diff --git a/CHANGELOG.md b/CHANGELOG.md
index 920161d..53a3bfc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ Format basiert auf [Keep a Changelog](https://keepachangelog.com/de/1.1.0/).
 ## [Unreleased]
 
 ### Store-Paket 1.0.7.0 (T-20260928-288887892, 2026-09-28)
+- Laufzeit, Über-Dialog und Workspace-Export lesen die Version jetzt aus `pyproject.toml`; der Paketbau prüft die Übereinstimmung mit `store_package.json`.
 - Desktop-, Fenster-, EXE-, Mobile- und Legacy-Icons nutzen jetzt das vom Nutzer ausgewählte neue Store-Kachelmotiv. `scripts/gen_store_icons.py` erzeugt daraus alle benötigten Größen einschließlich der MSIX-`targetsize`- und `altform`-Varianten.
 - `scripts/build_store_msix.ps1` erzeugt die Icons vor dem PyInstaller-Build, prüft den Quellbaum und ruft den Store-Builder mit Paket-Gate auf. Dadurch wird `resources.pri` in das MSIX aufgenommen.
 - Der Store-Readiness-Check prüft jetzt den versionierten Paketpfad `releases/windowsstore/v1.0.7/ExplorerPro.msix`.
diff --git a/EXPORTFORMAT.md b/EXPORTFORMAT.md
index fa13596..1f1ffca 100644
--- a/EXPORTFORMAT.md
+++ b/EXPORTFORMAT.md
@@ -36,7 +36,7 @@ Nicht exportieren:
   "created_at": "2026-07-22T00:00:00+00:00",
   "app": {
     "name": "ExplorerPro",
-    "version": "1.0.0",
+    "version": "1.0.7",
     "platform": "windows"
   },
   "export_options": {
diff --git a/ExplorerPro.spec b/ExplorerPro.spec
index 0fccbe9..57470d8 100644
--- a/ExplorerPro.spec
+++ b/ExplorerPro.spec
@@ -12,6 +12,7 @@ a = Analysis(
     pathex=[str(src_dir), str(project_root)],
     binaries=[],
     datas=[
+        (str(project_root / 'pyproject.toml'), '.'),
         (str(icon_file), '.'),
         (str(project_root / 'assets'), 'assets'),
         (str(project_root / 'locales'), 'locales'),
diff --git a/scripts/build_store_msix.ps1 b/scripts/build_store_msix.ps1
index 63cf3c8..484c3f5 100644
--- a/scripts/build_store_msix.ps1
+++ b/scripts/build_store_msix.ps1
@@ -24,6 +24,10 @@ if ($CheckToolsOnly) {
 }
 $config = Get-Content (Join-Path $projectRoot 'store_package.json') -Raw | ConvertFrom-Json
 $releaseVersion = $config.version -replace '\.0$', ''
+$projectVersion = & python -c "import sys; sys.path.insert(0, r'$projectRoot\src'); from version import __version__; print(__version__)"
+if ($LASTEXITCODE -ne 0 -or $releaseVersion -ne $projectVersion) {
+    throw "Store package version $($config.version) differs from pyproject.toml version $projectVersion."
+}
 $output = Join-Path $projectRoot "releases\windowsstore\v$releaseVersion\ExplorerPro.msix"
 $exe = Join-Path $projectRoot 'dist\ExplorerPro\ExplorerPro.exe'
 
diff --git a/src/__init__.py b/src/__init__.py
index 06fec0d..fbc8acf 100644
--- a/src/__init__.py
+++ b/src/__init__.py
@@ -4,10 +4,9 @@
 ExplorerPro - Intelligenter Datei-Explorer
 Fusion aus: ProFiler, PythonBox, ProSync, AmpelTool, SoftwareCenter, ProfiPrompt
 
-Version: 0.1.0
 """
 
-__version__ = "0.1.0"
+from .version import __version__ as __version__
 __author__ = "ExplorerPro Team"
 
 from .app import ExplorerProApp
diff --git a/src/core/export_service.py b/src/core/export_service.py
index 9321c48..0a3c3bd 100644
--- a/src/core/export_service.py
+++ b/src/core/export_service.py
@@ -4,7 +4,7 @@
 from pathlib import Path
 from typing import Any
 
-APP_VERSION = "1.0.0"
+from version import __version__
 SCHEMA = "explorerpro-workspace-v1"
 
 # Nur Muster die standardmäßig aktiv sind (default=True in privacy_monitor.py)
@@ -46,7 +46,7 @@ def build_export(
             "created_at": datetime.now(timezone.utc).isoformat(),
             "app": {
                 "name": "ExplorerPro",
-                "version": APP_VERSION,
+                "version": __version__,
                 "platform": platform.system().lower(),
             },
             "export_options": {
diff --git a/src/gui/main_window.py b/src/gui/main_window.py
index 8e5474a..1ac5f80 100644
--- a/src/gui/main_window.py
+++ b/src/gui/main_window.py
@@ -21,6 +21,7 @@
 from .browser.file_browser import FileBrowser
 from .preview.preview_panel import PreviewPanel
 from .status_bar import StatusBarWidget
+from version import __version__
 
 
 class SearchToolBar(QToolBar):
@@ -776,8 +777,8 @@ def _show_about(self):
         QMessageBox.about(
             self,
             "Über ExplorerPro",
-            """<h2>ExplorerPro</h2>
-            <p>Version 1.0.0</p>
+            f"""<h2>ExplorerPro</h2>
+            <p>Version {__version__}</p>
             <p>Ein intelligenter Datei-Explorer mit:</p>
             <ul>
                 <li>Datenbank-gestützter Volltextsuche</li>
diff --git a/src/main.py b/src/main.py
index 6ebacc5..63ea7ab 100644
--- a/src/main.py
+++ b/src/main.py
@@ -4,7 +4,6 @@
 ExplorerPro - Ein intelligenter Datei-Explorer
 Fusion aus ProFiler, PythonBox, ProSync, AmpelTool, SoftwareCenter, ProfiPrompt
 
-Version: 0.1.0
 """
 
 import sys
@@ -27,6 +26,7 @@
 from PySide6.QtGui import QIcon
 
 from app import ExplorerProApp
+from version import __version__
 
 
 def load_app_icon() -> QIcon:
@@ -61,6 +61,10 @@ def install_qt_translations(app: QApplication, lang: str):
     return None
 
 
+def set_application_version(app: QApplication) -> None:
+    app.setApplicationVersion(__version__)
+
+
 def main():
     """Haupteinstiegspunkt für ExplorerPro"""
     # High DPI Support
@@ -73,7 +77,7 @@ def main():
     app.setOrganizationName("ExplorerPro")
     from translator import get_translator
     install_qt_translations(app, get_translator().get_language())
-    app.setApplicationVersion("0.1.0")
+    set_application_version(app)
     icon = load_app_icon()
     if not icon.isNull():
         app.setWindowIcon(icon)
diff --git a/src/version.py b/src/version.py
new file mode 100644
index 0000000..7102623
--- /dev/null
+++ b/src/version.py
@@ -0,0 +1,25 @@
+"""Read the application version from the project metadata."""
+
+import re
+import sys
+from pathlib import Path
+
+
+def _project_metadata_path() -> Path:
+    if getattr(sys, "frozen", False):
+        return Path(sys._MEIPASS) / "pyproject.toml"
+    return Path(__file__).resolve().parents[1] / "pyproject.toml"
+
+
+def get_version() -> str:
+    metadata = _project_metadata_path().read_text(encoding="utf-8")
+    project_section = re.search(r"(?ms)^\[project\]\s*\n(.*?)(?=^\[|\Z)", metadata)
+    if project_section is None:
+        raise ValueError("pyproject.toml has no [project] section")
+    match = re.search(r'^version\s*=\s*"([^\"]+)"\s*$', project_section.group(1), re.MULTILINE)
+    if match is None:
+        raise ValueError("pyproject.toml has no project version")
+    return match.group(1)
+
+
+__version__ = get_version()
diff --git a/tests/test_release_smoke.py b/tests/test_release_smoke.py
index 2be5142..2b6fa8d 100644
--- a/tests/test_release_smoke.py
+++ b/tests/test_release_smoke.py
@@ -10,7 +10,7 @@
 
 
 PROJECT_ROOT = Path(__file__).resolve().parents[1]
-RELEASE_EXE = PROJECT_ROOT / "releases" / "v1.0.0" / "ExplorerPro" / "ExplorerPro.exe"
+RELEASE_EXE = PROJECT_ROOT / "dist" / "ExplorerPro" / "ExplorerPro.exe"
 
 
 @pytest.mark.skipif(sys.platform != "win32", reason="Release-EXE-Smoke ist Windows-spezifisch")
diff --git a/tests/test_version_single_source.py b/tests/test_version_single_source.py
new file mode 100644
index 0000000..ba6a182
--- /dev/null
+++ b/tests/test_version_single_source.py
@@ -0,0 +1,26 @@
+"""The packaged and displayed versions follow pyproject.toml."""
+
+import json
+from pathlib import Path
+
+from PySide6.QtWidgets import QApplication, QMessageBox
+
+from src import __version__
+from src.gui.main_window import MainWindow
+from src.main import set_application_version
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def test_runtime_about_and_package_versions_match(monkeypatch):
+    app = QApplication.instance() or QApplication([])
+    set_application_version(app)
+
+    captured = {}
+    monkeypatch.setattr(QMessageBox, "about", lambda _parent, _title, body: captured.setdefault("body", body))
+    MainWindow._show_about(None)
+
+    package_version = json.loads((ROOT / "store_package.json").read_text(encoding="utf-8"))["version"]
+    assert app.applicationVersion() == __version__ == package_version.removesuffix(".0")
+    assert f"Version {__version__}" in captured["body"]