diff --git a/README.md b/README.md
index b2f5864..7ca1ccf 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ In Udemy:
 Section 1 = NEW WEEK 1  
 Section 2 = NEW WEEK 2  
 Section 3 = NEW WEEK 3  
-Section 4 = Original Week 4  
+Section 4 = NEW WEEK 4  
 Section 5 = Original Week 5  
 Section 6 = Original Week 6  
 Section 7 = Original Week 7  
@@ -39,7 +39,8 @@ Then as an appendix / archive:
 
 Section 9 = Original Week 1  
 Section 10 = Original Week 2  
-Section 11 = Original Week 3  
+Section 11 = Original Week 3    
+Section 12 = Original Week 4  
 
 ### To revert to the original version of code, consistent with the original videos (Anaconda + virtualenv)
 
@@ -74,7 +75,11 @@ We will start the course by installing Ollama so you can see results immediately
 
 Any problems, please contact me!
 
-## Then, Setup instructions
+## Before the Setup instructions - a special note
+
+Early on in the course (on Day 2), I give a demo of a very cool, popular product called Claude Code. It's an AI coding tool, similar to Cursor that we use on the course. I'm only showing this as an example of Agentic AI in action; it's not a tool that's covered explicitly on this course, particularly as we're in Cursor. But if you want to use Claude Code yourself, the Quick Start guide from Anthropic is [here](https://docs.claude.com/en/docs/claude-code/quickstart).
+
+## OK - now on to Setup instructions
 
 After we do the Ollama quick project, and after I introduce myself and the course, we get to work with the full environment setup.  
 
diff --git a/setup/SETUP-new.md b/setup/SETUP-new.md
index 151bd9f..5b78566 100644
--- a/setup/SETUP-new.md
+++ b/setup/SETUP-new.md
@@ -209,3 +209,7 @@ Now go to View >> Explorer. Open the week1 folder, and click on `day1.ipynb`.
 - If this doesn't come up, please go to the troubleshooting lab in the Setup folder.
 
 # CONGRATULATIONS!! You made it! The rest of the course is easy 😂
+
+**One final note:**
+
+Early on in the course (on Day 2), I give a demo of a very cool, popular product called Claude Code. It's an AI coding tool, similar to Cursor that we use on the course. I'm only showing this as an example of Agentic AI in action; it's not a tool that's covered explicitly on this course, particularly as we're in Cursor. But if you want to use Claude Code yourself, the Quick Start guide from Anthropic is [here](https://docs.claude.com/en/docs/claude-code/quickstart).
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