Sony has now released a firmware update for all North American PSPs. The update upgrades the firmware to version 1.52 and includes several security updates.

“Japan received its own PSP 1.52 earlier this month, and now, US gamers can enjoy the fun of updating their PSPs to the latest version,” reports IGN. “No great features have been added to 1.52 (except the ability to play UMD Music in the main menu). The security updates in 1.52, however, will likely be required in American PSP games sometime soon, as new PSP titles in Japan already require the previous 1.51 update.“