Hi all, just wanted to make a quick-mention that package maintainers were encountering some compile issues with `boost` 1.63 and `cpp-netlib` (I think). Details here: https://github.com/facebook/osquery/issues/2888 Seems like the `::optional` APIs changed in 1.63. If this is not on anyone's radar, totally cool. If it is an issue it's not high-pri.