diff --git a/packages/aep-mobile/package.json b/packages/aep-mobile/package.json
index e2e86bd..36f57cd 100644
--- a/packages/aep-mobile/package.json
+++ b/packages/aep-mobile/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@adobe/griffon-toolkit-aep-mobile",
   "description": "Events definitions for the AEP Mobile SDK",
-  "version": "0.13.0",
+  "version": "0.14.0",
   "repository": {
     "type": "git",
     "url": "https://github.com/adobe/griffon-toolkit.git",
diff --git a/packages/aep-mobile/schemas/personalizationEdgeRequest.json b/packages/aep-mobile/schemas/personalizationEdgeRequest.json
index 588f141..b717033 100644
--- a/packages/aep-mobile/schemas/personalizationEdgeRequest.json
+++ b/packages/aep-mobile/schemas/personalizationEdgeRequest.json
@@ -2,7 +2,11 @@
   "$id": "http://griffon.adobe.com/schemas/aep-mobile/personalizationEdgeRequest",
   "shortDesc": "Edge Personalization Request",
   "group": "event",
-  "allOf": [{ "$ref": "http://griffon.adobe.com/schemas/aep-mobile/edgeRequest" }],
+  "allOf": [
+    {
+      "$ref": "http://griffon.adobe.com/schemas/aep-mobile/edgeRequest"
+    }
+  ],
   "type": "object",
   "properties": {
     "payload": {
@@ -21,17 +25,25 @@
                   "description": "The type of event on the edge to execute",
                   "alias": "edgeEventType",
                   "type": "string",
-                  "const": "personalization.request"
+                  "enum": [
+                    "personalization.request",
+                    "decisioning.propositionFetch"
+                  ]
                 }
               },
-              "required": [ "eventType" ]
+              "required": [
+                "eventType"
+              ]
             },
             "query": {
               "inherit": true,
               "type": "object"
             }
           },
-          "required": [ "xdm", "query" ]
+          "required": [
+            "xdm",
+            "query"
+          ]
         }
       },
       "required": [
@@ -39,4 +51,4 @@
       ]
     }
   }
-}
\ No newline at end of file
+}
diff --git a/packages/aep-mobile/src/iamMessagesRequest.ts b/packages/aep-mobile/src/iamMessagesRequest.ts
index 9f1b8f9..fdfb05c 100644
--- a/packages/aep-mobile/src/iamMessagesRequest.ts
+++ b/packages/aep-mobile/src/iamMessagesRequest.ts
@@ -12,6 +12,11 @@ governing permissions and limitations under the License.
 
 import * as kit from '@adobe/griffon-toolkit';
 import schema from '../schemas/iamMessagesRequest.json';
+import {
+  edgeEventTypeMatcher,
+  LEGACY_EDGE_EVENT_TYPE,
+  PROPOSITION_FETCH_EDGE_EVENT_TYPE
+} from './personalizationFetchEventTypes';
 
 /**
  * Contains constants and functions for a IAM Messages Request.
@@ -245,7 +250,7 @@ const getSurfaces = kit.search(path.surfaces);
  */
 const matcher = kit.combineAll([
   'payload.ACPExtensionEventData.query.personalization.surfaces',
-  'payload.ACPExtensionEventData.xdm.eventType==`personalization.request`',
+  edgeEventTypeMatcher,
   kit.combineAny([
     'payload.ACPExtensionEventSource==`com.adobe.eventSource.requestContent`',
     'payload.ACPExtensionEventSource==`com.adobe.eventsource.requestcontent`'
@@ -312,7 +317,10 @@ const mock = (input) => kit.expandWithPaths(path, {
 /* ADD CUSTOM CONTENT BELOW */
 
 // additional exports should be added here:
-const customExports = {};
+const customExports = {
+  LEGACY_EDGE_EVENT_TYPE,
+  PROPOSITION_FETCH_EDGE_EVENT_TYPE
+};
 
 /* END CUSTOM CONTENT */
 /* The content below is autogenerated. Do not make any changes */
diff --git a/packages/aep-mobile/src/index.ts b/packages/aep-mobile/src/index.ts
index fdd35a6..0cdc900 100644
--- a/packages/aep-mobile/src/index.ts
+++ b/packages/aep-mobile/src/index.ts
@@ -1,5 +1,6 @@
 // created from ctix
 
+export * from './personalizationFetchEventTypes';
 export { default as analyticsResponse } from './analyticsResponse';
 export { default as applicationLaunch } from './applicationLaunch';
 export { default as applicationUpgrade } from './applicationUpgrade';
diff --git a/packages/aep-mobile/src/optimizeMessagesRequest.ts b/packages/aep-mobile/src/optimizeMessagesRequest.ts
index 3427b7b..78803f5 100644
--- a/packages/aep-mobile/src/optimizeMessagesRequest.ts
+++ b/packages/aep-mobile/src/optimizeMessagesRequest.ts
@@ -12,6 +12,11 @@ governing permissions and limitations under the License.
 
 import * as kit from '@adobe/griffon-toolkit';
 import schema from '../schemas/optimizeMessagesRequest.json';
+import {
+  edgeEventTypeMatcher,
+  LEGACY_EDGE_EVENT_TYPE,
+  PROPOSITION_FETCH_EDGE_EVENT_TYPE
+} from './personalizationFetchEventTypes';
 
 /**
  * Contains constants and functions for a Optimize Messages Request.
@@ -245,7 +250,7 @@ const getDecisionScopes = kit.search(path.decisionScopes);
  */
 const matcher = kit.combineAll([
   'payload.ACPExtensionEventData.query.personalization.decisionScopes',
-  'payload.ACPExtensionEventData.xdm.eventType==`personalization.request`',
+  edgeEventTypeMatcher,
   kit.combineAny([
     'payload.ACPExtensionEventSource==`com.adobe.eventSource.requestContent`',
     'payload.ACPExtensionEventSource==`com.adobe.eventsource.requestcontent`'
@@ -312,7 +317,10 @@ const mock = (input) => kit.expandWithPaths(path, {
 /* ADD CUSTOM CONTENT BELOW */
 
 // additional exports should be added here:
-const customExports = {};
+const customExports = {
+  LEGACY_EDGE_EVENT_TYPE,
+  PROPOSITION_FETCH_EDGE_EVENT_TYPE
+};
 
 /* END CUSTOM CONTENT */
 /* The content below is autogenerated. Do not make any changes */
diff --git a/packages/aep-mobile/src/personalizationEdgeRequest.ts b/packages/aep-mobile/src/personalizationEdgeRequest.ts
index 6e73164..c4722b6 100644
--- a/packages/aep-mobile/src/personalizationEdgeRequest.ts
+++ b/packages/aep-mobile/src/personalizationEdgeRequest.ts
@@ -12,6 +12,11 @@ governing permissions and limitations under the License.
 
 import * as kit from '@adobe/griffon-toolkit';
 import schema from '../schemas/personalizationEdgeRequest.json';
+import {
+  edgeEventTypeMatcher,
+  LEGACY_EDGE_EVENT_TYPE,
+  PROPOSITION_FETCH_EDGE_EVENT_TYPE
+} from './personalizationFetchEventTypes';
 
 /**
  * Contains constants and functions for a Edge Personalization Request.
@@ -209,7 +214,7 @@ const getEdgeEventType = kit.search(path.edgeEventType);
  * @constant
  */
 const matcher = kit.combineAll([
-  'payload.ACPExtensionEventData.xdm.eventType==`personalization.request`',
+  edgeEventTypeMatcher,
   kit.combineAny([
     'payload.ACPExtensionEventSource==`com.adobe.eventSource.requestContent`',
     'payload.ACPExtensionEventSource==`com.adobe.eventsource.requestcontent`'
@@ -276,7 +281,10 @@ const mock = (input) => kit.expandWithPaths(path, {
 /* ADD CUSTOM CONTENT BELOW */
 
 // additional exports should be added here:
-const customExports = {};
+const customExports = {
+  LEGACY_EDGE_EVENT_TYPE,
+  PROPOSITION_FETCH_EDGE_EVENT_TYPE
+};
 
 /* END CUSTOM CONTENT */
 /* The content below is autogenerated. Do not make any changes */
diff --git a/packages/aep-mobile/src/personalizationFetchEventTypes.ts b/packages/aep-mobile/src/personalizationFetchEventTypes.ts
new file mode 100644
index 0000000..c5a9f09
--- /dev/null
+++ b/packages/aep-mobile/src/personalizationFetchEventTypes.ts
@@ -0,0 +1,38 @@
+/*
+Copyright 2026 Adobe. All rights reserved.
+This file is licensed to you under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License. You may obtain a copy
+of the License at http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed under
+the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+OF ANY KIND, either express or implied. See the License for the specific language
+governing permissions and limitations under the License.
+*/
+
+import * as kit from '@adobe/griffon-toolkit';
+
+/**
+ * XDM eventType sent by Mobile SDKs prior to Optimize 5.x.
+ * Kept for backward compatibility — Assurance must continue matching sessions
+ * from older SDK builds that still emit this value.
+ */
+export const LEGACY_EDGE_EVENT_TYPE = 'personalization.request';
+
+/**
+ * XDM eventType introduced in Optimize 5.x (aepsdk-optimize-ios PR #159).
+ * Aligns Mobile SDK with the current XDM spec already used by Web SDK.
+ * Ref: MOB-24547 / PLATIR-51299
+ */
+export const PROPOSITION_FETCH_EDGE_EVENT_TYPE = 'decisioning.propositionFetch';
+
+/**
+ * JMESPath matcher expression that accepts both the legacy and current
+ * XDM eventType for a personalization fetch edge request.
+ * Drop-in replacement for the single-value eventType clause inside
+ * kit.combineAll([...]) matcher definitions.
+ */
+export const edgeEventTypeMatcher = kit.combineAny([
+  `payload.ACPExtensionEventData.xdm.eventType==\`${LEGACY_EDGE_EVENT_TYPE}\``,
+  `payload.ACPExtensionEventData.xdm.eventType==\`${PROPOSITION_FETCH_EDGE_EVENT_TYPE}\``
+]);
diff --git a/packages/aep-mobile/test/personalizationFetchEventTypes.spec.ts b/packages/aep-mobile/test/personalizationFetchEventTypes.spec.ts
new file mode 100644
index 0000000..21115f4
--- /dev/null
+++ b/packages/aep-mobile/test/personalizationFetchEventTypes.spec.ts
@@ -0,0 +1,106 @@
+/*
+Copyright 2026 Adobe. All rights reserved.
+This file is licensed to you under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License. You may obtain a copy
+of the License at http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed under
+the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+OF ANY KIND, either express or implied. See the License for the specific language
+governing permissions and limitations under the License.
+*/
+
+import optimizeMessagesRequest from '../src/optimizeMessagesRequest';
+import personalizationEdgeRequest from '../src/personalizationEdgeRequest';
+import iamMessagesRequest from '../src/iamMessagesRequest';
+import {
+  LEGACY_EDGE_EVENT_TYPE,
+  PROPOSITION_FETCH_EDGE_EVENT_TYPE
+} from '../src/personalizationFetchEventTypes';
+
+describe('personalizationFetchEventTypes', () => {
+  describe('constants', () => {
+    it('LEGACY_EDGE_EVENT_TYPE is the deprecated personalization.request value', () => {
+      expect(LEGACY_EDGE_EVENT_TYPE).toBe('personalization.request');
+    });
+
+    it('PROPOSITION_FETCH_EDGE_EVENT_TYPE is the current decisioning.propositionFetch value', () => {
+      expect(PROPOSITION_FETCH_EDGE_EVENT_TYPE).toBe('decisioning.propositionFetch');
+    });
+  });
+
+  describe('optimizeMessagesRequest backward compatibility', () => {
+    it('matches a legacy personalization.request optimize event', () => {
+      const event = optimizeMessagesRequest.mock({
+        edgeEventType: LEGACY_EDGE_EVENT_TYPE,
+        decisionScopes: ['demoLoc1']
+      });
+      expect(optimizeMessagesRequest.isMatch(event)).toBe(true);
+    });
+
+    it('matches a new decisioning.propositionFetch optimize event', () => {
+      const event = optimizeMessagesRequest.mock({
+        edgeEventType: PROPOSITION_FETCH_EDGE_EVENT_TYPE,
+        decisionScopes: ['demoLoc1']
+      });
+      expect(optimizeMessagesRequest.isMatch(event)).toBe(true);
+    });
+
+    it('does not match an unrelated edge event type', () => {
+      const event = optimizeMessagesRequest.mock({
+        edgeEventType: 'decisioning.propositionDisplay',
+        decisionScopes: ['demoLoc1']
+      });
+      expect(optimizeMessagesRequest.isMatch(event)).toBe(false);
+    });
+  });
+
+  describe('personalizationEdgeRequest backward compatibility', () => {
+    it('matches a legacy personalization.request edge event', () => {
+      const event = personalizationEdgeRequest.mock({
+        edgeEventType: LEGACY_EDGE_EVENT_TYPE
+      });
+      expect(personalizationEdgeRequest.isMatch(event)).toBe(true);
+    });
+
+    it('matches a new decisioning.propositionFetch edge event', () => {
+      const event = personalizationEdgeRequest.mock({
+        edgeEventType: PROPOSITION_FETCH_EDGE_EVENT_TYPE
+      });
+      expect(personalizationEdgeRequest.isMatch(event)).toBe(true);
+    });
+
+    it('does not match an unrelated edge event type', () => {
+      const event = personalizationEdgeRequest.mock({
+        edgeEventType: 'decisioning.propositionDisplay'
+      });
+      expect(personalizationEdgeRequest.isMatch(event)).toBe(false);
+    });
+  });
+
+  describe('iamMessagesRequest backward compatibility', () => {
+    it('matches a legacy personalization.request IAM event', () => {
+      const event = iamMessagesRequest.mock({
+        edgeEventType: LEGACY_EDGE_EVENT_TYPE,
+        surfaces: ['mobileapp://com.example.app']
+      });
+      expect(iamMessagesRequest.isMatch(event)).toBe(true);
+    });
+
+    it('matches a new decisioning.propositionFetch IAM event', () => {
+      const event = iamMessagesRequest.mock({
+        edgeEventType: PROPOSITION_FETCH_EDGE_EVENT_TYPE,
+        surfaces: ['mobileapp://com.example.app']
+      });
+      expect(iamMessagesRequest.isMatch(event)).toBe(true);
+    });
+
+    it('does not match an unrelated edge event type', () => {
+      const event = iamMessagesRequest.mock({
+        edgeEventType: 'decisioning.propositionDisplay',
+        surfaces: ['mobileapp://com.example.app']
+      });
+      expect(iamMessagesRequest.isMatch(event)).toBe(false);
+    });
+  });
+});