Today, Microsoft announced its fourth Connect(); developer event, which is to be held from November 15 - 17. The company says that developers will be able to discover what's next "across Microsoft and open source technologies". There will also be over 75 on-demand sessions planned for the event.
Connect(); 2017 is to be held in New York City, although you'll be able to livestream it. It's similar to last year, where the event was also in NYC and the dates were November 16 and 17. This year's is three days though, so presumably, Microsoft has a bit more in store for developers that attend or tune in.
Obviously, Microsoft's Build conference, which was held in the spring of this year, is the company's premier developer event, but it's entirely possible that the firm might have some interesting news to share. It will take place almost a month after the release of the Fall Creators Update, so there might be some word on API changes coming in Redstone 4.
If you want to learn more about the event, you can do that here.