Huawei and Honor are reportedly distributing new versions of their respective UIs to various phones, most of which were released approximately 1 year ago. Most of these devices will be getting EMUI 9.1 as a result, although 2 of them (the Honor V20 and Magic 2) are eligible for Magic UI 2.1 as they are the Chinese variants of their product lines.
The remainder of the devices on the new Huawei update schedule are the Honor Play, 8X, 10, 10 Lite, V10, Huawei P20 Lite (2018), P30 Lite, Nova 3i and Y9 (2018). These phones will see the latest form of the OEM's GPU Turbo adaptation as a result.
Honor asserts that this feature promotes graphics performance in various specific titles while also conserving battery life. The panel of apps with which GPU Turbo 3.0 has reportedly been expanded to include Fortnite; Real Racing 3; FIFA Mobile and Minecraft.
In the case of the V20 and Magic 2, the new update will install their parent OEM's Extendable Read-Only File System (or EROFS). It allegedly confers up to 20% improvements in random-read performance, while reducing app-opening latency by up to 10%. The new update also adds an AI Vlog Editing feature (an answer to Google Photos' own auto-movie generation feature) to the camera apps of these Honor and Huawei phones.