No it's not. Just asked my friends in China and tested with https://www.comparitech.com/privacy-security-tools/blockedin... (try with github.com and reddit.com). The Chinese are heavily invested in GitHub, so if/when they do ban it then you can be sure it won't go unnoticed.
GitHub has been banned in the past and yes it didn't go unnoticed ( https://news.ycombinator.com/item?id=5090700 ), but that's not much consolation when you suddenly can't access it. Currently they mostly don't block it ( https://en.greatfire.org/https/github.com ), but if GitHub ever became popular among ordinary citizens (as opposed to programmers) downloading e.g. censorship circumvention tools from GitHub, they'd probably find a way to mirror most git repos, except those they want to block.
abc-xyz|7 years ago
yorwba|7 years ago