THE make-up of npower League 1 for the 2011/12 season was finalised over the weekend following a thrilling series of play-off finals.
Peterborough United, who ended the season fourth in League 1, defeated third-placed Huddersfield at Old Trafford to claim their place in the Championship.
The Posh struck three goals in seven devastating minutes late on to claim victory, with Tommy Rowe, Craig Mackail-Smith and Grant McCann all on target.
They earned Darren Ferguson's men a 3-0 victory and an instant return to the second tier following relegation last term.
Peterborough join Brighton & Hove Albion and Southampton in moving upwards from League 1, while they are replaced by the relegated Scunthorpe United, Sheffield United and Preston North End.
In League 2, Stevenage triumphed in their Old Trafford play-off final over Torquay United to win promotion just a year after coming up from the Conference.
Chesterfield, Bury and Wycombe Wanderers were the other clubs to make the step up, while Dagenham & Redbridge, Bristol Rovers, Swindon Town and Plymouth Argyle are departing, bound for the basement division.
Next season's fixtures are released on Friday June 17, and leytonorient.com will be the place to find them out first.