iOS 4.2.6 Firmware Download Released for CDMA iPhone 4
Apple has posted iOS 4.2.6 for download, the update is aimed specifically at CDMA iPhone 4 models which are due for a release later in the week. The early availability of the iPhone firmware is likely intended for Verizon iPhone review units that have been sent to journalists.
Download iOS 4.2.6 Firmware
iOS 4.2.6 is Build 8E200 and weighs in at 652MB:
This specific build is thus far intended exclusively for CDMA iPhone 4 models, there is no need for other users to download the IPSW file.