Auckland Kindergarten Association chief executive Tanya Harvey has quit, a fortnight after her board announced an independent review of reforms that she has driven.
Harvey, who has led the association for 18 years, said it was time for new leadership to support "the next phase of the AKA strategy".
Board chairman Simon Jones announced on October 26 that the board would engage an independent reviewer to consider the current strategy of moving kindergartens from half-day sessions to all-day care, staying open for seven hours a day and through the school holidays.
The strategy has split the association, which serves more than 10,000 children in 107 kindergartens.
Roskill South Kindergarten chair Katherine Souness, a member of the Save Our Kindergartens campaign, welcomed the decision to review the strategy.