I checked for any available updates yesterday, and this (linux-u-boot-helios64-current 21.08.1) was applied.

Can't find what was new or if it was only a version bump.

By the way, nothing broke after the update.

Probably a mistake since Armbian 21.08 has not been released yet. Should not cause harm though.

Thank you @Werner

For future reference, the *-u-boot* packages contain the uboot (bootloader). When installed it puts some files into /usr/lib/u-boot  and /usr/lib/<packagename>

These files can be used to install / update the actual uboot on the box/board, although the process is not started automatically as updating uboot is mostly unneccessary and might lead to problems only fixable with serial uart access.

 

For actually updating the bootloader the armbian-config utility can be used. (Or check what the platform install file in /usr/lib/u-boot does and do it manually).

 

If you receive updates from future version you might be on 'nightly' branch / mode.