Responsibility for the Jumper-T8SG-manual

I do find the manual for the Jumper T8SG under www.jumper.xyz :

T8SG,_T8SG_V2_&_T8SG_V2_Plus_User_Manual_en_SW5.0.pdf

I do not find this manual under www.deviationtx.com . Is this true?

Who is responsible for this manual?
Who will make corrections in the manual?

Yes. I know. But this does not answer my question.
The manual for the 7e does not contain information e.g. about voices and voice selection; the manual for the T8SG does.
I do find the firmware of the T8SG on www.deviationtx.com , but I do not find the appropriate manual.
That‘ s odd, isn‘ t it?

By the way: I like the software of deviation and am using it for years. And I admire the work of the programming people and their way of communicating their products under www.deviationtx.com .

I've been wondering the same.. where to find my manual for the Jumper t8sg v3... I even emailed Jumper about it, no answer.

Thanks for this. That's what I was looking for!