A lot of times the creators/maintainers of a project just haven't put any effort into 'upgrading' stuff. Whether it's a newer version of a language, library, operating system...
Some people will use any excuse to not have to change. Once in a while it's because they are genuinely too busy, but that just signals other issues.
Some people will use any excuse to not have to change. Once in a while it's because they are genuinely too busy, but that just signals other issues.