Yes, although the impact is unknown. Avoiding breaking such users is one reason why 2.0.4.23 was just 2.0.4.5 plus a warning. Of course, the other big reason for not going Beta was Experimental and Canary only had about two weeks of testing, whereas now they’ve had about two months and seem to work OK.
For past FluentFTP background, please see current post here or the framework update discussion here.