Options for older browser support in v10 (or continuing to use v9 somehow?)

‍♂ Question

I'm currently working on upgrading to RTK 2.0 - which brings with it an upgrade to immer v10.

Our application needs to support older browsers like smart TVs which tend to bundle pretty old versions of chrome, so we continue to compile down to ES5.

Do I have any options for making this work?

I see that v10 dropped support for the ES5 fallback, but it's unclear to me whether I can use polyfills or a v9 override to get around this.

The FAQ entry is rather terse on this point: https://immerjs.github.io/immer/installation/#immer-on-older-javascript-environments

Link to repro

n/a

Environment

We only accept questions against the latest Immer version.

• Immer version: 9 and 10