Add the removed attributes as deprecated

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -46,7 +46,6 @@ body:
         - area:heroku
         - area:host
         - area:http
-        - area:ios
         - area:k8s
         - area:messaging
         - area:network

.github/ISSUE_TEMPLATE/change_proposal.yaml

@@ -39,7 +39,6 @@ body:
         - area:heroku
         - area:host
         - area:http
-        - area:ios
         - area:k8s
         - area:messaging
         - area:network

.github/ISSUE_TEMPLATE/new-conventions.yaml

@@ -48,7 +48,6 @@ body:
         - area:heroku
         - area:host
         - area:http
-        - area:ios
         - area:k8s
         - area:messaging
         - area:network

docs/attributes-registry/android.md

@@ -3,23 +3,24 @@
 <!-- toc -->
 
 - [Android Attributes](#android-attributes)
-- [Android Lifecycle Event Attributes](#android-lifecycle-event-attributes)
+- [Deprecated Android Attributes](#deprecated-ios-attributes)
 
 <!-- tocstop -->
 
 ## Android Attributes
+
 <!-- semconv registry.android(omit_requirement_level) -->
 | Attribute  | Type | Description  | Examples  | Stability |
 |---|---|---|---|---|
 | `android.os.api_level` | string | Uniquely identifies the framework API revision offered by a version (`os.version`) of the android operating system. More information can be found [here](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels). | `33`; `32` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 <!-- endsemconv -->
 
-## Android Lifecycle Event Attributes
+## Deprecated Android Attributes
 
-<!-- semconv registry.android.lifecycle.events(omit_requirement_level) -->
+<!-- semconv registry.android.deprecated(omit_requirement_level) -->
 | Attribute  | Type | Description  | Examples  | Stability |
 |---|---|---|---|---|
-| `android.state` | string | This attribute represents the state the application has transitioned into at the occurrence of the event. [1] | `created` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `android.state` | string | Deprecated use the `device.app.lifecycle` event definition including `android.state` as a payload field instead. [1] | `created` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** The Android lifecycle states are defined in [Activity lifecycle callbacks](https://developer.android.com/guide/components/activities/activity-lifecycle#lc), and from which the `OS identifiers` are derived.
 

docs/attributes-registry/ios.md

@@ -5,16 +5,16 @@
 
 <!-- toc -->
 
-- [iOS Lifecycle Event Attributes](#ios-lifecycle-event-attributes)
+- [Deprecated iOS Attributes](#deprecated-ios-attributes)
 
 <!-- tocstop -->
 
-## iOS Lifecycle Event Attributes
+## Deprecated iOS Attributes
 
-<!-- semconv registry.ios.lifecycle.events(omit_requirement_level) -->
+<!-- semconv registry.ios.deprecated(omit_requirement_level) -->
 | Attribute  | Type | Description  | Examples  | Stability |
 |---|---|---|---|---|
-| `ios.state` | string | This attribute represents the state the application has transitioned into at the occurrence of the event. [1] | `active` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `ios.state` | string | Deprecated use the `device.app.lifecycle` event definition including `ios.state` as a payload field instead. [1] | `active` | ![Deprecated](https://img.shields.io/badge/-deprecated-red)<br>Moved to a payload field of `device.app.lifecycle`. |
 
 **[1]:** The iOS lifecycle states are defined in the [UIApplicationDelegate documentation](https://developer.apple.com/documentation/uikit/uiapplicationdelegate#1656902), and from which the `OS terminology` column values are derived.
 

model/registry/android.yaml

@@ -13,37 +13,3 @@ groups:
           (`os.version`) of the android operating system. More information can be found
           [here](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels).
         examples: ['33', '32']
-  - id: registry.android.lifecycle.events
-    prefix: android
-    type: attribute_group
-    brief: >
-        This document defines attributes that represents an occurrence of a lifecycle transition on the Android platform.
-    attributes:
-      - id: state
-        stability: experimental
-        brief: >
-          This attribute represents the state the application has transitioned into at the occurrence of the event.
-        note: >
-          The Android lifecycle states are defined in [Activity lifecycle callbacks](https://developer.android.com/guide/components/activities/activity-lifecycle#lc),
-          and from which the `OS identifiers` are derived.
-        type:
-          allow_custom_values: true
-          members:
-            - id: created
-              value: 'created'
-              brief: >
-                Any time before Activity.onResume() or, if the app has no Activity, Context.startService()
-                has been called in the app for the first time.
-              stability: experimental
-            - id: background
-              value: 'background'
-              brief: >
-                Any time after Activity.onPause() or, if the app has no Activity,
-                Context.stopService() has been called when the app was in the foreground state.
-              stability: experimental
-            - id: foreground
-              value: 'foreground'
-              brief: >
-                Any time after Activity.onResume() or, if the app has no Activity,
-                Context.startService() has been called when the app was in either the created or background states.
-              stability: experimental

model/registry/deprecated/android.yaml

@@ -0,0 +1,36 @@
+groups:
+  - id: registry.android.deprecated
+    prefix: android
+    type: attribute_group
+    brief: >
+        This document defines attributes that represents an occurrence of a lifecycle transition on the Android platform.
+    attributes:
+      - id: state
+        stability: experimental
+        brief: >
+          Deprecated use the `device.app.lifecycle` event definition including
+          `android.state` as a payload field instead.
+        note: >
+          The Android lifecycle states are defined in [Activity lifecycle callbacks](https://developer.android.com/guide/components/activities/activity-lifecycle#lc),
+          and from which the `OS identifiers` are derived.
+        type:
+          allow_custom_values: true
+          members:
+            - id: created
+              value: 'created'
+              brief: >
+                Any time before Activity.onResume() or, if the app has no Activity, Context.startService()
+                has been called in the app for the first time.
+              stability: experimental
+            - id: background
+              value: 'background'
+              brief: >
+                Any time after Activity.onPause() or, if the app has no Activity,
+                Context.stopService() has been called when the app was in the foreground state.
+              stability: experimental
+            - id: foreground
+              value: 'foreground'
+              brief: >
+                Any time after Activity.onResume() or, if the app has no Activity,
+                Context.startService() has been called when the app was in either the created or background states.
+              stability: experimental

model/registry/ios.yaml → model/registry/deprecated/ios.yaml

@@ -1,17 +1,19 @@
 groups:
-  - id: registry.ios.lifecycle.events
+  - id: registry.ios.deprecated
     prefix: ios
     type: attribute_group
     brief: >
         The iOS platform on which the iOS application is running.
     attributes:
       - id: state
         stability: experimental
+        deprecated: "Moved to a payload field of `device.app.lifecycle`."
         note: >
           The iOS lifecycle states are defined in the [UIApplicationDelegate documentation](https://developer.apple.com/documentation/uikit/uiapplicationdelegate#1656902),
           and from which the `OS terminology` column values are derived.
         brief: >
-          This attribute represents the state the application has transitioned into at the occurrence of the event.
+          Deprecated use the `device.app.lifecycle` event definition including
+          `ios.state` as a payload field instead.
         type:
           allow_custom_values: true
           members: