PS Vita: Adrenaline goes open source, TheFlow takes a break
Hacker TheFlow released Adrenaline v3 for PS vita a couple days ago. The popular ePSP CFW brought the long awaited full support of PS1 games with sound, which bridged the gap with ePSP features on older firmwares such as 3.18.
A few hours after the release, TheFlow has fixed a few annoying bugs (doubletap bug + Adrenaline menu after enabling/disabling wifi), but, more importantly, he made Adrenaline open source. He also released version 3.1 today, while announcing he was taking a break from the scene.
Adrenaline is probably the most complete ePSP CFW to be open sourced. PSP Custom Firmwares do not emerge out of thin air nowadays, and parts of them are the result of reverse engineering of past CFW code: people familiar with past PSP Custom Firwmares such as M33 or Pro CFW will recognize familiar folder names and structures in the cef folder. But it would be interesting to see how much could be added to Adrenaline from projects such as ARK, or the recently open sourced M33, the grandfather of all ePSP Custom Firmware.
Download Adrenaline source (developers)
Download Adrenaline 3.1 (end users)