Toumani Diagouraga has left the Bulls to sign for Peterboro on a four year contract.
'Dave' told their official site: 'The ambition that the club showed was first-class and that has persuaded me to join. Peterborough are going places and I am pleased to be here. I played against the club for Hereford last season and when the opportunity came about to talk to Peterborough I jumped at the chance.
'You could see that they had some very good players and the last two years have been very successful for the club and hopefully we can continue to push forward. I am pleased to be back in the Championship again, I was at Watford at this level and it has been good for me to play in League Two and League One, it was a learning curve.
'I had a very good time at Hereford and I am sad to leave them, but at the end of the day I had to do what is best for me and my career and it is exciting times that I am now a Peterborough player and I can't wait to get started,'
He played 98 times for the Bulls during two seasons at Edgar Street, scoring four times. His departure leaves ten players under contract for next season.