On the Symfony Blog there's a sad announcement that they are having to cancel SymfonyLive Chicago for their 2016 event.

We are very sorry to inform you that we are canceling the SymfonyLive Chicago conference this October 13th and 14th.

After much pained reflection, we realize that we have no choice. Our venue requires a minimum number of attendees, a number from which we are too far, and we know that over the next two months, we cannot possibly meet the requirement.

We have never held a SymfonyLive conference in Chicago before and were hoping to extend the Symfony community’s reach to the mid-west. Unfortunately, it just won’t be possible this year. However, we are confident that with another year of work, we will be able to bring the SymfonyLive back to the United States and hope that you will still be interested in our common goals to keep improving the framework for the benefit of everyone!

They do note, however, that both SymfonyLive London and SymfonyLive Berlin are still on and registration is open for both.