Update References to Legacy Host Names (Release Update)

Prevent disruption for your customers and end users when the temporary redirection of legacy (non-enhanced) Salesforce host names ends. With this release update, those redirections end in all orgs. First available in Spring ’25, this update is enforced in Spring ’26.

Where: This change applies to Lightning Experience and Salesforce Classic (not available in all orgs) in Group, Essentials, Professional, Enterprise, Performance, Unlimited, and Developer editions.

When: Salesforce enforces this release update in Spring ’26. To get the major-release upgrade date for your instance, go to Trust Status, search for your My Domain name or instance, and then click the maintenance tab.

Note The task that disables legacy redirections is completed gradually after the major release. Usually that task finishes within a few hours after you get the release, but it can take up to 24 hours. To control the timing of when those redirections stop in your org, disable legacy host name redirections from the My Domain page in Setup.

How: To review this update, from Setup, in the Quick Find box, enter Release Updates, and then select Release Updates. For Update References to Legacy Host Names, follow the testing and activation steps.