fix: worker_threads API changes a lot

README.md

@@ -23,7 +23,6 @@ Perform async work synchronously in Node.js using `worker_threads`, or `child_pr
 - [Usage](#usage)
   - [Install](#install)
   - [API](#api)
-  - [`Node` compatibility](#node-compatibility)
   - [Envs](#envs)
   - [TypeScript](#typescript)
 - [Benchmark](#benchmark)
@@ -72,10 +71,6 @@ You must make sure:
 1. if `worker_threads` is enabled (by default), the `result` is serialized by [`Structured Clone Algorithm`](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm)
 2. if `child_process` is used, the `result` is serialized by `JSON.stringify`
 
-### `Node` compatibility
-
-`worker_threads` is available from `Node 8.10` with flag `--experimental-worker` and only enabled by default from `Node 12.11`, so you may want to enable it by using `node --experimental-worker` or setting env `NODE_OPTIONS="--experimental-worker"` for better performance.
-
 ### Envs
 
 1. `SYNCKIT_WORKER_THREADS`: whether or not enable `worker_threads`, it's enabled by default, set as `0` to disable

src/index.ts

@@ -30,7 +30,7 @@ try {
 } catch {
   /* istanbul ignore next */
   console.warn(
-    '`worker_threads` is not available in current environment,\nyou may want to enable it by using `node --experimental-worker` or setting env `NODE_OPTIONS="--experimental-worker"` for better performance',
+    '`worker_threads` is not available in current environment, `Node >= 12` is required',
   )
 }