Disclaimer: Please be aware features listed here are mostly not available from any InfluxDB at publishing time, when using InfluxDB 1.7.x GA-builds, users usually will have to wait for a while until new Flux releases will be rolled into regular InfluxDB releases. influxdb/CHANGELOG.md at 1.7 · influxdata/influxdb · GitHub is the right place to monitor this.
After switching from InfluxQL to Flux during the InfluxDB 1.x to 2.x transition, it looks like the future of Flux is not clear wrt. the transition to InfluxDB 3.x. Thanks for sharing, @proddata.