Overview
- Xiaomi, which began the rollout on November 3, 2026, pushed HyperOS 4 to a first wave of Xiaomi, Redmi and POCO models that includes the Xiaomi 17/17T series, Xiaomi 15 and the Xiaomi Pad 8 family.
- Xiaomi has published a device-by-device schedule that puts a second wave in mid-November and broader availability, including older and budget models, through December; users should check Settings for the update and back up data before installing.
- HyperOS 4 brings a major visual redesign described as Liquid Glass or Soft Light Glass, expanded lock‑screen and home‑screen customization, larger clock widgets, and improved floating-window and orientation handling on tablets.
- Xiaomi says the update includes an AI-driven background optimizer that can speed app launches by up to about 20% after it adapts to use, and it adds Super XiaoAi 2.0 (MiMo LLM) for photo search, schedule help, smart‑home control and on‑screen product ID—claims that may vary in real use.
- The staged, region‑by‑region rollout aims to catch serious bugs before wide exposure, extends OS support to multi‑year devices (examples back to 2022), and signals a wider shift among OEMs toward Android 17 and built‑in AI on phones.