[rickyvetter]

I'm not OP but I work on ReasonReact. I think these are excellent questions - thanks for asking despite your worries about tone.

1. I would not classify this release as huge by most definitions, but I do think it is by a couple. First - it has many more contributors (both in code and on issues) than the 0.7 release and that means better reflection of community desires and direction. Second - it is the first release that forces 7.x BuckleScript which sets up ReasonReact for optimizations that would be impossible otherwise. Better support for `lazy`, `context`, and more.

2. BuckleScript is a true fork of OCaml and that comes with tradeoffs. On the plus you get JS interop you cannot achieve with JSOO (records and modules compiling to objects, https://bucklescript.github.io/blog/2020/03/26/generalize-un...). On the downside, active effort must be made and prioritized to upstream and maintain course with OCaml proper.

2a. Reason is being used in production at Facebook today, but Facebook also employs many of the people working on it. I personally consider it to be in a stable state for production use, but same as any technology I think it would be foolish to adopt Reason without better understanding the reason it exists, the problems it's trying to solve, and the drawbacks it has.