The first versions of images for Raspberry and Banana Pi have Linux updates enabled. If they have access to Linux repositories they will dispaly the message informing about a new OS version being available.
The updates were disabled in Banana Pi image ICU-Web-Panel-BPi-M2B_1.2.2-gi-1e5b305.zip released on 06/11/2024. Write the new image to the SD card installed in the unit to block the updates.