Even though Microsoft didn’t include Project Spartan web browser in the Windows 10 Build 10041, it includes the latest updates to Project Spartan’s new rendering engine. It includes new features and improvements to existing features. Some of these include:
- Improved ECMAScript 6 compatibility (up to 74% in the Kangax ES6 compatibility test in this preview)
- Expanded support for DOM L3 XPath
- Support for WAI-ARIA Landmark Roles
- Support for CSS Conditional Rules (@Supports)
- Support for the Web Audio API
- Support for CSS Gradient Midpoints (aka color hints)
- Improved FeBlend mode support
- Unprefixed support for the Fullscreen API
- Support for the Touch Events API and related interoperability improvements. Touch Events are enabled when a touchscreen is present, and can be enabled under about:flags.
In addition, you may notice some features partially implemented and available for testing in Internet Explorer under about:flags. These features are under active development and will continue to evolve in future preview builds.
- Support for the HTML5 Date-Related Inputs API. This is off by default and can be enabled in about:flags. Improved accessibility is coming in a future build.
- Partial support for CSS Transitions & Animations on SVG elements
- A toggle for the CSS Filters API is available in about:flags but the feature is not yet implemented in this build.