fix(platform): add support in @analogjs/platform for older Angular ve…

…rsions (#1088)

apps/docs-app/docs/guides/compatibility.md

@@ -12,9 +12,9 @@ The table shows the minimum version of Nx, the supported Angular version, and th
 | ------------------ | --------------- | -------------- | ------------ |
 | 18.0.0             | ^17.0.0         | **latest**     | ^5.0.0       |
 | 17.0.0             | ^17.0.0         | **latest**     | ^5.0.0       |
-| 16.1.0             | ^16.1.0         | **~1.1.0**     | ^5.0.0       |
-| 16.0.0             | ~15.2.X         | **~1.1.0**     | ^5.0.0       |
-| 15.2.0             | ~15.2.X         | **~1.1.0**     | ^5.0.0       |
+| 16.1.0             | ^16.1.0         | **latest**     | ^5.0.0       |
+| 16.0.0             | ~15.2.X         | **latest**     | ^5.0.0       |
+| 15.2.0             | ~15.2.X         | **latest**     | ^5.0.0       |
 
 Additionally, you can check this [guide from Nx](https://nx.dev/packages/angular/documents/angular-nx-version-matrix)
 to learn more about Nx and Angular compatibility.

apps/docs-app/docs/guides/migrating.md

@@ -5,6 +5,8 @@ import TabItem from '@theme/TabItem';
 
 An existing Angular Single Page Application can be configured to use Analog using a schematic/generator for Angular CLI or Nx workspaces.
 
+> Analog is compatible with Angular v15 and above.
+
 ## Using a Schematic/Generator
 
 First, install the `@analogjs/platform` package:

packages/platform/src/lib/router-plugin.ts

@@ -1,3 +1,4 @@
+import { VERSION } from '@angular/compiler-cli';
 import { normalizePath, Plugin } from 'vite';
 
 /**
@@ -36,7 +37,9 @@ export function routerPlugin(): Plugin[] {
             include: [
               '@angular/common',
               '@angular/common/http',
-              '@angular/core/rxjs-interop',
+              ...(Number(VERSION.major) > 15
+                ? ['@angular/core/rxjs-interop']
+                : []),
             ],
             exclude: ['@angular/platform-server', '@analogjs/router'],
           },