How to determine Flux version for InfluxDB 1.8.x?

InfluxDB 1
1

I try to determine the Flux version for an InfluxDB V1.8.10 installation.
When I try in chronograf explore in Flux mode

import "runtime"
runtime.version()

I get an error

error calling function "version": build info is not present

So the function is apparently available, but the implementation doesn’t have access to the relevant information.

So question: How to determine the Flux version for an InfluxDB V1.8.* instance ?

2

I have the same question/problem. Is it not possible to determine the version or why is there no answer here?