Begin rewrite to typescript and only React 19 compatibility

.babelrc.json

@@ -0,0 +1,19 @@
+{
+  "presets": [
+    [
+      "@babel/preset-env",
+      {
+        "targets": {
+          "node": "current"
+        }
+      }
+    ],
+    "@babel/preset-typescript",
+    [
+      "@babel/preset-react",
+      {
+        "runtime": "automatic"
+      }
+    ]
+  ]
+}

.changelog/01.txt

@@ -0,0 +1,2 @@
+breaking
+Rewrite to typescript. New opts required. Newer versions of React required

.changelog/02.txt

@@ -0,0 +1,2 @@
+breaking
+Remove main, module, and require fields from package.json

.changelog/03.txt

@@ -0,0 +1,2 @@
+feature
+Re-implement <Parcel /> component

.changelog/04.txt

@@ -0,0 +1,2 @@
+feature
+Support for hydrateRoot

.github/workflows/build_test.yml

@@ -0,0 +1,37 @@
+name: Build, Test, Release
+
+on:
+  push:
+    branches: main
+  pull_request:
+    branches: "*"
+
+jobs:
+  build_lint_test:
+    name: Build and Test
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Pnpm
+        uses: pnpm/action-setup@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: pnpm
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Test
+        run: pnpm test
+
+      - name: Validate
+        run: |
+          pnpm run check-format
+
+      - name: Build
+        run: pnpm run build

.husky/pre-commit

@@ -1,4 +1,2 @@
-#!/usr/bin/env sh
-. "$(dirname -- "$0")/_/husky.sh"
-
-pnpm pretty-quick --staged && pnpm run test && pnpm run lint
+pnpm pretty-quick --staged
+pnpm run test

CHANGELOG.md

@@ -17,11 +17,9 @@
 ### Major Changes
 
 - [#197](https://github.com/single-spa/single-spa-react/pull/197) [`1141959`](https://github.com/single-spa/single-spa-react/commit/1141959915c3a0073623e589b1eebd0891876745) Thanks [@MilanKovacic](https://github.com/MilanKovacic)! - ### Fixed
-
   - Enhanced compatibility with various bundlers and TypeScript `moduleResolution` strategies. The package's export patterns have been refined to address issues previously encountered with different bundling tools, ensuring more consistent and reliable integration across diverse build environments. Additionally, TypeScript type definitions have been improved, enhancing type safety and developer experience in varied TypeScript setups.
 
   ### BREAKING CHANGES
-
   - The changes in export patterns / types may require updates in how projects import from `single-spa-react/*`.
 
 ### Patch Changes

LICENSE

@@ -1,6 +1,4 @@
-The MIT License (MIT)
-
-Copyright (c) 2015 Joel Denning
+Copyright (c) 2025 Jolyn Denning
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

jest.config.ts

@@ -0,0 +1,8 @@
+import type { Config } from "jest";
+
+const config: Config = {
+  extensionsToTreatAsEsm: [".ts", ".tsx"],
+  testEnvironment: "jsdom",
+};
+
+export default config;