MK Dons unveiled their new manager at a press conference earlier this afternoon.
Robbie Nielson joins from Hearts and said he was delighted with the move.
"I'm delighted, It is a big move, it is a big step for me to come down to England but I just felt it was the right place to come, the chairman the set up at the club, the potential here it's a great opportunity for me... First and foremost the chairman, the stability he's given the ex-managers the support he's given them, the infrastructure that's here, the opportunity that's here. I had a great start at Hearts and I think I'm now ready to make the next step and I think this is the right place for me at the right time."
You can watch his press conference below
Watch our profile of the new Dons boss.
MK Dons have officially appointed Hearts boss Robbie Neilson as their new manager.
The 36-year-old takes over from Karl Robinson who left stadium:mk last month.
A compensation deal between the two clubs was agreed last night, and Neilson as well as assistant Stevie Crawford have now finalised personal terms.
The Scot takes over a Dons side currently sitting 19th in League One, and leaves Hearts 2nd in the SPL.
Caretaker boss Richie Barker will take charge of tomorrow's FA Cup game at Charlton, before Neilson is unveiled to the media on Monday.
It’s great to be here and I’m looking forward to developing the club, developing the players and moving the club forward.
The most important thing for me was picking the right chairman and the right club and this was the right match at the right time –it’s a Club that’s going places.
Hopefully the fans are ready for the ride. We want to create excitement but, most importantly, win football matches. With the squad that we’ve got here, we should be winning football matches – our job is to help them do that.
MK Dons have agreed a deal with Hearts for Robbie Neilson to become their new manager.
A compensation package between the two clubs was struck last night, and Neilson himself has agreed personal terms.
It's expected he will travel down to Milton Keynes today to finalise the move where he will be joined by assistant boss Stevie Crawford.
Neilson leaves a Hearts side that are second in the SPL, while the Dons are currently 19th in League One.
Ann Budge, the Board of Directors and everyone at Heart of Midlothian Football Club would like to sincerely thank Robbie and Stevie for the enormous part they have played in helping to re-establish the club in the upper echelons of Scottish football.
The record-breaking 2014-15 Championship-winning season, which secured our promotion back to the top flight at the first time of asking, will long live in the memory of Hearts supporters, as will the highly impressive third-place finish and the return to European football which was achieved the following season.
They leave us in an enviable position, sitting second in the Premiership table with a healthy playing squad, rich with talent and promise. We wish them every success in their new challenge with Milton Keynes Dons FC.
Video report by ITV News Anglia's Rob Halden-Pratt
MK Dons look increasingly likely to have a new man in charge by the end of the week.
Hearts' boss Robbie Neilson is expected to join the League One club after his side play Rangers in the Scottish Premier League tomorrow.
That means his first game in charge could be against his predecessor Karl Robinson's new club Charlton.
Championship side Rotherham United could make a late bid to hijack MK Dons' move to land Hearts boss Robbie Neilson, according to reports.
The Millers were rocked by the resignation of Kenny Jackett after just 39 days in charge yesterday, and the Daily Mirror says they've now taken an interest in Neilson.
It's understood the Dons are still in advanced talks with Neilson and it remains to be seen whether he will be swayed by Rotherham's approach.
With Hearts boss Robbie Neilson expected to take over at MK Dons imminently, we look at his credentials.Read the full story ›
MK Dons have made an official approach to speak to Hearts head coach Robbie Neilson about their vacant managerial position.
The Dons are on the lookout for a new boss after parting company with Karl Robinson last month, but have so far been unable to find the right candidate.
However, they have now asked Scottish Premiership club Hearts for permission to hold talks with 36-year-old Neilson who has been in charge at Tynecastle since 2014.
The Dons say no further comment will be made until after Hearts' SPL match against Rangers on Wednesday night.
Milton Keynes Dons Football Club can confirm it has made an official approach for Heart of Midlothian’s head coach Robbie Neilson with regards to its vacant managerial position.
The club respects that Hearts has an important fixture with Rangers in the Scottish Premiership on Wednesday evening and, therefore, no further comment will be made until after that match.
We look at who could be the next MK Dons manager after Steven Gerrard dropped out of the race to succeed Karl Robinson.Read the full story ›
It is understood that former Liverpool and England captain Steven Gerrard has turned down the chance to become the MK Dons manager.
Gerrard's playing contract with LA Galaxy has expired but its been reported he has yet to make a decision on whether he wants to extend his playing career for a while longer or take up coaching full-time.
MK Dons fans have been giving their reaction to speculation linking former Liverpool midfielder Steven Gerrard with the vacant manager's job.
It's believed preliminary talks have taken place between the 36-year-old and the Dons, although other candidates are also thought to be under consideration.