diff --git a/website/.eleventy.js b/website/.eleventy.js
index fd0bda5..faa74fb 100644
--- a/website/.eleventy.js
+++ b/website/.eleventy.js
@@ -28,6 +28,10 @@ function rewriteManualLinks(content, lang) {
 
 module.exports = function (eleventyConfig) {
 
+    eleventyConfig.addFilter("dateToIso", function (dateObj) {
+        return new Date(dateObj).toISOString().split("T")[0];
+    });
+
     eleventyConfig.addFilter("dateToRfc822", function (dateObj) {
         return new Date(dateObj).toUTCString();
     });
diff --git a/website/_site/download/index.html b/website/_site/download/index.html
index bc868d0..71db163 100644
--- a/website/_site/download/index.html
+++ b/website/_site/download/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="Download KST4Contest">
   <meta name="twitter:description" content="Download KST4Contest releases for Windows, Linux and macOS.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/faq/index.html b/website/_site/faq/index.html
index 7908bc4..bf8b0ee 100644
--- a/website/_site/faq/index.html
+++ b/website/_site/faq/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="KST4Contest FAQ">
   <meta name="twitter:description" content="Frequently asked questions about KST4Contest, ON4KST contest operation, AirScout integration and VHF/UHF/SHF contest workflow.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/features/airscout/index.html b/website/_site/features/airscout/index.html
index a3b4335..22e9378 100644
--- a/website/_site/features/airscout/index.html
+++ b/website/_site/features/airscout/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="AirScout Integration">
   <meta name="twitter:description" content="AirScout information helps operators evaluate AP windows, aircraft scatter timing and candidate stations during VHF/UHF/SHF contests.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/features/dual-chat/index.html b/website/_site/features/dual-chat/index.html
index 9c540a6..413c8a7 100644
--- a/website/_site/features/dual-chat/index.html
+++ b/website/_site/features/dual-chat/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="Dual Chat Categories">
   <meta name="twitter:description" content="Dual category support gives contest operators better overview when working across multiple ON4KST chat rooms.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/features/dx-cluster/index.html b/website/_site/features/dx-cluster/index.html
index d74d3c2..70cfa68 100644
--- a/website/_site/features/dx-cluster/index.html
+++ b/website/_site/features/dx-cluster/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="DXCluster Server">
   <meta name="twitter:description" content="KST4Contest includes DXCluster functionality to support situational awareness during contest operation.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/features/index.html b/website/_site/features/index.html
index 16d6193..37a7a61 100644
--- a/website/_site/features/index.html
+++ b/website/_site/features/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="KST4Contest Features">
   <meta name="twitter:description" content="Contest-optimized ON4KST features for VHF, UHF and SHF operation.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/features/log-sync/index.html b/website/_site/features/log-sync/index.html
index ce15a3e..470706c 100644
--- a/website/_site/features/log-sync/index.html
+++ b/website/_site/features/log-sync/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="Log Synchronization">
   <meta name="twitter:description" content="Log synchronization helps KST4Contest understand worked stations, active bands and contest context.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/features/macros/index.html b/website/_site/features/macros/index.html
index d16b0d3..43491a6 100644
--- a/website/_site/features/macros/index.html
+++ b/website/_site/features/macros/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="Macros and Variables">
   <meta name="twitter:description" content="Macros reduce repetitive typing and help operators respond quickly during active ON4KST contest sessions.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/features/priority-score/index.html b/website/_site/features/priority-score/index.html
index 0a8489e..a106d83 100644
--- a/website/_site/features/priority-score/index.html
+++ b/website/_site/features/priority-score/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="Priority Score System">
   <meta name="twitter:description" content="KST4Contest ranks stations by activity, direction, sked context, band information, QRG hints and operator workflow signals.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/features/sked-reminder/index.html b/website/_site/features/sked-reminder/index.html
index 6cf42a2..79f11b8 100644
--- a/website/_site/features/sked-reminder/index.html
+++ b/website/_site/features/sked-reminder/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="Sked Reminder">
   <meta name="twitter:description" content="KST4Contest keeps skeds in focus while the operator handles chat traffic, logging, bands and aircraft scatter timing.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/features/timeline/index.html b/website/_site/features/timeline/index.html
index 58da5ef..bf725e0 100644
--- a/website/_site/features/timeline/index.html
+++ b/website/_site/features/timeline/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="Timeline View">
   <meta name="twitter:description" content="The timeline view helps operators understand short propagation windows and candidate timing during active contest operation.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/index.html b/website/_site/index.html
index b550952..785bdc9 100644
--- a/website/_site/index.html
+++ b/website/_site/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="KST4Contest – Contest-Optimized ON4KST Chat Client">
   <meta name="twitter:description" content="KST4Contest is a modern ON4KST chat client built for VHF, UHF and SHF contest operation.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/airscout-integration/index.html b/website/_site/manual/de/airscout-integration/index.html
index 438e685..3fe0fce 100644
--- a/website/_site/manual/de/airscout-integration/index.html
+++ b/website/_site/manual/de/airscout-integration/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/benutzeroberflaeche/index.html b/website/_site/manual/de/benutzeroberflaeche/index.html
index e0275ce..43b106f 100644
--- a/website/_site/manual/de/benutzeroberflaeche/index.html
+++ b/website/_site/manual/de/benutzeroberflaeche/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/changelog/index.html b/website/_site/manual/de/changelog/index.html
index 0d16a44..ead4422 100644
--- a/website/_site/manual/de/changelog/index.html
+++ b/website/_site/manual/de/changelog/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/dx-cluster-server/index.html b/website/_site/manual/de/dx-cluster-server/index.html
index 842b428..5096597 100644
--- a/website/_site/manual/de/dx-cluster-server/index.html
+++ b/website/_site/manual/de/dx-cluster-server/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/funktionen/index.html b/website/_site/manual/de/funktionen/index.html
index b463b24..83a3632 100644
--- a/website/_site/manual/de/funktionen/index.html
+++ b/website/_site/manual/de/funktionen/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/home/index.html b/website/_site/manual/de/home/index.html
index 266bdbc..7359fdc 100644
--- a/website/_site/manual/de/home/index.html
+++ b/website/_site/manual/de/home/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/index.html b/website/_site/manual/de/index.html
index 19a59c6..d9b8b3e 100644
--- a/website/_site/manual/de/index.html
+++ b/website/_site/manual/de/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="KST4Contest Deutsches Handbuch">
   <meta name="twitter:description" content="Deutsches Benutzerhandbuch für KST4Contest.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/installation/index.html b/website/_site/manual/de/installation/index.html
index 5da6f7a..597f2ec 100644
--- a/website/_site/manual/de/installation/index.html
+++ b/website/_site/manual/de/installation/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/konfiguration/index.html b/website/_site/manual/de/konfiguration/index.html
index 0c712ff..d31039c 100644
--- a/website/_site/manual/de/konfiguration/index.html
+++ b/website/_site/manual/de/konfiguration/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/log-synchronisation/index.html b/website/_site/manual/de/log-synchronisation/index.html
index 7aecd48..e2ad4c0 100644
--- a/website/_site/manual/de/log-synchronisation/index.html
+++ b/website/_site/manual/de/log-synchronisation/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/de/makros-und-variablen/index.html b/website/_site/manual/de/makros-und-variablen/index.html
index e99d02b..5720d0a 100644
--- a/website/_site/manual/de/makros-und-variablen/index.html
+++ b/website/_site/manual/de/makros-und-variablen/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/airscout-integration/index.html b/website/_site/manual/en/airscout-integration/index.html
index 202585a..3b8cc38 100644
--- a/website/_site/manual/en/airscout-integration/index.html
+++ b/website/_site/manual/en/airscout-integration/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/changelog/index.html b/website/_site/manual/en/changelog/index.html
index 1aca6f6..c9f63c0 100644
--- a/website/_site/manual/en/changelog/index.html
+++ b/website/_site/manual/en/changelog/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/configuration/index.html b/website/_site/manual/en/configuration/index.html
index 25efc4e..746aeef 100644
--- a/website/_site/manual/en/configuration/index.html
+++ b/website/_site/manual/en/configuration/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/dx-cluster-server/index.html b/website/_site/manual/en/dx-cluster-server/index.html
index 1041e53..71ea66a 100644
--- a/website/_site/manual/en/dx-cluster-server/index.html
+++ b/website/_site/manual/en/dx-cluster-server/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/features/index.html b/website/_site/manual/en/features/index.html
index fddadd7..ef04275 100644
--- a/website/_site/manual/en/features/index.html
+++ b/website/_site/manual/en/features/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/home/index.html b/website/_site/manual/en/home/index.html
index 591b584..59adb9a 100644
--- a/website/_site/manual/en/home/index.html
+++ b/website/_site/manual/en/home/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/index.html b/website/_site/manual/en/index.html
index b82a6b3..6dfd9a1 100644
--- a/website/_site/manual/en/index.html
+++ b/website/_site/manual/en/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="KST4Contest English Manual">
   <meta name="twitter:description" content="English user manual for KST4Contest.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/installation/index.html b/website/_site/manual/en/installation/index.html
index 75f9391..e0a5091 100644
--- a/website/_site/manual/en/installation/index.html
+++ b/website/_site/manual/en/installation/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/log-sync/index.html b/website/_site/manual/en/log-sync/index.html
index ea7e0e2..a500792 100644
--- a/website/_site/manual/en/log-sync/index.html
+++ b/website/_site/manual/en/log-sync/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/macros-and-variables/index.html b/website/_site/manual/en/macros-and-variables/index.html
index 684cee9..edc2ff1 100644
--- a/website/_site/manual/en/macros-and-variables/index.html
+++ b/website/_site/manual/en/macros-and-variables/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/en/user-interface/index.html b/website/_site/manual/en/user-interface/index.html
index ce0f75e..fe0ae2c 100644
--- a/website/_site/manual/en/user-interface/index.html
+++ b/website/_site/manual/en/user-interface/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="{{ manual.title }} | KST4Contest Manual">
   <meta name="twitter:description" content="KST4Contest manual page: {{ manual.title }}">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/manual/index.html b/website/_site/manual/index.html
index 212c95a..65e4bfb 100644
--- a/website/_site/manual/index.html
+++ b/website/_site/manual/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="KST4Contest Manual">
   <meta name="twitter:description" content="Online manual for KST4Contest, the contest-optimized ON4KST chat client.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/news/2026-07-website-launch/index.html b/website/_site/news/2026-07-website-launch/index.html
index d86c259..7ad4a88 100644
--- a/website/_site/news/2026-07-website-launch/index.html
+++ b/website/_site/news/2026-07-website-launch/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="KST4Contest Website Launch">
   <meta name="twitter:description" content="Contest-optimized ON4KST chat client for VHF, UHF and SHF ham radio contests.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/news/index.html b/website/_site/news/index.html
index 6c3ebfe..77263f8 100644
--- a/website/_site/news/index.html
+++ b/website/_site/news/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="KST4Contest News">
   <meta name="twitter:description" content="News, release updates and development notes for KST4Contest.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/screenshots/index.html b/website/_site/screenshots/index.html
index 3578736..b0b1f89 100644
--- a/website/_site/screenshots/index.html
+++ b/website/_site/screenshots/index.html
@@ -17,7 +17,7 @@
   <meta name="twitter:title" content="KST4Contest Screenshots">
   <meta name="twitter:description" content="Screenshots of KST4Contest, the contest-optimized ON4KST chat client for VHF, UHF and SHF operators.">
 
-  <link rel="stylesheet" href="/assets/css/main.css?v=1783378990661">
+  <link rel="stylesheet" href="/assets/css/main.css?v=1783379221770">
   <link rel="alternate" type="application/rss+xml" title="KST4Contest News" href="/feed.xml">
 
 </head>
diff --git a/website/_site/sitemap.xml b/website/_site/sitemap.xml
index 0b9d74d..02d88c8 100644
--- a/website/_site/sitemap.xml
+++ b/website/_site/sitemap.xml
@@ -2,56 +2,74 @@
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
   <url>
     <loc>https://kst4contest.hamradioonline.de/</loc>
+    <lastmod>2026-07-05</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/manual/</loc>
+    <lastmod>2026-07-05</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/manual/en/</loc>
+    <lastmod>2026-07-05</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/download/</loc>
+    <lastmod>2026-07-05</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/features/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/screenshots/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/faq/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/manual/de/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/manual/de/airscout-integration/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/features/priority-score/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/features/airscout/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/features/timeline/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/features/sked-reminder/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/features/log-sync/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/features/dual-chat/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/features/dx-cluster/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/features/macros/</loc>
+    <lastmod>2026-07-06</lastmod>
   </url>
   <url>
     <loc>https://kst4contest.hamradioonline.de/news/2026-07-website-launch/</loc>
+    <lastmod>2026-07-07</lastmod>
   </url>
 </urlset>
\ No newline at end of file
diff --git a/website/src/sitemap.njk b/website/src/sitemap.njk
index d32f24a..98db294 100644
--- a/website/src/sitemap.njk
+++ b/website/src/sitemap.njk
@@ -8,6 +8,7 @@ eleventyExcludeFromCollections: true
   {%- if page.url and not page.data.eleventyExcludeFromCollections %}
   <url>
     <loc>https://kst4contest.hamradioonline.de{{ page.url }}</loc>
+    <lastmod>{{ page.date | dateToIso }}</lastmod>
   </url>
   {%- endif %}
 {%- endfor %}