Hello [name]! Thanks for joining the GMC. Before making any posts in the Tech Support forum, can we suggest you read the forum rules? These are simple guidelines that we ask you to follow so that you can get the best help possible for your issue.
Yes, it is still supported, but you can't buy it directly anymore (although you gain a GMS 1.4 license if you buy GMS 2). Take a look at this blog post for more details.