You can create additional release channels if you need more, or delete them when they are no longer needed.
New release channels are listed at the bottom of existing release channels. When creating or deleting a release channel, consider the following:
Release channel names are permanent and cannot be changed. You can, however, delete a release channel and create a new one with the name you want.
When you delete a release channel, all entitlements for that release channel will be deleted as well. For instance, any users with access to that channel will have their access revoked.
Release channels cannot be reordered. They appear in the list in the order you create them.