Update Changelogs “4-4-1-2019-09-23”

Author: hvhvhcgv

src/content/changelog/4-4-1-2019-09-23.md

@@ -36,7 +36,7 @@ Some heuristics for which heading to put API reference updates under:
 - Added Firewalls beta endpoint [POST /firewalls]() which accepts a firewall setup and creates a new firewall. **Note**: this endpoint is prepended with **`/v4beta`** instead of `/v4`.
 
 ### Changed
-
+- Initiating a migration [POST /linode/instances/{linodeId}/migrate]() now generates a notification, available at [GET /account/notifications](), that includes how many Linodes are in the queue ahead of this Linode. This position is dynamically generated, so if the notification is retrieved at an interval, it is always up-to-date.
 
 ### Fixed
 - Previously, in the edge case where overwrite was set to true when restoring from backup (POST/linode/instances/{linodeId}/backups/{backupId}/restore), some disks were not being properly deleted. Additionally, the check to determine if there is enough disk size has been changed from checking the Linode’s `free_space` against the backup object’s `total_size` which is a computed value. This computed value is now being computed by summing the MinRestoreSize of each disk in the backup.