Mike Jurecki of 910 AM in Phoenix, a Cardinals Insider, tweeted Frank Beamer is set to retire after the 2015 season.

Source: #VirginiaTech Frank Beamer has told his staff that he's retiring after the season, scheduled to meet with the team this afternoon.— Mike Jurecki (@mikejurecki) November 1, 2015

Keep in mind, it's a single sourced report. I have requested a comment from the Virginia Tech athletic department, and will let you know if I hear back.