Length of license for Wordpress themes

I bought a WP theme on Themforest for $59 and tech support for that theme for $29.

I understand i need to renew support every 6 months (if I want to keep it) but how long is actual license of theme good for? Was the $59 a 1 time fee or do i need to pay another $59 in 1 year if I want to update the theme with any new releases they may have?


Lifetime license