The full digital game requires approximately 3.4 GB of storage space on your Nintendo Switch. Release Date: June 30, 2023. How to Safely Update Your Game
Nintendo officially states that "various issues have been addressed to improve the gameplay experience," though specific technical details were not disclosed.
To ensure your game data remains safe and your console stays within warranty, it is highly recommended to update through official channels rather than downloading .rar or .nsp files from third-party sites.