--- /dev/null
+# About this Documentation
+
+<!-- type=misc -->
+
+The goal of this documentation is to comprehensively explain the Node.js
+API, both from a reference as well as a conceptual point of view. Each
+section describes a built-in module or high-level concept.
+
+Where appropriate, property types, method arguments, and the arguments
+provided to event handlers are detailed in a list underneath the topic
+heading.
+
+Every `.html` document has a corresponding `.json` document presenting
+the same information in a structured manner. This feature is
+experimental, and added for the benefit of IDEs and other utilities that
+wish to do programmatic things with the documentation.
+
+Every `.html` and `.json` file is generated based on the corresponding
+`.markdown` file in the `doc/api/` folder in node's source tree. The
+documentation is generated using the `tools/doc/generate.js` program.
+The HTML template is located at `doc/template.html`.
+
+## Stability Index
+
+<!--type=misc-->
+
+Throughout the documentation, you will see indications of a section's
+stability. The Node.js API is still somewhat changing, and as it
+matures, certain parts are more reliable than others. Some are so
+proven, and so relied upon, that they are unlikely to ever change at
+all. Others are brand new and experimental, or known to be hazardous
+and in the process of being redesigned.
+
+The notices look like this:
+
+ Stability: 1 Experimental
+
+The stability indices are as follows:
+
+* **0 - Deprecated** This feature is known to be problematic, and changes are
+planned. Do not rely on it. Use of the feature may cause warnings. Backwards
+compatibility should not be expected.
+
+* **1 - Experimental** This feature was introduced recently, and may change
+or be removed in future versions. Please try it out and provide feedback.
+If it addresses a use-case that is important to you, tell the node core team.
+
+* **2 - Unstable** The API is in the process of settling, but has not yet had
+sufficient real-world testing to be considered stable. Backwards-compatibility
+will be maintained if reasonable.
+
+* **3 - Stable** The API has proven satisfactory, but cleanup in the underlying
+code may cause minor changes. Backwards-compatibility is guaranteed.
+
+* **4 - API Frozen** This API has been tested extensively in production and is
+unlikely to ever have to change.
+
+* **5 - Locked** Unless serious bugs are found, this code will not ever
+change. Please do not suggest changes in this area; they will be refused.