Panasonic says blurry images issue solved on Lumix GX1 with G X Vario PZ 14-42mm

Hi all,

I contacted Panasonic regarding the issue where the Lumix GX1 shoots blurry images in combination with the Lumix G X Vario PZ 14-42mm at its long end at shutter speeds between 1/60 sec to 1/200 sec and with medium focal lengths:
http://www.dpreview.com/reviews/PanasonicDMCGX1/page16.asp#lens

They answered me the following:

"Thank you for your inquiry

The issue of blurry pictures at the maximum zoom as far as we are aware has been fixed by improving the hardware and the firmware so you should be able to go ahead and make a purchase of this camera.

We hope this information is helpful to you. Thank you for contacting Panasonic."

So it seems they did hardware & firmware changes to resolve this issue.
However I have not seen any new firmware coming out...
Have others noticed the newer lenses are working fine?