While Apple is holding its devices event today, Microsoft is releasing a new Windows 10 Insider Preview. Build 18237 is now available for the Skip Ahead subset of the Fast ring.

The build is a preview for the feature update that will follow the October 2018 Update, which is still in testing in the Fast ring. After version 1809 ships, you'll start seeing this build in the lower rings.

It's still pretty light on new features, but one thing that's new today is that there's Fluent Design on the Windows sign-in screen. Here's the full changelog:

Bringing acrylic to the Windows sign-in screen With today’s flight we’re adding acrylic, a type of brush from the Fluent Design System, to the sign-in screen background. The translucent texture of this transient surface helps you focus on the sign-in task by moving the actionable controls up in the visual hierarchy while maintaining their accessibility. Other Updates for Insiders Microsoft Apps on Android gets rebranded as Your Phone Companion app This week, we are bringing our apps closer together – Your Phone app on PC now links you to Your Phone Companion app on your Android phone. See the resemblance? Companions? Yea thought you’d like that! We heard your feedback on having both apps share a stronger name game. If you’ve previously installed Microsoft Apps on your Android phone, when the app auto-updates, you’ll see a fresh set of screens that maintain the mobile app’s visual connection to Your Phone app on PC. Loved the fact that the mobile app used to surface up other apps by the same maker, Microsoft? No fear, it’s still there. Tap on ‘Top Microsoft Apps’ to get 20 quick recommendations. Or click on the left menu button, and browse through mobile apps from Microsoft, organized by app categories. Not sure why you need this goodness on your Android phone? Check out Your Phone app on PC. Did we mention you can text from your PC? Try it out and let @VishnuNath know what you think. We can’t wait to hear from you. Love it, like it, or have feedback in any form – share it! Android 7.0+ are compatible with Your Phone app. For PCs tied to the China region, Your Phone app services will be enabled in the future. We are still finetuning the app, so if you are looking for support, check out workarounds in the FAQ.

Again, you can expect to see more new features once the development of the feature update is a bit more mainstream. In fact, Microsoft might even announce some upcoming features at its Ignite 2018 event later on this month.