PSP Firmware 3.01 Security Patch

In response to a reported “bug” (the new PSP game, JEANNE D’ARC was reported to have loading issue with firmware 3.00) found in PSP firmware 3.00, Sony Computer Entertainment released almost immediately the quickest revision of PSP firmware - version 3.01. In Sony’s typical security revision verbiage, the update is noted simply as “Revisions to strengthen security have been added.”
UPDATE NOW AVAILABLE:
PSP Firmware 3.01: Japanese | US | European | Chinese







i wont to take of this version 3.01
no i dont want something but i want version 2.60
what improvments does it have ?