Regarding the latest available firmware update, it appears to have repaired the CEC issue beautifully.
However, the other common issue, where Samsung (and other) audio devices cannot be controlled via Bluetooth from the Apple remote, that issue is still in effect, and it has NOT been repaired with the update.
When I connect my sound bar via Bluetooth, the Apple remote causes the volume indicator to go up and down, but the actual volume coming out of my Samsung device stays at 100% full blast.
The only way so far that I can continue to use the Apple remote to control my Samsung volume is to keep using the Samsung plugged in directly into my RCA TV via “light pipe”. That way, through a combination of HDMI and infrared, I can change the volume with my Apple remote. But it is still simply not as effective as using the Apple remote for a Bluetooth device. And, it does not show you the volume indicator on the right side of the screen, as it does when it is monitoring a Bluetooth audio device.
So, the CEC issue is fixed, the Bluetooth volume issue is not fixed.