Hi
http://www.makeuseof.com/tag/fedora-15-bringing-latest-linux/
"It’s another great day in the world of Linux. Fedora 15 was finally
released two days ago, and this new release brings a massive amount of
changes compared to Fedora 14. In fact, there’s so many changes that a
lot of them can’t fit into this article. However, the major features
that have changed are too important to leave out, that impact users in a
very obvious way."
Rahul