The TV dashboard app works on webOS 2, and scales to fill 4K screens.
Details
• TV dashboard on webOS 2: the dashboard app now carries an ES5 Promise polyfill so its metrics and tabs render on WebKit 538.2, where the missing constructor previously left the screen on --:-- (#746, #872).
• 4K display scaling: the Homebrew Channel launcher app now declares 1080p resolution in its appinfo, and existing installations are updated on startup, so webOS upscales the dashboard canvas to full screen on 4K TVs rather than drawing it in the top-left quadrant (#746, #872).