It's even mentioned on the VZW site if you click "more information" about system requirements in the lower right corner of the BB support page (BlackBerryâ„¢ System Requirements
) . The default choice is now 4.3 - but there's not yet a link to download it on the VZW site.
I called VZW and was told that I could use the download from BB for my VZW 8830. I specifically asked her to check with tech, which she claims she did after I was on hold for a few minutes. She told me that VZW tech support says it's fine. But I think I'll wait for a download from VZW to be safe - it's amazing how screwed up things can get from a single glitch.