has released PSP Custom Firmware 4.01 M33 today. In addition to minor bug fixes, this edition brings 4.01 kernel support, complete with multi-language support for Recovery Mode.
Instructions can be found in the included readme on how to translate the recovery text to your native language. And no, this release does not include in-XMB recovery or savestate support... those enhancements are still planned, but will likely be added in a future update.
Download: PSP Custom Firmware 4.01 M33
As usual, the Firmware Update can be applied directly via Network Update if you are running a previous release from 3.80 M33 and onward, or by following the manual installation instructions below, provided that you have a homebrew capable PSP.
* Extract the archive.
* Copy included UPDATE folder to X:/PSP/GAME
* Place the official firmware 4.01 update EBOOT, named as 401.PBP, in the newly created UPDATE folder
* Begin installation from the Game menu.
Finally, a 4.01 M33 specific 1.5 kernel add-on is due to be released within the next couple days, possibly tonight. More to come!