Mitchell's innings stood out on a testing pitch as he reached a seventh ODI century despite batting a groin injury.
Ish Sodhi's 3-34 moved the New Zealand leg-spinner to third on the all-time list of T20 international wicket-takers with 156.
The 35-year-old batsman has played 93 T20s for his country since making his debut against Zimbabwe in 2011, captaining the side on 75 occasions and leading them to the World Cup final in 2021 and semi-finals in 2016 and 2022.
Batting great Kane Williamson says a changed "life situation" will reduce his availability for New Zealand as he prepares for his first international match since March.
In April 2022, an assured Ross Taylor was ready to leave his playing days behind him.
Taylor played 450 times for New Zealand across all three formats, including 112 Tests.
Walter, 49, was most recently coach of South Africa's one-day international and Twenty20 teams but knows New Zealand cricket well after stints in charge of provincial teams as well as his time overseeing a Black Caps "A" tour of India in 2022.
Stead said the World Test Championship triumph in 2021 and New Zealand's 3-0 sweep of India on the sub-continent last year were the highlights of his time in charge.
Gary Stead announced Tuesday he will step down as New Zealand's white-ball cricket coach and is considering his future with the Test team.
Walter, 49, was most recently coach of South Africa's one-day international and Twenty20 teams but knows New Zealand cricket well after stints in charge of provincial teams as well as his time overseeing a Black Caps "A" tour of India in 2022.
Stead said the World Test Championship triumph in 2021 and New Zealand's 3-0 sweep of India on the sub-continent last year were the highlights of his time in charge.
Gary Stead announced Tuesday he will step down as New Zealand's white-ball cricket coach and is considering his future with the Test team.
If South Africa beat New Zealand to reach Sunday's decider, they will at least know by then if they will take on India in Dubai, or Australia in Lahore.
The Champions Trophy is the first major cricket event hosted by Pakistan in nearly three decades and is regarded as second only to the World Cup in the one-day game.
"As a young kid it was always my dream to play for New Zealand and I feel incredibly lucky and proud to have played 367 games for my country," Guptill said in an statement to New Zealand Cricket (NZC).
Santner, who has played 107 one-day internationals and 106 Twenty20 internationals, will begin his tenure with a three-match home ODI series against Sri Lanka from December 28.
The 34-year-old failed a drugs test after a domestic T20 game in January.
The White Ferns’ received a warm welcome from friends, family and fans when they landed at Christchurch airport on Friday, with the T20 World Cup trophy proudly on display.
Santner will have a good mix of youth and experience in the squad with Nathan Smith and wicketkeeper-batter Mitch Hay being called up to the squad.
