After the EMUI 9, the new EMUI 9,1 to bring GPU Turbo 3.0 with Ark compiler, EROFS file system management and more. This time, Huawei Malaysia has announces upgrade list for Huawei devices along with its estimated time.
The new Ark Compiler is expected to increase system fluidity to 24%, 44% more responsiveness and 60% increase in app fluidity (Sina Lite). 
The EROFS file system can saves up to 2GB space with 20% better in document read speed. It also improves security as the file system is now in read only state.
Learn more about EMUI 9.1 at Huawei official site.
