@sgibson91 Thank you. I already tried some commits to revert the julia dependency to a single entry (e.g. Julia=“1.3”) but I am left with the same problem… it is like somewhere it is cached ???
EDIT: Sorry, I was editing the wrong Project.toml (the one in documentation)
I can confirm that changing the julia requirement to a single entry (e.g. julia = "1.4") make mybinder working, so the problem seems the one outlined by @minrk on the find_semver_match function… could support be added to multiple julia versions ?