Firmware 7.43...? USB driver?

On the downloads page there is a document “Sierra Wireless Open AT Firmware 7.43 Preliminary Release Note”.

But there is no other references to be found to this 7.43 firmware. No new SDK. No firmware files. Not the new DWLWin version mentioned…

And… why does most downloads always have the current date as release date?

Also, where is the USB to serial driver for Windows that used to be available? Even though it was quite crappy with various bugs, it was still necessary to be able to connect to a (Win Vista/7) PC directly over USB.