Preston North End sign Everton's Aiden McGeady, Sheffield Wednesday's Marnick Vermijl and Middlesbrough's Alex Baptiste.
Championship side Rotherham United sign Middlesbrough defender Dael Fry on a season-long loan deal.
Dundee United agree a deal to sign Norwich City midfielder Tony Andreu on a year-long loan.
Fulham midfielder Larnell Cole has joined Inverness Caledonian Thistle on loan until January.
Sheffield Wednesday have signed winger Adam Reach from Middlesbrough on a permanent deal.
Mansfield have secured the services of defender Alex Iacovitti on loan from Nottingham Forest until the end of the season, subject to EFL approval.
Wolves' Wales Under-19 forward Aaron Collins joins League Two Notts County on loan, initially until January.
Norwich City send James Maddison on loan to Aberdeen eight months after signing the midfielder for £6m from Coventry City.