@AlexScan: Is this your model? https://www.samsung.com/fr/support/model/QE65Q9FAMTXXC/
If so, there's a software update with version number 1250.5 available to download from there which should upgrade your TV from the beta.
@AntS, the model you have linked is a 2017 one whilst @AlexScan says he has a 2018 set. The Beta was 1159 for 2018 models and 2159.1 for 2017. https://eu.community.samsung.com/t5/TV-Audio-Video/Ihr-wollt-die-Beta-Software-1159-2018er-TVs-oder-... The firmware available on the website for 2018 Q9F appears to be 1153.3.
Cheers @JAMES4578. You're right. My bad.
All I've been advised is that it's matter of waiting for the next official software version for the model to be released. Unfortunately I'm unable to get any info on that - and hoped that was it.
LOL! Well, I'm going to blame my faux-pas on the cold virus that's fallen in love with me the past week... and which is making me sound like a cross between Barry White and Marge Simpson at the moment.