The license is specific to GitHub.
However, we don't want this to be a competitive advantage for GitHub; developers should choose GitHub because it is better, not because it has a license from OFAC. So we have taken it upon ourselves to advocate for OFAC to allow developers in Iran and other sanctioned countries greater access to all platforms, and we will continue to do so.
This kind of change would likely require an update to OFAC’s regulations, the issuance of an updated general license, or the issuance of formal guidance from the agency. We hope that OFAC’s issuance of a license to GitHub will help pave the way for broader access to similar platforms.