To fully transition to 2GP package development, you retrieve the source files for your package’s latest converted version. Then, you confirm in Setup for your packaging org that you’re ready to develop and distribute your package solely using 2GP packaging.