I just upgraded and have spent a couple of hours scratching my head as to why the patch generation no longer seems to work as the previous version.
Notably:
1) Triggering patch generation was overriding my screen scaling / positioning setup
2) Patch generator was much slower to display, with an HDMI mode switch happening
3) The uploaded LUT was no longer in circuit for the patches, despite me being set to the correct memory with the correct CMS, and being able to see the effect of the LUT on the screen in real video content.
Bringing up the menu showed that despite being in the correct Memory, the CMS, Style and Resolution were being overridden.
It looks like between these versions the patch behaviour has changed from "Adjustable" to "Adj w/Mode", which means that you must now do Menu -> Other -> Test Pattern -> Test Mode -> and set the desired output mode, CMS and style for test mode.
In my case CMS 0 and Style 0 were set for this option, which happen to be an empty CMS and default style, hence the effect above.
I've noticed though that even setting the Test mode to the same as the current mode doesn't do exactly the same thing. In my case I have the screen shrunk and shifted to the bottom. Under the previous version the test image worked fine - I had black in the unused areas at the top. Now I get dark grey bar in the unused area of screen. I guess this maybe a Lumagen quirk.
The current behaviour is at odds with the doc, and is annoying and will undoubtedly lead to mistakes and head scratching (it would be even worse if it was loading a LUT which was almost right - in my case it was obviously "broken"). Though I guess this might have been done to fix something else (I saw an ABL patch fix went in). I guess either the doc or the behaviour is now incorrect...
http://www.lightillusion.com/lumagen_manual.html"When connected to LightSpace, the Radiance box is set to
'Adjust' mode, so any LUT active with the Radiance will be applied to the patches generated. This enables any calibration LUT to be verified by re-profiling through the LUT when loaded within the Radiance box."