I wrote my graduate advisor asking him to updated his reference letters for me, but he has yet to respond. I e-mailed him again, but he and I did not have the best relationship, and I am worried that now that I have graduated, he may not do this for me. I was curious about I should do in the situation that he refuses to update it.
I have been told it raises questions when a letter is not included in applications.
His old letter is stored on mathjobs.org, and the last date was probably April of this year. I was curious that, if I have to, would it look bad if I use the old letter?
If anything, since I have deadlines coming up, can I use the old letter as a placement? I was told I can mention that a letter should be updated soon in my cover letter.