Use of XHP at Facebook

[connorgurney]

Given the recent redesign of Facebook, how are you using XHP now?

[fredemmott]

Non-React parts are still primarily XHP-based (including many internal tools), though closer to xhp-lib v3 than v4. I expect the internal usage to become closer to v4 over time - I consider the open source xhp-lib to be representative of where Facebook should want to be.

[connorgurney]

Thanks, Fred! Apologies to open this as an issue, but I wasn't sure where else to ask.