diff --git a/server/build.rs b/server/build.rs
index af36bd4..848267e 100644
--- a/server/build.rs
+++ b/server/build.rs
@@ -1,25 +1,29 @@
 use std::process::Command;
 
 fn main() {
-    let git_hash = Command::new("git")
+    let mut git_hash = Command::new("git")
         .args(["rev-parse", "--short", "HEAD"])
         .output()
         .ok()
         .and_then(|out| String::from_utf8(out.stdout).ok())
         .unwrap_or_else(|| "unknown".to_string());
+    
+    git_hash = git_hash.trim().to_string();
 
-    let git_date = Command::new("git")
-        .args(["log", "-1", "--format=%cd", "--date=format:%y.%m.%d.%H%M%S"])
+    let is_dirty = Command::new("git")
+        .args(["status", "--porcelain"])
         .output()
         .ok()
-        .and_then(|out| String::from_utf8(out.stdout).ok())
-        .unwrap_or_else(|| "unknown".to_string());
+        .map(|out| !out.stdout.is_empty())
+        .unwrap_or(false);
 
-    let version = format!(
-        "{} ({})",
-        git_date.trim(),
-        git_hash.trim()
-    );
+    if is_dirty {
+        git_hash.push_str("-dirty");
+    }
+
+    let build_date = chrono::Local::now().format("%y.%m.%d.%H%M%S").to_string();
+
+    let version = format!("{} ({})", build_date, git_hash);
     println!("cargo:rustc-env=APP_VERSION={}", version);
 
     if std::env::var("CARGO_CFG_TARGET_OS").unwrap_or_default() == "windows" {
diff --git a/server/src/dashboard.html b/server/src/dashboard.html
index 2dc8deb..41585f3 100644
--- a/server/src/dashboard.html
+++ b/server/src/dashboard.html
@@ -893,6 +893,33 @@
         }
 
         // --- WebSocket Activity Feed ---
+        const MAX_ACTIVITY_HISTORY = 100;
+
+        function saveActivityHistory(time, htmlData) {
+            try {
+                let history = JSON.parse(localStorage.getItem('activityHistory') || '[]');
+                history.push({ time, data: htmlData });
+                if (history.length > MAX_ACTIVITY_HISTORY) history = history.slice(-MAX_ACTIVITY_HISTORY);
+                localStorage.setItem('activityHistory', JSON.stringify(history));
+            } catch(e) {}
+        }
+
+        function loadActivityHistory() {
+            try {
+                const feed = document.getElementById('activity-feed');
+                let history = JSON.parse(localStorage.getItem('activityHistory') || '[]');
+                history.forEach(item => {
+                    const div = document.createElement('div');
+                    div.className = 'feed-entry';
+                    div.innerHTML = `<span class="time">[${item.time}]</span> ${item.data}`;
+                    feed.appendChild(div);
+                });
+                if (history.length > 0) {
+                    feed.scrollTop = feed.scrollHeight;
+                }
+            } catch(e) {}
+        }
+
         function setupWS() {
             const protocol = location.protocol === 'https:' ? 'wss:' : 'ws:';
             const ws = new WebSocket(`${protocol}//${location.host}/ws?client=ui`);
@@ -908,6 +935,8 @@
                         div.innerHTML = `<span class="time">[${time}]</span> ${data.data}`;
                         feed.appendChild(div);
                         
+                        saveActivityHistory(time, data.data);
+                        
                         // Auto-scroll logic
                         const isScrolledToBottom = feed.scrollHeight - feed.clientHeight <= feed.scrollTop + 20;
                         if (isScrolledToBottom) {
@@ -967,6 +996,7 @@
         loadGraph();
         loadTasks();
         loadStickyNotes();
+        loadActivityHistory();
         setupWS();
         
         // Listen to theme toggle changes to update graph font colors