Can jpeg files be added to the post attachment list?
Yes.
Grumpy_Mike:
Yes.
I think this may confuse the OP. I suspect you are distinguishing between "can" and "will"
...R
Then I am not sure I understand the question. It always has been on the list and you have always been able to do it.
I think the issue is the difference between .jpg and .jpeg as the file type.
@LarryD, can you not simply change the file type to .jpg ?
...R
@Robin2
That was my first thought but, the iPad does not give me the option.
I am now sending the photos to the PC then uploading from there.
A bit of a pain.
.
Dump the IPad 
...R
Agreed
. . .
Wife won't let me.
I'll start using imgur.com from now on and link to the images there.
.
LarryD:
Wife won't let me.
Apply Reply #7 with small modification
...R