Take a look at which players are affected...
1. Cameron Antwi
The club do hold the option to extend the midfielder's deal by 12 months
2. Liam Feeney
The winger has been on loan with Tranmere Rovers this season
3. Alex Fojticek
The club hold the option to extend the goalkeeper's deal by 12 months
4. Luke Garbutt
The left-back has played a leading role for Blackpool this season
5. Ben Garrity
The club hold the option to extend the midfielder's deal by 12 months. Garrity has been on loan with Oldham this season.
6. James Husband
The club hold the option to extend the defender's deal by 12 months