Exclude Subscriber Orgs from a Push Upgrade

If you push upgrades to your Salesforce managed package, you can now specify a list of subscriber orgs to exclude from any push upgrades. If you also publish the upgrade for subscribers, the excluded orgs can continue to pull the upgrade. This change applies to both Lightning Experience and Salesforce Classic.
Available in: Developer Edition

On the Package Details page, enter the org IDs, separated by a comma, in the Push Upgrade Exclusion List. The next time you push an upgrade for your managed package, the specified org IDs are excluded.