Earlier this week, Microsoft released Windows 10 for PCs Insider Preview build 15002 to the Fast ring, promising ISOs later this week. Today, those ISO images are now live.
The company is deviating from its traditional practices with this one, as the build was never released to the Slow ring. In fact, there's even a new build in the Fast ring, 15007.
Build 15002 contains quite a few new features in just about every area of Windows. There are a ton of new settings, such as the ability to adjust blue light, a new category for apps, the ability to adjust your screen resolution from display settings (rather than Control Panel), and more.
There are also Edge improvements, including the ability to toggle into a mode that shows a preview of all open tabs. You can hide tabs as well, and then selectively choose which ones to show again. Perhaps most importantly, the browser will block Flash content by default, prompting the user to decide if they want to allow it once or always.