Rotherham United, Huddersfield Town and Birmingham City were all relegated from the Championship, while Stockport County, Wrexham and Mansfield Town earned promotion.
The play-offs in the third and fourth tier are still ongoing. Bolton Wanderers and Oxford United currently lead Barnsley and Peterborough United respectively heading into their second semi-final legs.
Meanwhile in League Two, MK Dons, Doncaster, Crewe and Crawley are all looking to join the other three teams going up.
Even with League One line-up still to be complete for next season, the bookies have already started to name their favourites to win the competition.
Here are the current odds from Sky Bet:
1. What are Blackpool's odds for the 2024/25 season?
We've taken a look at the early odds from the bookies. Photo: CameraSport - Lee Parker
2. Cambridge United- 66/1
Cambridge United finished 18th in League One in the most recent season. Photo: CameraSport - Andrew Kearns
3. Burton Albion- 66/1
Burton Albion finished 20th in League One in the most recent season. Photo: CameraSport - Andrew Kearns
4. Shrewsbury Town- 50/1
Shrewsbury Town finished 19th in League One in the most recent season. Photo: CameraSport - Lee Parker
5. Northampton Town- 50/1
Northampton finished 14th in League One in the most recent season. Photo: CameraSport - Andrew Kearns
6. Exeter City- 40/1
Exeter City finished 13th in League One in the most recent season. Photo: CameraSport - Richard Martin-Rob