Hello and sorry that this was not previously responded to!!
You get access to updates for one year from purchase. You can login, go to My Orders, and download it there. It's always the current package. After one year, the download access goes away. At that point, you simply purchase a new license giving you another year of access.
Nathan is no longer affiliated with DTH since the recent acquisition. You can connect with him and get any type of Joomla website help at
www.JoomlaEmployee.com
.