Many things happened.
by Jon Kalb
From the article:
CppCon 2019 was the first year in our new home at the Gaylord Rockies in Aurora, Colorado.
Long before I’d ever done it, I told people that I thought that moving a conference is almost as much work as starting one from scratch. Now that I have moved a conference, I’ve learned that started a conference from scratch is actually easier than moving that conference after it has been growing in one location for five years...