I am unable to upgrade OTA or via the web due to BES policy. VZW has not posted the downloadable installation file as of yet.
I believe that a change in Platform version refers to a single file in the CDMA subfolder of the installation directory:
C:\Program Files\Common Files\Research In Motion\Shared\Loader Files\9630AMEA_v5.0.0.591_P4.2.0.272\CDMA\rim0x0D0 00D04.sfi
Can anyone who upgrades via the Desktop Manager confirm this is the only file that changes? There may be a temporary work-around until Big Red takes the time to post the installer...