Firmware 3.03 - No Devhook Support, Yet
Sony has released PSP System Update, 3.03 today. Like the previous 3.0x releases, it doesn't offer anything exciting unless you have a PS3. "[The PLAYSTATION Network] Titles which can be played from the PSN have been increased" is the only update that Sony says is included in the software upgrade. As the title indicates, this version will not work with DevHook. While most modules in the update were left with their keys unchanged, some of the modules have different keys than in previous versions, making decryption and Devhook support impossible for the time being.
This release does not come with home brew functionality so don't upgrade if you'd like to continue enjoying that luxury. With that, you may download the update below should you wish to install it on your PSP.
Download System Update 3.03Via
PSPUpdates