Comment by mikemcquaid

I left GitHub earlier this year after a decade. I’ve seen mockups, hack week projects and proof of concepts of this for the last 5 years (at least). A lot of engineers there knew this is the future that PRs need but GitHub at this point seems organisationally incapable of delivering these sorts of large improvements (Microsoft is perhaps partly but definitely not wholly to blame for this). Instead, they are midway through porting Rails views to use React, keeping most pages looking identical while introducing bugs and regressing previous usability improvements on a weekly basis. A real shame.