diff --git a/frontend/index.html b/frontend/index.html
index c256e51..e9a55f2 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -2153,6 +2153,7 @@ async function startCapture() {
         buildTraceMap();
         renderSidePanel();
         renderMessages();
+        el('apdu-detail').innerHTML = `<div class="detail-empty" data-l10n="Click an APDU to see details">${t('Click an APDU to see details')}</div>`;
         updateCaptureButton();
         startPolling();
     } catch (e) {
@@ -2366,6 +2367,7 @@ async function loadSession(id) {
         switchTab('trace');
         updateCaptureButton();
         renderMessages();
+        el('apdu-detail').innerHTML = `<div class="detail-empty" data-l10n="Click an APDU to see details">${t('Click an APDU to see details')}</div>`;
         el('session-name-display').style.display = 'inline';
         el('session-name-display').textContent = t('Session: ') + (data.session.name || '#' + id);
         history.replaceState(null, '', '#session=' + id);
@@ -2617,7 +2619,7 @@ function onFilterChange() {
 }
 
 // ──────────────────── Versioning ────────────────────
-const PWA_VERSION = '1.22.12';
+const PWA_VERSION = '1.22.13';
 const MIN_SERVER_VERSION = '1.0.0';
 
 function parseVersion(v) {
diff --git a/frontend/sw.js b/frontend/sw.js
index f14fc83..15de14c 100644
--- a/frontend/sw.js
+++ b/frontend/sw.js
@@ -1,4 +1,4 @@
-const CACHE = 'simtrace-analyser-v44';
+const CACHE = 'simtrace-analyser-v45';
 
 const PRECACHE = [
     'index.html',
diff --git a/pyproject.toml b/pyproject.toml
index 54e91dc..af9d26b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.backends._legacy:_Backend"
 
 [project]
 name = "simtrace2-pysniff"
-version = "1.22.12"
+version = "1.22.13"
 description = "Python-based sniffing tool for SIMtrace2 hardware (SIM card communication sniffer)"
 readme = {file = "README.md", content-type = "text/markdown"}
 license = {text = "GPL-2.0-or-later"}
diff --git a/simtrace2_pysniff/__init__.py b/simtrace2_pysniff/__init__.py
index 5206746..2d5d18e 100644
--- a/simtrace2_pysniff/__init__.py
+++ b/simtrace2_pysniff/__init__.py
@@ -6,7 +6,7 @@ from .gsmtap import GsmtapSender, GsmtapReceiver
 from .pcap import PcapWriter
 from .dump import FileDumper, format_message
 
-__version__ = '1.22.12'
+__version__ = '1.22.13'
 __all__ = [
     'SniffSession',
     'DeviceDisconnected',
diff --git a/tests/test_pcap_import.py b/tests/test_pcap_import.py
index 34de92e..420c382 100644
--- a/tests/test_pcap_import.py
+++ b/tests/test_pcap_import.py
@@ -224,7 +224,7 @@ class TestImportEndpoint(unittest.TestCase):
 class TestVersion(unittest.TestCase):
     def test_package_version(self):
         from simtrace2_pysniff import __version__
-        self.assertEqual(__version__, '1.22.12')
+        self.assertEqual(__version__, '1.22.13')
 
     def test_status_includes_version(self):
         import os