However, recent developments suggest that Xiaomi has had a change of heart. The leaked screenshot of the "About" screen suggests that MIOS is currently in the alpha stage of development, with the version number starting from scratch. This implies that Xiaomi may not have had a ready solution until recently - based on the build number, it was available on November 5, 2022.
While the details of MIOS remain unknown, if it is indeed in development, it is likely to be a fork of Android, following the example of Huawei's HarmonyOS. The design and features are expected to be similar to those of the standard MIUI, but it is unclear how much Xiaomi will differentiate its operating system from Android. More information is expected to be released soon, so stay tuned for further updates.