Yeah, we had some compression/encryption/XORing issues mixed with a long time where we couldn't access the files/game due to it requiring 3.65. (which it still uses). And yep, it'll use RePatch!Long time there wasn't any news. :-)
Is Phantasy Star Online 2 latest patch works on 3.65?
Is the english patch applied through RePatch? (it would avoid "heavy" MaiDump patching)
Nope, but that's both a blessing and a curse here - The files are arranged somewhat differently and put into 12 CPK files, which are always a unique kind of pain.When SEGA updates the vita version, do they move all the files around like they do on the PC version?
We've created a Vita application (PSO2v Tweaker) to install/update the English patch for you, so you don't even need a PC to update! Download link is now available at the same page as the OP (http://arks-later.com/pso2v.php). Enjoy!