Where is the date code on the 16-35 f4 IS?

I just got a 16-35L f4 IS! .
It is a new lens and therefore I assume it was made in 2015.
But I cannot find a Uxxxxxxx date code in the usual location.
Only my 10 digit serial on the outside center of the barrel.

I have searched here and on the web regarding this lens specifically, but only get results for the 16-25 f2.8

Thanks in advance.

Google "canon no more date codes"

Interesting. As the first thread regard their cancellation in the results is dated 2012.

This recent thread mentions a 2015 UDxxxxxx dated lens.

https://photography-on-the.net …/showthread.php​?t=1436685

So I just assumed I was blind to the date-code's location.

I think new designs don't get codes. Older designs manufactured recently get codes.
That's why 135L still get codes. 16-35 F4 newer design so no codes.

Thanks for the info.
Didn't know that.

The first batch of the 70-200 came with UYxxxx, after that the 24-70ii, 70-200ii & 16-35 F/4L does not have code date but the rest.