diff --git a/changelog/dev/2025-07-18.md b/changelog/dev/2025-07-18.md
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@@ -0,0 +1,10 @@
+---
+title: "Julep AI Changelog"
+date: 2025-07-18
+tags: [dev]
+---
+
+## Julep AI Changelog - July 18, 2025
+
+### Documentation
+- Added explanatory note about dollar expressions (`$`) in task definitions for dynamic variable referencing
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diff --git a/documentation/introduction/quickstart.mdx b/documentation/introduction/quickstart.mdx
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--- a/documentation/introduction/quickstart.mdx
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@@ -137,6 +137,10 @@ Let's create a task that generates a short story based on a given topic:
   ```
 </CodeGroup>
 
+<Note>
+  Notice the `$` expression in the task definition: `$ f'Write a short story about {steps[0].input.topic}'`. This is a powerful feature that allows you to dynamically reference variables, inputs, and previous step outputs within your tasks. Learn more about [dollar expressions](/advanced/new-syntax) in the Tasks documentation.
+</Note>
+
 ### Step 5: Execute the Task
 
 Now let's run the task with a specific topic: