Android 7.1 Nougat, released in October 2016, represents a significant refinement of the Android platform, debuting alongside the original Google Pixel smartphones. While Android 7.0 laid the groundwork with features like split-screen multitasking, version 7.1 added the polish and advanced APIs that would define the modern Android experience.

Before 7.1, users had to rely on third-party apps with screen overlays to reduce blue light at night. Nougat 7.1 baked this feature directly into the system. It was a game-changer for eye comfort and sleep hygiene, allowing the screen to turn a warm amber hue automatically at sunset.

On non-Pixel devices, Night Light was often buried or missing entirely unless the manufacturer included it—fragmentation remained a problem.

While Android 7.0 Nougat was a massive overhaul, version 7.1 (API Level 25) was initially a Pixel-exclusive update before rolling out to the broader Nexus lineup as Android 7.1.1. It focused on bridging the gap between raw performance and a more intuitive user interface.

It introduced conveniences we now take for granted—Night Light, app shortcuts, and seamless updates. While it lacks the modern privacy features and notification management of today's Android, for 2016, it was a triumph.