The Championship is set for one of its most high profile years ever and teams have been quick off the mark to strengthen for the campaign.
The summer registration window opened on Tuesday, June 10 and many sides have already secured new faces to bolster the ranks.
The addition of Rangers, Hearts and Hibernian to the mix has added intrigue to a traditionally competitive league, with the likes of Falkirk, Queen of the South and Raith Rovers all hopeful of challenging them for honours.
The summer registration closes again on Monday, September 1.
Alloa Athletic
In: David Weatherston (Stirling Albion), John Gibson (Dundee), Mark Docherty (Stranraer)
Out: Scott Bain (Dundee), Darren Young (Albion Rovers), Andy Kirk
Cowdenbeath
In: Sean Higgins (Stenhousemuir), Iain Campbell (Forfar)
Out: Greg Stewart (Dundee), Kane Hemmings (Barnsley), Jamie Stevenonson (Peterhead), Jamie Pyper, Sebastian Usai, Marc McKenzie (Albion Rovers)
Dumbarton
In: Scott Taggart (Morton) Out: Scott Smith, Nicky Phinn, Paul McGinn (Dundee)
Falkirk
In:
Out: Phil Roberts (Dundee), Michael McGovern (Hamilton)
Hearts
In: Morgaro Gomis (Dundee United), Soufian El Hassnaoui (Sparta Rotterdam), James Keatings (Hamilton) Out: Jamie MacDonald, Jamie Hamill (Kilmarnock), Dylan McGowan (Adelaide United), Callum Tapping, Mark Ridgers (St Mirren), Ryan Stevenson (Partick Thistle)
Hibernian
In:
Out: Ben Williams, James McPake (Dundee), Kevin Thomson (Dundee), Alan Maybury, Paul Cairney, Sean Murdoch, Tom Taiwo, James Collins (Shrewsbury Town)
Livingston
In:
Out: Marc McNulty (Sheffield United), Andrew Barrowman, Martin Scott (Raith Rovers), Danny Denholm (Forfar), Michal Habai, Mike Mampuya, Nejc Mavlja, Kyle Wilkie
Queen of the South
In: John Baird (Raith Rovers), Lewis Kidd (Celtic)
Out: Derek Young (Forfar), Calum Antell
Raith Rovers
In: Craig Barr (Airdrieonians), Martin Scott (Livingston), Kevin Cuthbert (Hamilton)
Out: Joe Cardle (Ross County), John Baird (Queen of the South), Gordon Smith, Fraser Mullen, Reece Donaldson (Peterhead)
Rangers
In: Kenny Miller (Vancouver Whitecaps), Darren McGregor (St Mirren)
Out: Andrew Little (Preston North End), Chris Hegarty, Ross Perry, Charlie Telfer (Dundee United)