Huawei has started pushing out a new update to its Mate 9 smartphone. Arriving as build number MHA-L29C185B172 and weighing in at 511MB, the update brings along performance and stability-related optimizations. The update is also said to improve touchscreen response as well as battery life. In case you missed, a Mate 9 update was pushed out earlier this month as well - it brought along several changes, including fix for an issue related to Google Voice. Via
Source: http://www.gsmarena.com/new_huawei_mate_9_update_optimizes_performance_and_stability-news-24278.php