With the 3-0 home win against Queens Park Rangers, Ipswich secured second place behind already top-of-the-table Coventry and were promoted.
Swedish midfielder Jens Cajuste was missing from Ipswich's squad, but reports say the club is buying out his loan deal with Napoli.
Elsewhere, the fight for places in the upcoming playoffs was more exciting.
Wrexham's supporters, in particular, oscillated between hope and despair. A winning goal at home against Middlesbrough would have given them the chance to move from Division 5 to the top flight in four years, but the match ended 2–2.
In the playoff semi-finals, Millwall will face Hull, and Kim Hellberg's Middlesbrough will face Southampton.
