Mick McCarthy has resigned as Republic of Ireland boss with immediate effect.
Stephen Kenny has taken charge of the senior side, the Football Association of Ireland has announced.
It had already been determined that Kenny, the current Under-21 boss, would step up as his successor on August 1.
However an FAI statement has now confirmed: "The Football Association of Ireland announces that Mick McCarthy is to be succeeded as national team manager by Stephen Kenny with immediate effect.
"The handover has been agreed with both men in light of the delay to the European Championship play-offs caused by the Covid-19 pandemic."
The decision has been made to make the move now to allow a smooth transition and hand Kenny the chance to plan thoroughly for the eventual Euro 2020 playoff clash with Slovakia - the date of which is still to be determined amid the ongoing coronavirus pandemic.