iR Shell 3.9 by Ahman
* Added support for 3.80M33-2, M33-4 & M33-5. Pls note M33-1 & M33-3 are not supported due to some technical issues which I'm lazy to resolve.
* Added support for 3.80 Popsloader Version 2. Version 1 isn't supported.
* The 1.5 Kernel Addon for 3.71M33 & 3.80M33 has caused some incompatibility issues with fw 1.5 iR Shell. This is now resolved.
* Enhance PSP ISO compatability. Previously failed ISOs will probably work in this release.
* For slim only, the nethostfs MAX mode is now compatible with WPA.
* Some older firmware supports have been removed to reduce the distribution archive. This version has support for fw 1.5, 3.10 to 3.80. Also, directories EXTAPP15 & EXTAPP3X have been combined into a single EXTAPP to save space. Each APP# directory has 2 EBOOTs, with EBOOT.PBP for fw 3.x and EBOOT15.PBP for fw 1.5.
Special thanks to:
* Dark_AleX for his help and support in iR Shell development. Many of the M33 related features are made possible with his assistance.
* Tyranid and other developers in ps2dev.org for creating the pspsdk.
* StoneCut, F34R and other moderators who keep irshell.org running and providing technical support to the community.
* All iR Shell beta testers, donators, skins & plugin contributors.
* Smokescreen for the new included skin.
* M33 Custom firmware & popsloader are developed by Dark_AleX/M33.
* remotejoyGUI for Windows & Cleanup Script is developed by StoneCut.
* remotejoy & usbhostfs are developed by Tyranid.
* iR Shell bundled skins & plugins are developed by their corresponding authors.
* iR Shell Manual & FAQs are written by StoneCut.
Source - irshell.org