If you plan to configure a new branded login page for your AppExchange solution’s Trialforce Source Org (TSO), complete the configuration before Summer ’26. With that release, existing branded login pages continue to work but you can’t configure new branded login pages.
Where: This change applies to Salesforce Classic in Developer Edition.
When: Salesforce starts deploying the Summer ’26 release to Developer Edition orgs on May 15, 2026. To get the major-release upgrade date for your org, go to Trust Status, search for your My Domain name or instance, and then click the Maintenance tab.
Why: Salesforce plans to retire the .cloudforce.com host name that serves Trialforce branded login pages. Check future release notes for updates about branded login pages for Trialforce Source Orgs.