---
schema_version: "1"
id: b6351f4ef58b81165dcdb1c587e65370afd35ecb16c09c244b14a7c54053a575
title: Apex Deprecation Effects for Subscribers
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/packaging-effects-subscribers.md
canonical_url: https://developer.salesforce.com/docs/platform/pkg1-dev/guide/packaging-effects-subscribers.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: 8e87ac4b6a81999997876b566467702117804b70c7c827adfcefd32c3d3c7b1c
products:
  - First-Generation Managed Packaging Developer Guide
  - merged-docs
---

# Apex Deprecation Effects for Subscribers

Explore how deprecation of an Apex method impacts subscribers that install your managed package.

The table shows a typical sequence of actions by a package developer in the first column and actions by a subscriber in the second column. Each row in the table denotes either a package developer or subscriber action.

| Package Developer Action                                                               | Subscriber Action                                                                                                                                                                                      | Notes                                                                                                                                                                                           |
| -------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Create a global Apex class, `PackageDevClass`, containing a global method `m1`.        |                                                                                                                                                                                                        |                                                                                                                                                                                                 |
| Upload as Managed - Released version 1.0 of a package that contains `PackageDevClass`. |                                                                                                                                                                                                        |                                                                                                                                                                                                 |
|                                                                                        | Install version 1.0 of the package.                                                                                                                                                                    | The Version Number for the package is 1.0. The First Installed Version Number is 1.0.                                                                                                           |
|                                                                                        | Create an Apex class, `SubscriberClass`, that references `m1` in `PackageDevClass`.                                                                                                                    |                                                                                                                                                                                                 |
| Deprecate `m1` and create a new method, `m2`.                                          |                                                                                                                                                                                                        |                                                                                                                                                                                                 |
| Upload as Managed - Released version 2.0 of the package.                               |                                                                                                                                                                                                        |                                                                                                                                                                                                 |
|                                                                                        | Install version 2.0 of the package.                                                                                                                                                                    | The Version Number for the package is 2.0. The First Installed Version Number is still 1.0. `SubscriberClass` still references version 1.0 of the package and continues to function, as before. |
|                                                                                        | Edit the version settings for `SubscriberClass` to reference version 2.0 of the package. Save the class. Note an error message indicating that `m1` can’t be referenced in version 2.0 of the package. |                                                                                                                                                                                                 |
|                                                                                        | Change `SubscriberClass` to reference `m2` instead of `m1`. Successfully save the class.                                                                                                               |                                                                                                                                                                                                 |