advice for library authors, specific to renderers and "modes"

[drcmda]

my renderer (based on react-reconciler) opens a new react root

fiber = reconciler.createContainer(root, modes.indexOf(mode), false, null)

currently react-reconciler takes an int: 0=legacy, 1=blocking, 2=concurrent, so i let users specify it https://github.com/pmndrs/react-three-fiber/blob/master/packages/fiber/src/web/index.tsx#L23

it defaults to "blocking" but they can also pick one:

<Canvas mode={legacy|blocking|concurrent}>

my questions are:

1. will this still be the case in react 18 or do we simply create a root and that's that, users that want concurrency opt into it with startTransition
2. if that's not the case and if these three "modes" do stick around, what do we call it? "mode" isn't used by the react team any longer and will it still be three of them?

[acdlite]

In React DOM 18, the "mode" (internal-only concept) is always ConcurrentRoot. We removed the concept of "blocking" mode.

The naming is a bit weird now, but you can think of ConcurrentRoot as React18Root, and LegacyRoot as React17Root.

[acdlite]

But I would suggest removing this API and always choosing ConcurrentRoot for your users (with a major version bump, of course).

[drcmda]

that makes sense, i will remove it, thanks for clarifying!