Aldershot sign former Forest Green Rovers defender Luke Oliver, while midfielder Sam Hatton agrees a new deal.
Peter Cavanagh retires from football and leaves Southport to join Everton's coaching staff.
Businessman Stewart Donald purchases a 10% stake in League Two Oxford United but will remain owner of Eastleigh.
National League side Grimsby Town sign striker Padraig Amond on a one-year deal after his release by Morecambe.
Kidderminster Harriers striker Reece Hales signs a new one-year contract, while winger Ahmed Obeng joins Hednesford Town.
National League side Chester sign former Burton defender Ian Sharps on a one-year deal.
FC Halifax sign defender Hamza Bencherif after he leaves National League rivals Lincoln City.
Coventry City complete the signing of former Forest Green left-back Chris Stokes on a one-year contract.