diff --git a/app/MindWork AI Studio/wwwroot/app.css b/app/MindWork AI Studio/wwwroot/app.css
index cd6d5a3..566affe 100644
--- a/app/MindWork AI Studio/wwwroot/app.css	
+++ b/app/MindWork AI Studio/wwwroot/app.css	
@@ -58,4 +58,11 @@
 
 .improvedDiff .wikEdDiffFragment {
     background-color: initial !important;
+}
+
+.improvedDiff .wikEdDiffDelete {
+    text-decoration-line: line-through;
+    text-decoration-style: double;
+    text-decoration-color: red;
+    text-decoration-thickness: 2px;
 }
\ No newline at end of file
diff --git a/app/MindWork AI Studio/wwwroot/changelog/v0.9.12.md b/app/MindWork AI Studio/wwwroot/changelog/v0.9.12.md
index abd8418..62f476c 100644
--- a/app/MindWork AI Studio/wwwroot/changelog/v0.9.12.md	
+++ b/app/MindWork AI Studio/wwwroot/changelog/v0.9.12.md	
@@ -1,5 +1,6 @@
 # v0.9.12, build 187 (2024-09-xx xx:xx UTC)
 - Added a job posting assistant to the business category.
+- Improved text diff viewer by line-through deleted text.
 - Fixed the dark theme for the text diff viewer, e.g., in the grammar check assistant.
 - Fixed margin-related issue in the `ConfigurationText` component.
 - Fixed chat conversion of job posting, legal check, and my task assistants.