diff --git a/docs/attributes-registry/README.md b/docs/attributes-registry/README.md
index 35356a67cb..4e21e23c16 100644
--- a/docs/attributes-registry/README.md
+++ b/docs/attributes-registry/README.md
@@ -34,6 +34,7 @@ Currently, the following namespaces exist:
- [Android](android.md)
- [Artifact](artifact.md)
- [Aspnetcore](aspnetcore.md)
+- [Authentication](authentication.md)
- [AWS](aws.md)
- [Azure](azure.md)
- [Browser](browser.md)
diff --git a/docs/attributes-registry/authentication.md b/docs/attributes-registry/authentication.md
new file mode 100644
index 0000000000..7fc50f4539
--- /dev/null
+++ b/docs/attributes-registry/authentication.md
@@ -0,0 +1,17 @@
+
+
+
+
+
+# Authentication
+
+## Authentication Attributes
+
+"Describes the authentication information of an authenticated user."
+
+| Attribute | Type | Description | Examples | Stability |
+| ---------------------- | ------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------- | ---------------------------------------------------------------- |
+| `authentication.id` | string | Unique identifier of an authenticated user in the system. | `S-1-5-21-202424912787-2692429404-2351956786-1000` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `authentication.role` | string | Actual/assumed role the client is making the request under extracted from token or application security context. | `admin` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `authentication.scope` | string | Scopes or granted authorities the client currently possesses extracted from token or application security context. The value would come from the scope associated with an [OAuth 2.0 Access Token](https://tools.ietf.org/html/rfc6749#section-3.3) or an attribute value in a [SAML 2.0 Assertion](http://docs.oasis-open.org/security/saml/Post2.0/sstc-saml-tech-overview-2.0.html). | `read:message, write:files` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
diff --git a/docs/attributes-registry/enduser.md b/docs/attributes-registry/enduser.md
index db2d7a5835..3a674523e0 100644
--- a/docs/attributes-registry/enduser.md
+++ b/docs/attributes-registry/enduser.md
@@ -6,12 +6,11 @@
# Enduser
-## Deprecated End User Attributes
+## End User Attributes
-Describes deprecated enduser attributes. Complete enduser namespace has been deprecated
+Describes information about the end user, which can be used as a subdomain of browser, client, or user domains.
-| Attribute | Type | Description | Examples | Stability |
-| --------------- | ------ | ---------------------------------------- | --------------------------- | -------------------------------------------------------------------------------------------------- |
-| `enduser.id` | string | Deprecated, use `user.id` instead. | `username` | ![Deprecated](https://img.shields.io/badge/-deprecated-red)
Replaced by `user.id` attribute. |
-| `enduser.role` | string | Deprecated, use `user.roles` instead. | `admin` | ![Deprecated](https://img.shields.io/badge/-deprecated-red)
Replaced by `user.roles` attribute. |
-| `enduser.scope` | string | Deprecated, no replacement at this time. | `read:message, write:files` | ![Deprecated](https://img.shields.io/badge/-deprecated-red)
Removed. |
+| Attribute | Type | Description | Examples | Stability |
+| ------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | -------------------------------------------------- | ---------------------------------------------------------------- |
+| `authentication.id` | string | Unique identifier of an authenticated user in the system. | `S-1-5-21-202424912787-2692429404-2351956786-1000` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `enduser.id` | string | Identifier of an end user who interacts with a system. This identifier may be unique only through best-effort means and does not imply that the user is authenticated to the system. | `QdH5CAWJgqVT4rOr0qtumf` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |