Chore/update multiple major versions

.changeset/gentle-webs-play.md

@@ -0,0 +1,11 @@
+---
+'@code-obos/i18n-tools': major
+---
+
+legger til punktum seperator for å håndtere kryssplatform av windows og mac.
+
+WHAT: Oppdaterer pakken med avhengigheter, node 24.
+
+WHY: Utdaterte pakker.
+
+HOW: Pakken endrer ting internt fra '/' til '.' i selve seperator i lut.ts, burde ikke ha noen praktisk betydning for bruk.

.github/workflows/master.yaml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [ 18, 20, 22 ]
+        node: [ 24 ]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4

README.md

@@ -10,6 +10,16 @@ The project uses tools from [FormatJS](https://formatjs.io/), if your project us
 **Install in project:**
 `npm install @code-obos/i18n-tools --save-dev`
 
+## Breaking Changes (Dependency Modernization)
+
+The latest dependency upgrade introduces breaking changes that must be treated as a major release:
+
+1. The package now runs as ESM (`"type": "module"`).
+2. Node.js must be modern enough for the upgraded dependency set (recommended: active LTS).
+3. `@formatjs/intl` peer dependency is upgraded from `^2.8.0` to `^4.1.12`.
+
+These changes do not alter the expected CLI output behavior in this repository (verified by tests), but they can affect downstream integrations that depend on CommonJS behavior or older FormatJS versions.
+
 ## Usage
 
 ```shell

i18n-tool

@@ -1,2 +1,2 @@
 #!/usr/bin/env node
-require('./lib/index.js');
+import './lib/index.js';