Versatile Dagenham defender Richard Rose has had his contract terminated by mutual consent, while defender Andrew Byrne has joined the club.
Captain Mark Arber is one of eight out-of-contract players released by Dagenham & Redbridge.
Boss Jamie Pitman has not ruled out a return to Hereford for Richard Rose but believes he will not be short of suitors.
Hereford defender Richard Rose has put pen to paper on a new one-year contract with the club.
Hereford boss Simon Davey confirmed that Richard Rose is the subject of interest from a higher division club.
Hereford United have brought Ryan Green back to the club and secured the future of Richard Rose.
Midfielders Sam Gwynne and Craig Jones have pledged their allegiance to Hereford by signing new contracts.
Hereford have completed the signing of Matt Done from Wrexham for an undisclosed fee.
Sam Gwynne, Jordan Fitzpatrick and Marcus Palmer have all agreed contract extensions at Edgar Street.