The Samsung Captivate Glide is a Galaxy S II derivative on AT&T. Back in April when Samsung announced the list of carrier devices that would be receiving Android 4.0, the Glide made the cut. Since then there have been a few leaks, with not much being said from Samsung regarding an official release date.
After 5 months, Samsung has finally released the update via KIES. In order to apply the update you will of course need to be on a stock, unrooted UCKI3 or UCKL1 ROM. The official information and instructions from Samsung can be found here.
While there is currently not a rooted version available from the talented developers in the Captivate Glide section, rest assured that it is coming soon. Until then, if you require a rooted ROM, then you should stick with what you have._________