---
schema_version: "1"
id: ccac8430239e6a6ce1577df1c23607037bf50b91e257bd664dc59dc674b2120d
title: Domains
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/260-0-0/rn_security_domains.md
canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_security_domains.htm&release=260&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 154051537b74f2d690a7ec715a35bc69e2071a47f585d661083e1029f7ae7d47
description: Redirections end for legacy host names, including instanced host names in API calls. And if a third party serves your custom domain, update the target host name.
products:
  - Cross Cloud Packages Solutions
release: "260"
---
# Domains

Redirections end for legacy host names, including instanced host names in API calls. And if a third party serves your custom domain, update the target host name.

- **[Update References to Legacy Host Names (Release Update)](https://help.salesforce.com/s/articleView?id=release-notes.rn_security_domains_update_legacy_ru.htm&release=260&type=5)**  
    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.
- **[Replace Instanced URLs in API Traffic](https://help.salesforce.com/s/articleView?id=release-notes.rn_security_domains_instanced_api.htm&release=260&type=5)**  
    To prevent disruption after infrastructure updates that change your instance name, replace instanced URLs in API traffic with your org’s My Domain login URL. Support for instanced URLs in API traffic ends in Winter ’27.
- **[Switch to a Stable Target Host Name for Your Custom Domain](https://help.salesforce.com/s/articleView?id=release-notes.rn_security_domains_target_host_name.htm&release=260&type=5)**  
    If a third-party service or content delivery network (CDN) serves your custom domain, simplify your maintenance. Work with your third-party provider to change the target host name to your org’s My Domain login URL.
- **[A Warning Was Added for Potential Custom Domain Disruption](https://help.salesforce.com/s/articleView?id=release-notes.rn_security_domains_custom_edge_warning.htm&release=260&type=5)**  
    If your custom domain can experience disruption when you move to Salesforce Edge Network, you see a warning on the My Domain Setup page.
- **[Regional Edge Routing Label Was Changed](https://help.salesforce.com/s/articleView?id=release-notes.rn_security_domains_regional_edge_label.htm&release=260&type=5)**  
    To help you select a routing method for Salesforce Edge Network, the label for the regional method now includes your region name. The functionality and availability of this option are unchanged.