A huge amount of reparations continues to be made by the New Zealand Government as the British Crown's representative in New Zealand, as owed due to breaches of Te Tiriti o Waitangi - for illegal theft and colonisation of Maori lands, massacres such as Parihaka, acts of suppression of Maori culture, such as being forbidden to speak their language in schools.
This is after having to fight to get Te Tiriti acknowledged as a living and speaking document, that had to be abided by, rather than conveniently ignored and declared irrelevant when the ink was barely dry (sound familiar?)
Now it is respected as one of our founding constitutional document, and consultation and consideration of its principles must be made when drafting and implementing legislation.
One of the most powerful elements of reparation however, is a Crown representative going on the marae, to acknowledge the wrongs that were done, and to apologise. This restores the iwi's mana (tribe's honour).
There's a long way to go and much work yet to be done, but it's shitloads better than saying, oh well, that's all in the past, can't go back and change things, we'll just promise not to do it again in the future.
It is an attempt to redress the wrongs done, and to lessen the ongoing damage that has been caused to Maori that is shown in poorer health, educational, and societal outcomes that are still very much in evidence to this day, and very much attributable to the negative effects of colonisation.