IphoneWiki moderator @Veeence tweeted this morning about iOS 4.3 that was released by Apple for Developers beta testing . Its not safe for iphone jailbreakers and especially unlockers to upgrade to iOS 4.3 . According to Veence the new iOS firmware will upgrade your current unlocked baseband to higher 04.08.00 [tweet pic below].
ATT users must have received a SMS from their provider encouraging them to upgrade to iOS 4.3 to get an important upgrade which we presume is the new HotSpot Feature . But if you are an unlocker just stay away from the trap .
We still don’t have an unlock for baseband 02.10.04 and 03.10.01 , and upgrading to latest baseband 04.08.00 will further aggravate the situation. Official warning from Iphone Dev Team below.
Please share this update with your Facebook Friends so they are also aware of the risks in upgrading the firmware.