Well, it's a bit hard to keep track precisely. Different sources might have different updates. But you can usually find the current arc mentioned on manga-related websites or social media groups dedicated to JJK.
Hentai comic JJK usually has bold and unconventional graphics along with plotlines that revolve around sexual themes. It's not for the faint-hearted or those looking for mainstream comics.
Well, 'jjk light novel' probably delves deeper into the Jujutsu Kaisen universe. It might tell side stories of the main characters like Yuji Itadori, Megumi Fushiguro, etc. Maybe it shows different aspects of their training, or their interactions with other jujutsu sorcerers that we don't get to see fully in the original series. It's a great way to explore more of the lore and the relationships within this cool fictional world.
The latest volume of the JJK manga is constantly being updated. Usually, you can find out by following the announcements from the manga's official channels or checking with dedicated manga stores or online retailers.