diff --git a/README.md b/README.md
index e084e35ab90..44fec622f43 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ With prompt flow, you will be able to:
 
 - **Create and iteratively develop flow**
     - Create executable [flows](https://microsoft.github.io/promptflow/concepts/concept-flows.html) that link LLMs, prompts, Python code and other [tools](https://microsoft.github.io/promptflow/concepts/concept-tools.html) together.
-    - Debug and iterate your flows, especially the [interaction with LLMs](https://microsoft.github.io/promptflow/concepts/concept-connections.html) with ease.
+    - Debug and iterate your flows, especially [tracing interaction with LLMs](https://microsoft.github.io/promptflow/how-to-guides/tracing/index.html) with ease.
 - **Evaluate flow quality and performance**
     - Evaluate your flow's quality and performance with larger datasets.
     - Integrate the testing and evaluation into your CI/CD system to ensure quality of your flow.
diff --git a/docs/index.md b/docs/index.md
index 9e2fbe2a0a5..d42f8bb4602 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -13,7 +13,7 @@ html_theme.sidebar_secondary.remove: true
 With prompt flow, you will be able to:
 
 - **Create [flows](./concepts/concept-flows.md)** that link [LLMs](./reference/tools-reference/llm-tool.md), [prompts](./reference/tools-reference/prompt-tool.md), [Python](./reference/tools-reference/python-tool.md) code and other [tools](./concepts/concept-tools.md) together in a executable workflow.
-- **Debug and iterate your flows**, especially the interaction with LLMs with ease.
+- **Debug and iterate your flows**, especially [tracing interaction with LLMs](how-to-guides/tracing/index.md) with ease.
 - **Evaluate your flows**, calculate quality and performance metrics with larger datasets.
 - **Integrate the testing and evaluation into your CI/CD system** to ensure quality of your flow.
 - **Deploy your flows** to the serving platform you choose or integrate into your app's code base easily.
@@ -39,6 +39,7 @@ This documentation site contains guides for prompt flow [sdk, cli](https://pypi.
 - header: "📒 How-to Guides"
   content: "
     Articles guide user to complete a specific task in prompt flow.<br/><br/>
+    - [Tracing](how-to-guides/tracing/index.md)<br/>
     - [Develop a flow](how-to-guides/develop-a-flex-flow/index.md)<br/>
     - [Run and evaluate a flow](how-to-guides/run-and-evaluate-a-flow/index.md)<br/>
     - [Deploy a flow](how-to-guides/deploy-a-flow/index.md)<br/>
diff --git a/scripts/docs/_static/custom.css b/scripts/docs/_static/custom.css
index 0a9fc6c1913..2b395314f5e 100644
--- a/scripts/docs/_static/custom.css
+++ b/scripts/docs/_static/custom.css
@@ -20,17 +20,33 @@
     max-width: 70em;
 }
 
+/* Background color for feature announcement */
 html[data-theme="light"] {
-    --header-announcement-color: #fff070;
+    --header-announcement-color: #3278e5;
 }
 
 html[data-theme="dark"] {
-    --header-announcement-color: #4d4d00;
+    --header-announcement-color: #67d6ed;
 }
 
 .bd-header-announcement {
     background: var(--header-announcement-color);
 }
+/* Background color for feature announcement */
+
+/* Background color for warning announcement */
+/*html[data-theme="light"] {*/
+/*    --header-announcement-color: #fff070;*/
+/*}*/
+
+/*html[data-theme="dark"] {*/
+/*    --header-announcement-color: #4d4d00;*/
+/*}*/
+
+/*.bd-header-announcement {*/
+/*    background: var(--header-announcement-color);*/
+/*}*/
+/* Background color for warning announcement */
 
 /* (A) LIGHTBOX BACKGROUND */
 #lightbox {
diff --git a/scripts/docs/conf.py b/scripts/docs/conf.py
index 7f4853fb25c..b1cbb427d0d 100644
--- a/scripts/docs/conf.py
+++ b/scripts/docs/conf.py
@@ -112,10 +112,11 @@
     "show_toc_level": 1,
     "navbar_align": "left",  # [left, content, right] For testing that the navbar items align properly
     "navbar_center": ["navbar-nav"],
-    "announcement": "<b>[IMPORTANT]</b> Please uninstall existing promptflow and sub packages before you "
-    "upgrade from promptflow<=1.7.0 to newer version. Reach "
-    "<a href='https://microsoft.github.io/promptflow/how-to-guides/faq.html#promptflow-1-8-0-upgrade-guide'>"
-    "here</a> for more details.",
+    "announcement": "🚀<b style='color:black;'>"
+    "Promptflow 1.13.0 has released! Try new feature: "
+    "<a href='https://microsoft.github.io/promptflow/how-to-guides/tracing/index.html' style='color:black;'>"
+    "<u>tracing interaction with LLMs</u></a>."
+    "</b>",
     "show_nav_level": 1,
 }
 
diff --git a/src/promptflow/README.md b/src/promptflow/README.md
index 3e74ff0633e..cb548a8b866 100644
--- a/src/promptflow/README.md
+++ b/src/promptflow/README.md
@@ -24,7 +24,7 @@ With prompt flow, you will be able to:
 
 - **Create and iteratively develop flow**
     - Create executable [flows](https://microsoft.github.io/promptflow/concepts/concept-flows.html) that link LLMs, prompts, Python code and other [tools](https://microsoft.github.io/promptflow/concepts/concept-tools.html) together.
-    - Debug and iterate your flows, especially the [interaction with LLMs](https://microsoft.github.io/promptflow/concepts/concept-connections.html) with ease.
+    - Debug and iterate your flows, especially [tracing interaction with LLMs](https://microsoft.github.io/promptflow/how-to-guides/tracing/index.html) with ease.
 - **Evaluate flow quality and performance**
     - Evaluate your flow's quality and performance with larger datasets.
     - Integrate the testing and evaluation into your CI/CD system to ensure quality of your flow.