Hello Rick,
I have not "released" version 6 - and will probably never do so.
Time is limited, I have been diagnosed with "disseminated cancer
in the bile duct, liver, and pancreas" and will spend my time with
something I think is more valuable. Have a look here:
youtube
I have seen phase noise as low as -136 dBc/Hz at 1 Hz offset on
a 10 MHz signal and -192 dBc/Hz at 700 kHz from a 10 MHz signal
at a power level of 120 mW (which means that the noise is well
above room temperature noise.) I will present those results
in nerds111 and it is far below what anyone has reported for
crystal oscillators before. The best I have ever seen is this:
https://bdstarpnt.com/en/product/cx910/
Today there are systems that derive a signal from frequency
division from optical sources. Here is the best commercially
available that I know of:
https://www.menlosystems.com/wp-content/uploads/MENLO_UMS-Compact_D-EN_03_2024_3w.pdf
They specify -140 dBc/Hz at 1 Hz offset for a 10 MHz signal.