Cardiff City and Swansea City have kicked off their summer recruitment under two new bosses.
Erol Bulut, hamstrung by a transfer embargo, has brought in Yakou Meite, Ike Ugbo and Dimitrios Goutas, while Michael Duff has added Josh Ginnelly and Josh Key to his senior squad.
Bulut said he wanted up to 10 signings this summer and Duff is under no illusion that more strength will need to be added to his Swansea options, so expect more incomings in south Wales before the transfer window closes.
But how are the Welsh clubs' rivals getting on? Some have been extremely active - while others, including relegated Premier League sides Leeds United and Southampton - have yet to make an acquisition.
Here are all the comings and goings in the Championship so far.
Birmingham City
In: Krystian Bielik [Derby, undisclosed], Ethan Laird [Man Utd, undisclosed], Tyler Roberts [Leeds, undisclosed], Kevin Long [Free], Kijo Miyoshi [Royal Antwerp, Free]
Out: George Friend [Bristol Rovers, Free], Ryan Stirk [ Walsall, Free], Jobe Bellingham [Sunderland, undisclosed]
Released: Maxime Colin, Harlee Dean, Troy Deeney, George Friend, Jordan Graham
Blackburn Rovers
In: Niall Ennis [Plymouth, Free], Sondre Tronstad [Vitesse Arnhem, Free], Arnor Sigurdsson [CSKA Moscow, Undisclosed]
Out: Ben Brereton Diaz [Blackburn - Villarreal] Free
Released: Bradley Dack, Daniel Ayala, Dan Butterworth, Dan Pike, Sam Burns, Aidan Dowling, Ben Brereton Diaz
Bristol City
In: Rob Dickie [QPR, undisclosed], Ross McCrorie [Aberdeen, undisclosed], Haydon Roberts [Brighton, free]
Out: Jay Dasilva [Coventry, Free], Josh Owers [Yeovil, Free]
Released: Nathan Baker, Jay Dasilva,Taylor Moore, James Morton
Cardiff City
In: Ike Ugbo [Troyes, loan], Dimitrios Goutas [Sivasspor, Free], Yakou Meite [free]
Out: Dillon Phillips [Rotherham, Free], Gavin Whyte [Portsmouth, Free], Tom Sang [Port Vale, Free]
Released: Connor Wickham, Gavin Whyte, Dillon Phillips, Tom Sang
Coventry City
In: Jay Dasilva [Bristol City - Coventry] Free
Out: Josh Reid [Coventry City - Ross County] Undisclosed
Released: Fankaty Dabo, Julien Dacosta, Todd Kane, Sean Maguire, Michael Rose, Martyn Waghorn, Tyler Walker
Huddersfield Town
In:
Out: Romoney Crichlow [Peterborough, Free], Matty Daly [Harrogate, Free]
Released: Tomáš Vaclík, Florian Kamberi, Rolando Aarons, Ryan Schofield, Matty Daly, Romoney Crichlow, Danny Grant, Joseph Johnson, Ernaldo Krasniqi, Josh Mazfari, Donay O’Brien-Brady, Michael Parker, Michael Roxburgh, Hakeem Sandah, Tyree Sanusi, Sam Taylor, Ajay Weston, Sonny Whittingham
Hull City
In: Liam Delap [Man City, Loan], Xavier Simons [Chelsea, Undisclosed]. Owen Foster [Scunthorpe, Undisclosed]
Out: Harvey Cartwright [Grimsby, Loan], Callum Jones [Forest Green, Loan], Callum Elder [Derby, Free], Billy Chadwick [Stockport, Free], Tyler Smith [Bradford, Free]
Released: Tyler Smith, Billy Chadwick, Callum Elder
Ipswich Town
In: Jack Taylor [Peterborough, Undisclosed]
Out: Richard Keogh [Wycombe, Free], Rekeem Harper [Burton, Undisclosed], Gassan Ahadme [Cambridge, Loan], Joel Coleman [Bolton, Free], Corrie Ndaba [Kilmarnock, Loan]
Released: Joel Coleman, Richard Keogh, Matt Penney, Kane Vincent-Young
Leeds United
In:
Out: Alfie McCalmont [Carlisle, Undisclosed], Tyler Roberts [Birmingham, Undisclosed], Ben Andreucci [Bolton, Free]
Released: Will Brook, Adam Forshaw, Stuart McKinstry, Joel Robles
Leicester City
In: Harry Winks [Tottenham, Undisclosed], Conor Coady [Wolves, Undisclosed]
Out: James Maddison [Tottenham, £40m], Youri Tielemans [Aston Villa, Free], Caglar Soyuncu [Atletico Madrid, Free]
Released: Youri Tielemans, Caglar Soyuncu, Papy Mendy, Daniel Amartey, Tete, Ryan Bertrand, Ayoze Perez
Middlesbrough
In: Alex Gilbert [Brentford, Free], Terrell Agyemang [Manchester City, Free], Daniel Nkrumah [Leyton Orient, Free]
Out: Kamil Conteh [Grimsby, Loan Undisclosed, Jack Robinson [Carlisle, Undisclosed], Grant Hall [Rotherham, Free], Zach Hemming [St Mirren, Loan]
Released: Luke Daniels, Darnell Fisher, Grant Hall, Joe Lumley, Isiah Cornet, Joe Ridley, Oliver Swan, Alfie Doherty
Millwall
In: Joe Bryan [Fulham, Free], Kevin Nisbet [Hibernian, Undisclosed]
Out: Mason Bennett [Burton, Free]
Released: Scott Malone, Mason Bennett
Norwich City
In: Borja Sainz [Giresunspor, Free], Shane Duffy [Norwich, Free], Ashley Barnes [Burnley, Free], Jack Stacey [Bournemouth, Free], Vicente Reyes [Atlanta United 2, Undisclosed]
Out: Kieran Dowell [Rangers, Free], Teemu Pukki [Minnesota United, Free], John McCracken [Dundee, Loan]
Released: Sam Byram, Kieran Dowell, Michael McGovern, Josh Martin, Danel Sinani, Teemu Pukki
Plymouth Argyle
In: Lewis Gibson [Everton, Free], Kaine Kesler-Hayden [Aston Villa, Loan], Julio Pleguezuelo [FC Twente, Free]
Out: Conor Grant [Port Vale, Free], Danny Mayor [Fleetwood, Free], James Wilson [Bristol Rovers, Free], Niall Ennis [Blackburn, Free]
Released: James Bolton, Conor Grant, Danny Mayor, Luke Jephcott, Adam Parkes, Ryan Law, Finley Craske, Brandon Pursall, James Wilson, Niall Ennis
Preston North End
In: Calvin Ramsay [Liverpool, Loan]
Out:
Released: Aaron Bennett, Dana Amaral, Harry Nevin, Lewis Coulton, Matthew Olosunde
Queens Park Rangers
In: Ziyad Larkeche [Fulham, Free], Paul Smyth [Leyton Orien, Free], Taylor Richards [Brighton, Undisclosed]
Out: Murphy Mahoney {Swindon, Loan], Conor Masterson [Gillingham, Free], Rob Dickie [Bristol City, Undisclosed]
Released: Luke Amos, Leon Balogun, Olamide Shodipo, Conor Masterson, Charlie Owens, Ody Alfa
Rotherham United
In: Grant Hall [Middlesbrough, Free], Dillon Phillips [Cardiff, Free]
Out: Chiedozie Ogbene [Luton, Free], Richard Wood [Doncaster, Free], Josh Vickers [Derby, Free]
Released: Robbie Hemfrey, Mackenzie Warne, Richard Wood, Wes Harding
Sheffield Wednesday
In: Reece James [Blackpool, Undisclosed]
Out: Jaden Brown [Lincoln, Free], David Stockdale [York City, Free]
Released: Jack Hunt, David Stockdale, Dennis Adeniran, Jaden Brown, Sam Durrant, Ryan Galvin, Ben Heneghan
Southampton
In:
Out: Mislav Orsic [Trabzonspor, Undisclosed], Kegs Chauke [Burton, Undisclosed], Dan Nlundulu [Bolton, Undisclosed], Nico Lawrence [Colchester, Loan]
Released: Theo Walcott, Mohamed Elyounoussi, Goran Babic, Sam Bellis, Matthew Hall, Zuriel Otseh-Taiwo, Leon Pambou, Fedel Ross-Lang, Jak Stewart, Will Tizzard, Jack Turner, Caleb Watts
Stoke City
In: Enda Stevens [Sheff Utd, Free]
Out: Douglas James-Taylor [Walsall, Free]
Released: Sam Clucas, Demeaco Duhaney, Aden Flint, Morgan Fox, Phil Jagielka, Tashan Oakley-Boothe, Nick Powell
Sunderland
In: Jobe Bellingham [Birmingham, Undisclosed], Jenson Seelt [PSV Eindhoven, Free], Nectarios Triantis [Central Coast Mariners, £300,000], Luis Semedo [Benfica, Undisclosed]
Out: Leon Dajaku [Hadjuk Split, Undisclosed], Owen Robinson [Marine AFC, Free], Carl Winchester [Shrewsbury, Free]
Released: Harrison Bond, Jacob Carney, Cameron Jessup, Ethan Kachosa, Nathan Newall, Owen Robinson, Thomas Scott, Harrison Sohna, Carl Winchester
Swansea City
In: Josh Ginnelly [Hearts, Free], Glory Nzingo [Reims, Undisclosed], Josh Key [Exeter, Undisclosed]
Out: Michael Obafemi [Burnley, Undisclosed], Daniel Williams [The New Saints, Free]
Released: Ryan Manning, Joel Latibeaudiere, Andreas Sondergaard, Tivonge Rushesha, Daniel Williams
Watford
In: Matheus Martins [Udinese, Loan], Tom Ince [Reading, Undisclosed], Rhys Healey [Toulouse, Free]
Out: JJ McKiernan [Morecambe, Free], Domingos Quina [Udinese, Undisclosed], Joao Pedro [Brighton & Hove Albion, £30m], Juergen Elitim [Legia Warsaw, Undisclosed], Adrian Blake [Utrecht, Free]
Released: Leandro Bacuna, Britt Assombalonga
West Bromwich Albion
In:
Out: Dara O'Shea [West Brom - Burnley] £7m
Released: Jake Livermore, Tom Rogic, Kean Bryan
