I've heard that the hole on the baseplate is hexagonal shaped but most online shops don't post pics of the base. I want to get it so I can switch out the kingpin for the reverse krux ones. So how can you tell if the truck has the hexagon shaped hole.
Besides going in to shops and upending some to check, the only other way is to message or call the shops and ask them individually to have a look at their stock.
I know this was the case with Thunder, so the newer Thunder team trucks I have definitely have the hex pattern under the baseplate, as of mid last year maybe, but I hadn't heard it happening with Venture yet. Of course I don't hear that much, so if they have done it with new Ventures, all good.
The only other thing to note is some shops might be sitting on old stock (which of course would not have the new baseplate option) so you would need to ask someone who either has a good turn over of stock, or just got a new drop in, maybe if they have the most recent colourway or pro truck, I think they would me much more likely to have that new modification than any other versions.
Edit:
These guys have bottom pics.
https://www.nativeskatestore.co.uk/venture-trucks-m74No hex baseplate option on any of those that I could see, but they don't look like super new stock either.
Example:
https://www.nativeskatestore.co.uk/skateboards-c7/skateboard-trucks-c18/lucien-clarke-pro-editions-5-2-skateboard-trucks-8-0-p59786Second edit:
I found this post with the Thunder hex baseplate, from Jan 2021 but as per the sticker on it, actually from Nov 2020, which is further back than I remember, but any which way, there still doesn't seem to be any official release with the hex / inverted option yet. Might be a while off, or just round the corner. Who knows.
i saw these baseplates with a shorter king pin.. the bottom of the kingpin is flush with the base plate...thunder will probably release a kingpin soon