My new pair came with 1.4.24 at the beginning November and they are now running 1.4.27 as they came set with auto update enabled. Now disabled.
There is a different D&D lanspeaker site page that I have also had mine logged into, but I probably should not reveal that as it may be experimental and probably not yet official. Plus I have found that the additional options I see there are not working. I can't see anything about Roon in those options, but I don't have roon anyway.
Update: I have just logged my speakers in to the D&D site. Auto update is now off, but the official lanspeaker web page now shows the same additional options under 'System' with 1.4.27 that I see with this version of the firmware as I saw and still see under the beta page version. The only difference is when I look at version 1.4.27 under 'System' in the beta page it says 'undefined' where under the official version it says 'Installed'.
The only additional options I see there are the ability to take and save up to 3 'Snapshots' of your settings, but I can't get these to work with either page app, they just hang when you try to save them. Does anyone now see these options under System on the official lanspeaker page with their firmware version?
Further Update: The D&D support page is now giving updated information on the firmware versions. The latest '
production version' is 1.3.18 as Lee says above. All 1.4 versions are shown as Beta, but mine shipped with 1.4.24. Strangely both of my versions 1.4.24 & my latest 1.4.27 are not even shown in the Beta list? 1.4.27 seems to be working fine for me with all the usual settings though, with the exception I still can't get the Snapshots to work.
https://support.dutchdutch.com/firmware-releases/
Beta Version 1.4.36 Enables Roon.