I find it relevant to mention that I found an Unreachable error in Julia 1.0.5 and git-bisected the commit that solved it (because I knew that Julia 1.4 did not give the same error). I did not find the issue/PR I made to Julia (asking to backport the fix, as support for 1.0.5 was, uhhh, suggested to exist, maybe the best term). The development team said to me that was better to me to just update the Julia version, that the backport would not happen, and that the other non-LTS versions will probably stay forever archived in Julia page, so if you really need to replicate some old code they can just be downloaded from there. For me it was the better option, in fact, there are some thing I am doing now that would be probably a pain in the ass to do with Julia 1.0.5, so I think what they suggested was indeed the best course of action, but at the same time, I would point that relying too much in the said long-term support for version 1.0.5 is not so advisable.