Mine only has the 2018 trademark on the packaging, but neither drifting nor other problems have occurred with my model in the last 7-8 months of continuous use. Of course, it's possible that mine is still the 2019 version or that Digitec is now definitely selling it. However, this would require an official statement from Digitec to confirm this.

A software update via PC may be able to help. Attention Controller is not compatible with PS5. Hope that an update will also be released here.