[Docs] Document host release process from Apple Business

articles/apple-mdm-setup.md

@@ -242,6 +242,37 @@ How automatic enrollment profiles are assigned:
 
 ![Fleet-AB-workflow](https://fleetdm.com/images/articles/abm-assignment-workflow.jpg)
 
+### Release a host from AB
+
+> Available in Fleet Premium
+
+You can permanently release (disown) a host from Apple Business directly from Fleet. 
+This calls Apple's Disown Device API and removes the device from your AB account. 
+
+**This action cannot be undone.** Once released, the device can no longer be automatically 
+re-enrolled via AB. The host will remain enrolled in Fleet until an admin manually 
+unenrolls or wipes it.
+
+**Prerequisites:**
+- The host must be enrolled via AB (DEP)
+- You must be a global admin or team admin
+
+**To release a host from AB:**
+
+1. Navigate to the **Host details** page for the host.
+2. Select **Actions > Release from AB**.
+3. Confirm the action in the modal.
+
+**To release multiple hosts via API:**
+
+`POST /api/v1/fleet/hosts/release_ab`
+
+See the [REST API documentation](https://fleetdm.com/docs/rest-api/rest-api#release-host-from-ab) 
+for details.
+
+> **Note:** Releasing a host from AB does not unenroll it from Fleet or wipe it. 
+> Admins must manually unenroll or wipe the host after releasing.
+
 ### Re-enrolling AB hosts
 
 When an AB host re-enrolls in Fleet (e.g., after a wipe or OS reinstall), Fleet automatically:

articles/what-is-apple-business-a-complete-guide.md

@@ -42,6 +42,9 @@ AB has three core capabilities that work together to automate device provisionin
 
 Automated Device Enrollment (ADE) streamlines MDM enrollment by handling initial device setup through Apple's activation infrastructure.
 
+ADE enrollment ties a device to your AB account. If a device needs to be permanently removed from your organization's AB (for example, during asset disposal, resale, or transfer to another organization) your MDM can call Apple's Disown Device API to release it. In Fleet, admins can do this directly from the Host details page or via the REST API. Once disowned, the device will no longer automatically enroll through your 
+AB on reset. **This action is irreversible.**
+
 ### Volume purchasing and app distribution
 
 AB provides bulk app and content purchases with remote distribution that doesn't require employees to use personal Apple Accounts on-device. This gives you complete license management with remote deployment capabilities even if users or your organization has disabled the App Store on managed devices.