diff --git a/packages/concerto-analysis/src/compare-config.ts b/packages/concerto-analysis/src/compare-config.ts
index 75c725e91..511f660dc 100644
--- a/packages/concerto-analysis/src/compare-config.ts
+++ b/packages/concerto-analysis/src/compare-config.ts
@@ -57,6 +57,7 @@ export const defaultCompareConfig: CompareConfig = {
         'enum-value-added': CompareResult.PATCH,
         'enum-value-removed': CompareResult.MAJOR,
         'property-type-changed': CompareResult.MAJOR,
+        'property-type-aliased':CompareResult.PATCH,
         'property-validator-added': CompareResult.MAJOR,
         'property-validator-removed': CompareResult.PATCH,
         'property-validator-changed': CompareResult.MAJOR,
diff --git a/packages/concerto-analysis/src/comparers/properties.ts b/packages/concerto-analysis/src/comparers/properties.ts
index 753bff6bb..107d44105 100644
--- a/packages/concerto-analysis/src/comparers/properties.ts
+++ b/packages/concerto-analysis/src/comparers/properties.ts
@@ -173,9 +173,7 @@ const propertyTypeChanged: ComparerFactory = (context) => ({
         //     return;
         // }
         const versionDiff = semver.diff(aTypeVersion, bTypeVersion);
-        if (!versionDiff) {
-            return;
-        } else if (versionDiff === 'major' || versionDiff === 'premajor') {
+        if (versionDiff === 'major' || versionDiff === 'premajor') {
             context.report({
                 key: 'property-type-changed',
                 message: `The ${aType} "${a.getName()}" in the ${classDeclarationType} "${a.getParent().getName()}" changed type from "${aFQTN}" to "${bFQTN}" (type version incompatible)`,
@@ -183,6 +181,16 @@ const propertyTypeChanged: ComparerFactory = (context) => ({
             });
             return;
         }
+        // Up to this point, 'a' and 'b' have identical fully qualified type names with matching major and premajor versions.
+        // Next, we verify whether their types differ locally, which would indicate aliasing.
+        if (!versionDiff && (a.getType() !== b.getType())) {
+            context.report({
+                key: 'property-type-aliased',
+                message: `The local type name for "${a.getName()}" in the ${classDeclarationType} "${a.getParent().getName()}" is changed from ${a.getType()} to ${b.getType()}`,
+                element: a
+            });
+            return;
+        }
     },
 });
 
diff --git a/packages/concerto-analysis/test/fixtures/field-local-type-change-a.cto b/packages/concerto-analysis/test/fixtures/field-local-type-change-a.cto
new file mode 100644
index 000000000..591d49c4c
--- /dev/null
+++ b/packages/concerto-analysis/test/fixtures/field-local-type-change-a.cto
@@ -0,0 +1,7 @@
+namespace org.accordproject.concerto.test@1.2.3
+
+import org.accordproject.concerto.test.other@2.3.4.{ Bar }
+
+concept Thing {
+    o Bar bar
+}
diff --git a/packages/concerto-analysis/test/fixtures/field-local-type-change-b.cto b/packages/concerto-analysis/test/fixtures/field-local-type-change-b.cto
new file mode 100644
index 000000000..81ca51f46
--- /dev/null
+++ b/packages/concerto-analysis/test/fixtures/field-local-type-change-b.cto
@@ -0,0 +1,7 @@
+namespace org.accordproject.concerto.test@1.2.3
+
+import org.accordproject.concerto.test.other@2.3.4.{ Bar as b }
+
+concept Thing {
+    o b bar
+}
diff --git a/packages/concerto-analysis/test/unit/compare-config.test.ts b/packages/concerto-analysis/test/unit/compare-config.test.ts
index d37fcba63..ca9115d26 100644
--- a/packages/concerto-analysis/test/unit/compare-config.test.ts
+++ b/packages/concerto-analysis/test/unit/compare-config.test.ts
@@ -16,7 +16,7 @@ describe('CompareConfigBuilder', () => {
         const actual = builder.default().build();
 
         expect(actual.comparerFactories.length).toEqual(11);
-        expect(Object.keys(actual.rules).length).toEqual(20);
+        expect(Object.keys(actual.rules).length).toEqual(21);
         expect(actual.rules['class-declaration-added']).toEqual(CompareResult.MINOR);
         expect(actual.rules['optional-property-added']).toEqual(CompareResult.PATCH);
         expect(actual.rules['map-value-type-changed']).toEqual(CompareResult.MAJOR);
@@ -37,7 +37,7 @@ describe('CompareConfigBuilder', () => {
         const actual = builder.default().extend(toExtend).build();
 
         expect(actual.comparerFactories.length).toEqual(12);
-        expect(Object.keys(actual.rules).length).toEqual(21);
+        expect(Object.keys(actual.rules).length).toEqual(22);
         expect(actual.rules['a-new-rule']).toEqual(CompareResult.MAJOR);
     });
 
@@ -47,7 +47,7 @@ describe('CompareConfigBuilder', () => {
         const actual = builder.default().addComparerFactory(() => ({})).build();
 
         expect(actual.comparerFactories.length).toEqual(12);
-        expect(Object.keys(actual.rules).length).toEqual(20);
+        expect(Object.keys(actual.rules).length).toEqual(21);
     });
 
     it('Should add a new rule', () => {
@@ -56,7 +56,7 @@ describe('CompareConfigBuilder', () => {
         const actual = builder.default().addRule('a-new-rule', CompareResult.MAJOR).build();
 
         expect(actual.comparerFactories.length).toEqual(11);
-        expect(Object.keys(actual.rules).length).toEqual(21);
+        expect(Object.keys(actual.rules).length).toEqual(22);
         expect(actual.rules['a-new-rule']).toEqual(CompareResult.MAJOR);
     });
 
@@ -66,7 +66,7 @@ describe('CompareConfigBuilder', () => {
         const actual = builder.default().removeRule('optional-property-added').build();
 
         expect(actual.comparerFactories.length).toEqual(11);
-        expect(Object.keys(actual.rules).length).toEqual(19);
+        expect(Object.keys(actual.rules).length).toEqual(20);
         expect(actual.rules['optional-property-added']).toBeFalsy();
     });
 
diff --git a/packages/concerto-analysis/test/unit/compare.test.ts b/packages/concerto-analysis/test/unit/compare.test.ts
index 670fbfe7c..e694c2826 100644
--- a/packages/concerto-analysis/test/unit/compare.test.ts
+++ b/packages/concerto-analysis/test/unit/compare.test.ts
@@ -15,8 +15,9 @@ async function getModelFile(modelManager: ModelManager, fileName: string) {
 async function getModelFiles(
     aFileName: string,
     bFileName: string,
+    importAliasing = false
 ): Promise<[a: ModelFile, b: ModelFile]> {
-    const modelManager = new ModelManager({ strict: true });
+    const modelManager = new ModelManager({ strict: true, importAliasing: importAliasing });
     const a = await getModelFile(modelManager, aFileName);
     const b = await getModelFile(modelManager, bFileName);
     return [a, b];
@@ -255,6 +256,18 @@ test('should detect an array changing to a property', async () => {
     expect(results.result).toBe(CompareResult.MAJOR);
 });
 
+test('should detect a field local type name change', async () => {
+    const [a, b] = await getModelFiles('field-local-type-change-a.cto', 'field-local-type-change-b.cto',true);
+    const results = new Compare().compare(a, b);
+    expect(results.findings).toEqual(expect.arrayContaining([
+        expect.objectContaining({
+            key: 'property-type-aliased',
+            message: 'The local type name for "bar" in the concept "Thing" is changed from Bar to b'
+        })
+    ]));
+    expect(results.result).toBe(CompareResult.PATCH);
+});
+
 test('should detect a map key type changing from x to y', async () => {
     process.env.ENABLE_MAP_TYPE = 'true'; // TODO Remove on release of MapType
     const [a, b] = await getModelFiles('map-added.cto', 'map-changed-key.cto');
diff --git a/packages/concerto-core/api.txt b/packages/concerto-core/api.txt
index 0e73ce1a9..9c87c9060 100644
--- a/packages/concerto-core/api.txt
+++ b/packages/concerto-core/api.txt
@@ -334,7 +334,7 @@ class ModelLoader {
    + ModelManager[] loadModelManagerFromModelFiles(object[],string[],object,boolean?,boolean?,number?) 
 }
 class ModelManager extends BaseModelManager {
-   + void constructor(object?,boolean?,Object?,boolean?) 
+   + void constructor(object?,boolean?,Object?,boolean?,boolean?) 
    + ModelFile addCTOModel(string,string?,boolean?) throws IllegalModelException
 }
    + object getRootModel() 
diff --git a/packages/concerto-core/changelog.txt b/packages/concerto-core/changelog.txt
index a3df38a6a..c0bebf00b 100644
--- a/packages/concerto-core/changelog.txt
+++ b/packages/concerto-core/changelog.txt
@@ -24,6 +24,9 @@
 # Note that the latest public API is documented using JSDocs and is available in api.txt.
 #
 
+Version 3.17.5 {9bd69f9522c14a99a085f077e12ac4b2} 2024-08-29
+- importAliasing added to ModelManager parameters
+
 Version 3.17.4 {8cb49c7092c48b568da3b0a3eeab2777} 2024-08-01
 - Added api getImportedType() in modeFile
 
diff --git a/packages/concerto-core/lib/basemodelmanager.js b/packages/concerto-core/lib/basemodelmanager.js
index 75578388b..037446a6e 100644
--- a/packages/concerto-core/lib/basemodelmanager.js
+++ b/packages/concerto-core/lib/basemodelmanager.js
@@ -98,8 +98,7 @@ class BaseModelManager {
         // TODO Remove on release of MapType
         // Supports both env var and property based flag
         this.enableMapType = !!options?.enableMapType;
-        this.importAliasing = !!options?.importAliasing;
-
+        this.importAliasing = process?.env?.IMPORT_ALIASING === 'true' || !!options?.importAliasing;
         // Cache a copy of the Metamodel ModelFile for use when validating the structure of ModelFiles later.
         this.metamodelModelFile = new ModelFile(this, MetaModelUtil.metaModelAst, undefined, MetaModelNamespace);
 
diff --git a/packages/concerto-core/lib/modelmanager.js b/packages/concerto-core/lib/modelmanager.js
index 05d7c14a7..ddedcfb4c 100644
--- a/packages/concerto-core/lib/modelmanager.js
+++ b/packages/concerto-core/lib/modelmanager.js
@@ -60,6 +60,7 @@ class ModelManager extends BaseModelManager {
      * @param {boolean} [options.strict] - require versioned namespaces and imports
      * @param {Object} [options.regExp] - An alternative regular expression engine.
      * @param {boolean} [options.enableMapType] - When true, the Concerto Map Type feature is enabled
+     * @param {boolean} [options.importAliasing] - When true, the Concerto Map Type feature is enabled
      */
     constructor(options) {
         super(options, ctoProcessFile(options));
diff --git a/packages/concerto-core/types/lib/modelmanager.d.ts b/packages/concerto-core/types/lib/modelmanager.d.ts
index 8a5d1e81a..051d8d4dc 100644
--- a/packages/concerto-core/types/lib/modelmanager.d.ts
+++ b/packages/concerto-core/types/lib/modelmanager.d.ts
@@ -20,11 +20,13 @@ declare class ModelManager extends BaseModelManager {
      * @param {boolean} [options.strict] - require versioned namespaces and imports
      * @param {Object} [options.regExp] - An alternative regular expression engine.
      * @param {boolean} [options.enableMapType] - When true, the Concerto Map Type feature is enabled
+     * @param {boolean} [options.importAliasing] - When true, the Concerto Map Type feature is enabled
      */
     constructor(options?: {
         strict?: boolean;
         regExp?: any;
         enableMapType?: boolean;
+        importAliasing?: boolean;
     });
     /**
      * Adds a model in CTO format to the ModelManager.