I have noticed other open update requests in the issue tracker here. If builds are not happening automatically, perhaps a way to get in touch with the maintainers to ask for new builds is necessary? This repository does not seem like the ideal place to report upstream updates to LOS, but the bug-reporting flowchart directs here.
LineageOS is releasing LineageOS 17.1 for these two devices. Currently the dumpling build is up, but not on l4m.
I have noticed other open update requests in the issue tracker here. If builds are not happening automatically, perhaps a way to get in touch with the maintainers to ask for new builds is necessary? This repository does not seem like the ideal place to report upstream updates to LOS, but the bug-reporting flowchart directs here.