Permanent 6.20 Pro B6

Compatibility

6.20 [1g, 2g, 3g, 4g, 5g]
6.35 [1g, 2g, 3g, 4g, 5g, 7g, 9g]
6.39 [1g, 2g, 3g, 4g, 5g, 7g, 9g]
Features

Homebrew Compatible – Run your own unsigned applications, both user and kernel mode.
Plugin Compatible – Add new features to your PSP via kernel mode background plugins.
ISO / CSO Game Dump Playback – Backup your own UMD discs via USB and play them from Flash Storage.
2g+ Memory Range Unlock – Use the previously locked RAM range within your own homebrews.
NODRM Engine – Use your bought DLCs, no matter on which PSN account you are currently logged in.
PSX Emulator Unlock – Play your PSX classics, yes – all of them. Not just PSN titles.
And a lot more…
As for the PRO-B6 change log, I’m not sure… 6.39 support is obviously new and it’s a safe bet some bugs have been squashed. The actual change log is not included nor mentioned on the new Google Code project page (follow source link).

How do you install it? Check this page out.

Update: And the change log says…

[!]Fixed NODRM Engine on Dissidia Duodecim
[!]Fixed High Capacity Bug
[!]Fixed Bug in np9660
[!]Fixed button-input related startup freeze
[!]Fixed rare crash in exploiting stage
[+]Added 6.39 Kernel Support

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