The aerotrain at Kuala Lumpur International Airport (KLIA) will undergo a software upgrade after accumulating 20,000 operational hours. This upgrade aims to enhance the system’s performance and reliability for passengers travelling between the main terminal and the satellite building. To minimize disruption during the upgrade and subsequent testing phases, a bus service will be implemented. This bus service will ensure continuous passenger transfers between the terminal and satellite building throughout the period. Airport authorities are committed to maintaining uninterrupted connectivity for travellers. The duration of the upgrade and testing has not been disclosed, but officials have assured the public of a swift and efficient process. Passengers are advised to follow airport signage and announcements for guidance during this time.