Zidoo has released differential packages on their forum for their model Z9X 8K.
This is a pre-release beta for Z9X 8K for those who want to try it.
Zidoo Forum
Zidoo Z9X 8K Firmware Download – Z9X-8K v1.2.22(_G) to v1.2.25(_G)
Zidoo Z9X 8K v1.2.22(_G) to v1.2.25(_G) diff packages (Forum Test Version)