Didn’t get a chance to register for Microsoft’s Build 2016 conference? As we previously reported, Microsoft is also holding a free mini-conference for developers on the Edge web browser, scheduled for April 4 in San Francisco, just a few days after Build.

Registration opened recently for the 2016 Microsoft Edge Web Summit (thanks, WindowsCentral, for the heads up), and seats will likely go fast. Here’s what Microsoft says you can expect from the one-day conference:

We’ll be presenting a full day of technical talks covering the EdgeHTML rendering engine, the open-source Chakra JavaScript engine, and developer tools. You’ll hear what’s next for the web platform that powers Windows 10, straight from the engineers who build it, and you’ll get an inside look at powerful techniques and new tools to make your life as a developer just a little bit easier.

Microsoft’s first Edge Web Summit last year gave developers a first look at the browser and the company’s plans for EdgeHTML. Though details of this year’s sessions haven’t yet been released, the registration website also promises “a few surprise guests” as well as an evening afterparty.

Click here to register for the Microsoft Edge Web Summit 2016.