Thank you all for your help.
I contacted Dlink Technical support team on this link: http://tsd.dlink.com.tw/contact2008.asp
I received the following response.
Hi Sir, Our relavant personnel who is in charging of this matter, and the GPL may release about 2 month later. Please go into download site when that time come. D-Link HQ TSD
I'll wait till that time and will check the download site
