Hi Sam,
Yes my old post was 3 years old, but there was also a thread this year (Kodi addons repository not up to date) and from glancing across the forums I got the impression that addons were more often missing or being out of sync.
The mirror mirrors.dotsrc.org is still behind (but I understand it is out of OSMC’s control):
ftp.fau.de was behind too when I checked, I wish I had made a screenshot (and I did from desktop, not from OSMC, making caching a less likely cause). Thankfully this one seems to be up-to-date now.
I resolved the issue on my end by un-hijacking the repository.xbmc.org package and list the original mirrors.kodi.tv url’s there, hacky and probably temporary but it was enough to trigger a bunch of updates. The mentioned commit is welcomed a lot! Hopefully less hassle for you, me, and everyone.
Thanks as always,
Thomas