- Adds ESM build (https://github.com/reduxjs/redux-devtools/pull/997) and switches the default export to a named export in order to ensure that the CommonJS output and the ESM output are [interchangeable](https://rollupjs.org/guide/en/#outputexports):
```diff
- import Serialize from '@redux-devtools/serialize';
+ import { immutable } from '@redux-devtools/serialize';