GL-MT6000 bootloader version

Have not found a command to use to check the bootloader version. What command can be used to verify the bootloader version?

Boot it, and watch it using serial, or run strings on the mtd from within Openwrt.

Boot recovery webpage might show it too, but it's only a guess.

Using a serial port is not realistic for an everyday option. Just looking for a software solution.

uboot? copy and open fip partition, then search for 2022 or 2023 or 2024

Every day, you think it changes on every reboot ?

You already received a non-serial solution, anything wrong with it ?