Tim Southee was only selected for the first T20I, while
Trent Boult was selected for the last two T20Is in New Zealand's squad. On 18 February 2024,
Matt Henry and
Tim Seifert were ruled out of T20I series due to injuries, with
Ben Sears and
Will Young were named their respective replacements. On 24 February 2024,
Chad Bowes was added to New Zealand's squad for the last T20I.
Devon Conway was ruled out from third T20I due to injury.
Jacob Duffy and Tim Seifert, who was ruled out earlier, passed a fitness test, added to the New Zealand's squad. On 17 February 2024,
Aaron Hardie replaced injured
Marcus Stoinis in the Australia's T20I squad. However, the following day, Hardie was ruled out due to an injury, and replaced by
Spencer Johnson in Australia's T20I squad. On 24 February 2024,
David Warner was ruled out from third T20I due to injury. On 27 February 2024,
Neil Wagner announced his retirement from international cricket. On 28 February 2024, Devon Conway was ruled out of the first Test due to left thumb injury.
Henry Nicholls was named as his replacement. On 4 March 2024, Conway was also ruled out of the second test, and
Ben Sears was added to New Zealand's Test squad as a replacement for
William O'Rourke who was ruled out due to hamstring injury. ==T20I series==