diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f142e2..87ea7a3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,23 @@ All notable changes per version. Format based on [Keep a Changelog](https://keep
 
 ---
 
+## [2.1.0] — 2026-04-16
+
+### Added
+- **Calculator Tab-System:** 6 Modi über Tab-Leiste erreichbar (Standard, Scientific, Unit, SAT, FAC, STA)
+- **Scientific-Modus:** Wurzel, Potenz, Pi, Euler, Vorzeichen-Wechsel + Formel-Helfer (Kreis, Pythagoras, Prozent, Temperatur)
+- **Unit-Converter:** 6 Kategorien (Länge, Gewicht, Temperatur, Volumen, Geschwindigkeit, Fläche) mit Live-Konvertierung und Swap
+- **Satisfactory Calculator:** Items/Min, Overclock-Power (Exponent 1.321928), Maschinen-Rechner
+- **Factorio Calculator:** Assembler-Ratios, Belt-Throughput, Maschinen-Rechner mit Belt-Empfehlung
+- **Stationeers Calculator:** Idealgas (PV=nRT), Furnace/Verbrennung, Solar/Batterie-Dimensionierung, Atmosphären-Mixer
+
+### Changed
+- Parser um `^` (Potenz, rechts-assoziativ) und `sqrt()` erweitert
+- Calculator-Widget Auto-Resize auf 320×480 für komplexe Modi
+- ~110 neue i18n-Keys (DE + EN)
+
+---
+
 ### v2.0.1 — 16.04.2026
 
 #### Security
diff --git a/manifest.firefox.json b/manifest.firefox.json
index ab79548..b16fd0d 100644
--- a/manifest.firefox.json
+++ b/manifest.firefox.json
@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "name": "__MSG_extName__",
   "default_locale": "en",
-  "version": "2.0.1",
+  "version": "2.1.0",
   "description": "__MSG_extDesc__",
   "author": "Hellion Online Media - Florian Wathling",
   "homepage_url": "https://hellion-media.de",
diff --git a/manifest.json b/manifest.json
index 28fe544..b750ad5 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "name": "__MSG_extName__",
   "default_locale": "en",
-  "version": "2.0.1",
+  "version": "2.1.0",
   "description": "__MSG_extDesc__",
   "author": "Hellion Online Media - Florian Wathling",
   "homepage_url": "https://hellion-media.de",
diff --git a/manifest.opera.json b/manifest.opera.json
index ae49789..208dc20 100644
--- a/manifest.opera.json
+++ b/manifest.opera.json
@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "name": "__MSG_extName__",
   "default_locale": "en",
-  "version": "2.0.1",
+  "version": "2.1.0",
   "description": "__MSG_extDesc__",
   "author": "Hellion Online Media - Florian Wathling",
   "homepage_url": "https://hellion-media.de",
diff --git a/newtab.html b/newtab.html
index 48f05d2..8877e6e 100644
--- a/newtab.html
+++ b/newtab.html
@@ -223,7 +223,7 @@
     <div class="panel-footer">
       <div class="about-block">
         <div class="about-logo" data-i18n="about.title">⬡ HELLION NEWTAB</div>
-        <div class="about-version">Version 2.0.1 · by Hellion Online Media</div>
+        <div class="about-version">Version 2.1.0 · by Hellion Online Media</div>
 
         <div class="about-links">
           <a href="https://hellion-media.de/impressum" target="_blank" class="about-link">
diff --git a/src/js/app.js b/src/js/app.js
index 9e143e4..8f01e00 100644
--- a/src/js/app.js
+++ b/src/js/app.js
@@ -105,7 +105,7 @@ async function checkBackupReminder() {
     const notesData = (widgetData && Array.isArray(widgetData.notes)) ? widgetData.notes : [];
     const calcHistory = (widgetData && widgetData.calculator) ? widgetData.calculator.history || [] : [];
     const timerPresets = (widgetData && widgetData.timer) ? widgetData.timer.presets || [] : [];
-    const data = { version: '2.0.1', exported: new Date().toISOString(), boards, settings, notes: notesData, calculator: calcHistory, timerPresets };
+    const data = { version: '2.1.0', exported: new Date().toISOString(), boards, settings, notes: notesData, calculator: calcHistory, timerPresets };
     const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
     const url  = URL.createObjectURL(blob);
     const a    = document.createElement('a');
diff --git a/src/js/data.js b/src/js/data.js
index 4b7c14a..5fd2a8f 100644
--- a/src/js/data.js
+++ b/src/js/data.js
@@ -28,7 +28,7 @@ function initDataButtons() {
   btnExport.addEventListener('click', async () => {
     const widgetData = await Store.get('widgetStates');
     const data = {
-      version: '2.0.1',
+      version: '2.1.0',
       exported: new Date().toISOString(),
       boards,
       settings,