Verified patch notes and platform-specific impact from the official source.
Super Mario Bros. Wonder
Ver. 1.2.1
Apr 15, 2026 · Nintendo Support update tracked by Buffs & Bugs
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What changed for Switch
Pulled from the official patch source. Platform-specific evidence appears only when that platform is explicitly named in the notes.
Switch has specific information in the official patch notes.
Official note“Skip Navigation My Support Dashboard Accounts & Purchases Nintendo Switch 2 Nintendo Switch Nintendo Switch Online Apps & Other Products Service Center How to Update Super Mario Bros.”
Official note“Wonder Nintendo Switch, Nintendo Switch Lite, Nintendo Switch - OLED Model Follow these steps to update Super Mario Bros.”
Quick take
The following updates have been made when playing the game on Nintendo Switch 2:
- General
- Adjustments and fixes have been made to the Nintendo Switch 2 Edition to improve the gameplay experience.
- Past updates
What officially changed
The following updates have been made when playing the game on Nintendo Switch 2:
General
Adjustments and fixes have been made to the Nintendo Switch 2 Edition to improve the gameplay experience.
Past updates
OFFICIAL UPDATE NOTES · NINTENDO SUPPORTWhat officially changedTap to read the full patch notes
The following updates have been made when playing the game on Nintendo Switch 2:
General
Adjustments and fixes have been made to the Nintendo Switch 2 Edition to improve the gameplay experience.
Past updates
What Switch players experienced
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