Despite water bottles melting, ballboys collapsing and players vomiting and passing out when temperatures exceeded 40 degrees Celsius for four days at this year's tournament, play was stopped for only four hours on the outer courts.
The heat policy, as always, will be applied at the referee's discretion
There was a groundswell of criticism from players, mainly over the lack of transparency about when the policy would be implemented as it was at the discretion of the tournament referee and not triggered by temperatures reaching a certain level.
Tournament director Craig Tiley said on Tuesday the addition of a roof over a third show court, the Margaret Court Arena, would mitigate the effects of hot weather and he hoped the changes to the policy would make matters clearer to players.
"When conditions exceed these levels the referee is taking into account the forecast and state of play when making his discretionary call."