docs: update compatability chart

README.md

@@ -250,16 +250,32 @@ It's best to run Pact verification tests as part of your unit testing suite, so
 
 <details><summary>Specification Compatibility</summary>
 
-| Version | Stable | [Spec] Compatibility | Install            |
-| ------- | ------ | -------------------- | ------------------ |
-| 11.x.x  | Yes    | 2, 3, 4              | See [installation] |
-| 10.x.x  | Yes    | 2, 3, 4              | See [installation] |
-| 9.x.x   | Yes    | 2, 3\*               | [9xx]              |
+| Version  | Stable | [Spec] Compatibility | Install            |
+| -------  | ------ | -------------------- | ------------------ |
+| 11.x.x + | Yes    | 2, 3, 4              | See [installation] |
+| 10.x.x   | Yes    | 2, 3, 4              | See [installation] |
+| 9.x.x    | Yes    | 2, 3\*               | [9xx]              |
 
 _\*_ v3 support is limited to the subset of functionality required to enable language inter-operable [Message support].
 
 </details>
 
+<details><summary>Supported Platforms</summary>
+
+| OS            | Architecture | Supported  | Pact-JS Version  |
+| ------------- | ------------ | ---------  | ---------------- |
+| MacOS         | x86_64       | ✅         | All              |
+| MacOS         | arm64        | ✅         | 9.x +            |
+| Linux (libc)  | x86_64       | ✅         | All              |
+| Linux (libc)  | arm64        | ✅         | 10.x +           |
+| Linux (musl)  | x86_64       | ✅         | 13.x +           |
+| Linux (musl)  | arm64        | ✅         | 13.x +           |
+| Windows       | x86_64       | ✅         | All              |
+| Windows       | x86          | ❌         | 9.x -            |
+| Windows       | arm64        | ❌         | -                |
+
+</details>
+
 ## Roadmap
 
 The [roadmap](https://docs.pact.io/roadmap/) for Pact and Pact JS is outlined on our main website.