Links not up yet, but you can already switch your plan <a href="https:&#x2F;&#x2F;github.com&#x2F;organizations&#x2F;your_org&#x2F;settings&#x2F;billing&#x2F;per_seat" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;organizations&#x2F;your_org&#x2F;settings&#x2F;billing&#x2F;p...</a> for unlimited private repositories at $25&#x2F;month for your first 5 users. $9&#x2F;month for each additional user. (Edit: Up now! Personal plans get upgraded to unlimited too!)