I received the following information from Swiss Honor support:
Dear Mr. K***r,
thank you very much for contacting Honor on this matter, I am happy to be of assistance.
Currently all smartphone manufacturer are in the process to adapt Oreo...
thank you my friend for help, I do not have much time now.:good:
Není zač, dělám to pro komunitu ;)
You're welcome, I'm doing it for the community ;)
OTA update B389 is approved to install.
In Firmware Finder is new ROM with build number 387.
In Firmware Finder is new ROM with build number 386.