Is Tamron 17-50 compatible with 80D?

Hi,
I have an old 400D with the Tamron 17-50 zoom, not VLC. I read in other posts that there could be some issues beteween old Tamron lenses and this new camera. I visited the Tamron websites and as far as I understand I didn't find any news about my lens. Is somebody aware about issue between 80D and 17-50 lens?
Thanks in advance for any help.

Check the thread at https://www.dpreview.c​om/forums/post/5751735​6.

I seem to remember seeing something about a week ago but only with certain lenses and the 17-50 doesn't seem to be one of them. It caused the some Canon cameras to lock up when using LIveView but alerted users of the 80D that not all auto focusing functions would be available. Tamron can rechip the affected lenses but most people just worked around the limitation. See http://www.tamron-usa.com/about/updates_​canon.php for the details on all cameras but I've copied the 80D section below..

A notice regarding compatibility issue with the EOS 80D and availability of firmware update service
Dear users and potential purchasers of Tamron interchangeable lenses for Canon.
Thank you for using Tamron products.
We wish to notify you that the AF functions of the following interchangeable lenses for Canon, which have been produced before May 11st, 2015 and have not updated firmware when there were the firmware update service announcements below, do not function in Live View mode when used on the EOS 80D which went on sale on March 25th, 2016 in Japan.

*Please see the below links for the previous firmware update service announcements regarding the EOS Rebel T6s/EOS 760D (EOS 8000D) / the EOS Rebel T6i/ EOS 750D (EOS Kiss X8i), the EOS 5Ds / the EOS 5DsR, and the firmware update service for SP 150-600mm F/5-6.3 Di VC USD (Model A011) for panning shot.

http://www.tamron.co.j​p …/release_2015/0​508_3.html
http://www.tamron.co.j​p …ws/release_2015​/0508.html
http://www.tamron.co.j​p …/release_2015/0​622_3.html

We sincerely apologize to all users and potential purchasers for any inconvenience the issue may cause.

■Affected models
Interchangeable lenses for Canon, which has been produced before May 11st

・SP 15-30mm F/2.8 Di VC USD (Model A012）
・SP 70-200mm F/2.8 Di VC USD (Model A009）
・SP 150-600mm F/5-6.3 Di VC USD (Model A011）
・SP 90mm F/2.8 Di MACRO 1:1 VC USD（Model F004）
・28-300mm F/3.5-6.3 Di VC PZD (Model A010）
・16-300mm F/3.5-6.3 Di II VC PZD MACRO (Model B016）
Serial numbers which have produced after May 11st, 2015
Firmware update will not be required for those lenses (serial numbers).
Please check the serial number from the links below.

・SP 15-30mm F/2.8 Di VC USD (Model A012）
・SP 70-200mm F/2.8 Di VC USD (Model A009）
・SP 150-600mm F/5-6.3 Di VC USD (Model A011）
・SP 90mm F/2.8 Di MACRO 1:1 VC USD（Model F004）
・28-300mm F/3.5-6.3 Di VC PZD (Model A010）
・16-300mm F/3.5-6.3 Di II VC PZD MACRO (Model B016）

For those who require firmware update service, please contact your local Tamron distributor for more details.

Thanks for your reply

So it seems that my lens is not affected by any issues with Canon 80D

This lens has should be compatible with all recent Canon bodies. It is also the most reliably accurate focusing lens I have (determined via FoCal analysis).

Also, if anyone does need a firmware update to assure compatibility, rest assured that Tamron service is very fast, and you will have your lens back in just a few days.