diff --git a/cli/pom.xml b/cli/pom.xml
index afbc6b7a..cdc684fe 100644
--- a/cli/pom.xml
+++ b/cli/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.openapitools.openapidiff</groupId>
         <artifactId>openapi-diff-parent</artifactId>
-        <version>2.1.4</version>
+        <version>2.1.5</version>
     </parent>
 
     <artifactId>openapi-diff-cli</artifactId>
diff --git a/core/pom.xml b/core/pom.xml
index 4b79a2d6..3856a5fe 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.openapitools.openapidiff</groupId>
         <artifactId>openapi-diff-parent</artifactId>
-        <version>2.1.4</version>
+        <version>2.1.5</version>
     </parent>
 
     <artifactId>openapi-diff-core</artifactId>
diff --git a/core/src/main/java/org/openapitools/openapidiff/core/model/BackwardIncompatibleProp.java b/core/src/main/java/org/openapitools/openapidiff/core/model/BackwardIncompatibleProp.java
index 0772eace..f2180b34 100644
--- a/core/src/main/java/org/openapitools/openapidiff/core/model/BackwardIncompatibleProp.java
+++ b/core/src/main/java/org/openapitools/openapidiff/core/model/BackwardIncompatibleProp.java
@@ -52,8 +52,10 @@ public enum BackwardIncompatibleProp {
   SECURITY_SCHEME_SCHEME_CHANGED("incompatible.security.scheme.scheme.changed", true),
   SECURITY_SCHEME_SCOPES_INCREASED("incompatible.security.scheme.scopes.increased", true),
   SCHEMA_DISCRIMINATOR_CHANGED("incompatible.schema.discriminator.changed", true),
-  SCHEMA_TYPE_CHANGED("incompatible.schema.type.changed", true),
   SCHEMA_PATTERN_CHANGED("incompatible.schema.pattern.changed", true),
+  SCHEMA_MIN_PROPERTIES_CHANGED("incompatible.schema.min-properties.changed", true),
+  SCHEMA_MAX_PROPERTIES_CHANGED("incompatible.schema.max-properties.changed", true),
+  SCHEMA_TYPE_CHANGED("incompatible.schema.type.changed", true),
   ;
 
   private final String propertyName;
diff --git a/core/src/main/java/org/openapitools/openapidiff/core/model/schema/ChangedMaxProperties.java b/core/src/main/java/org/openapitools/openapidiff/core/model/schema/ChangedMaxProperties.java
index c4c56af3..8c5dce25 100644
--- a/core/src/main/java/org/openapitools/openapidiff/core/model/schema/ChangedMaxProperties.java
+++ b/core/src/main/java/org/openapitools/openapidiff/core/model/schema/ChangedMaxProperties.java
@@ -1,5 +1,7 @@
 package org.openapitools.openapidiff.core.model.schema;
 
+import static org.openapitools.openapidiff.core.model.BackwardIncompatibleProp.SCHEMA_MAX_PROPERTIES_CHANGED;
+
 import org.openapitools.openapidiff.core.model.Changed;
 import org.openapitools.openapidiff.core.model.DiffContext;
 import org.openapitools.openapidiff.core.model.DiffResult;
@@ -30,7 +32,11 @@ public DiffResult isChanged() {
     }
 
     if (oldValue == null) {
-      return DiffResult.INCOMPATIBLE;
+      if (SCHEMA_MAX_PROPERTIES_CHANGED.enabled(context)) {
+        return DiffResult.INCOMPATIBLE;
+      } else {
+        return DiffResult.COMPATIBLE;
+      }
     }
 
     if (newValue == null) {
@@ -38,7 +44,11 @@ public DiffResult isChanged() {
     }
 
     if (!oldValue.equals(newValue)) {
-      return oldValue > newValue ? DiffResult.INCOMPATIBLE : DiffResult.COMPATIBLE;
+      if (SCHEMA_MAX_PROPERTIES_CHANGED.enabled(context) && oldValue > newValue) {
+        return DiffResult.INCOMPATIBLE;
+      } else {
+        return DiffResult.COMPATIBLE;
+      }
     }
 
     return DiffResult.NO_CHANGES;
diff --git a/core/src/main/java/org/openapitools/openapidiff/core/model/schema/ChangedMinProperties.java b/core/src/main/java/org/openapitools/openapidiff/core/model/schema/ChangedMinProperties.java
index f574b5c8..16059593 100644
--- a/core/src/main/java/org/openapitools/openapidiff/core/model/schema/ChangedMinProperties.java
+++ b/core/src/main/java/org/openapitools/openapidiff/core/model/schema/ChangedMinProperties.java
@@ -1,5 +1,7 @@
 package org.openapitools.openapidiff.core.model.schema;
 
+import static org.openapitools.openapidiff.core.model.BackwardIncompatibleProp.SCHEMA_MIN_PROPERTIES_CHANGED;
+
 import org.openapitools.openapidiff.core.model.Changed;
 import org.openapitools.openapidiff.core.model.DiffContext;
 import org.openapitools.openapidiff.core.model.DiffResult;
@@ -30,7 +32,11 @@ public DiffResult isChanged() {
     }
 
     if (oldValue == null) {
-      return DiffResult.INCOMPATIBLE;
+      if (SCHEMA_MIN_PROPERTIES_CHANGED.enabled(context)) {
+        return DiffResult.INCOMPATIBLE;
+      } else {
+        return DiffResult.COMPATIBLE;
+      }
     }
 
     if (newValue == null) {
@@ -38,7 +44,11 @@ public DiffResult isChanged() {
     }
 
     if (!oldValue.equals(newValue)) {
-      return newValue > oldValue ? DiffResult.INCOMPATIBLE : DiffResult.COMPATIBLE;
+      if (SCHEMA_MIN_PROPERTIES_CHANGED.enabled(context) && newValue > oldValue) {
+        return DiffResult.INCOMPATIBLE;
+      } else {
+        return DiffResult.COMPATIBLE;
+      }
     }
 
     return DiffResult.NO_CHANGES;
diff --git a/core/src/test/java/org/openapitools/openapidiff/core/backcompat/SchemaBCTest.java b/core/src/test/java/org/openapitools/openapidiff/core/backcompat/SchemaBCTest.java
index 28d6d398..f4d624b6 100644
--- a/core/src/test/java/org/openapitools/openapidiff/core/backcompat/SchemaBCTest.java
+++ b/core/src/test/java/org/openapitools/openapidiff/core/backcompat/SchemaBCTest.java
@@ -4,10 +4,7 @@
 import static org.openapitools.openapidiff.core.TestUtils.assertSpecChangedButCompatible;
 import static org.openapitools.openapidiff.core.TestUtils.assertSpecIncompatible;
 import static org.openapitools.openapidiff.core.TestUtils.assertSpecUnchanged;
-import static org.openapitools.openapidiff.core.model.BackwardIncompatibleProp.RESPONSE_REQUIRED_DECREASED;
-import static org.openapitools.openapidiff.core.model.BackwardIncompatibleProp.SCHEMA_DISCRIMINATOR_CHANGED;
-import static org.openapitools.openapidiff.core.model.BackwardIncompatibleProp.SCHEMA_PATTERN_CHANGED;
-import static org.openapitools.openapidiff.core.model.BackwardIncompatibleProp.SCHEMA_TYPE_CHANGED;
+import static org.openapitools.openapidiff.core.model.BackwardIncompatibleProp.*;
 
 import org.junit.jupiter.api.Test;
 import org.openapitools.openapidiff.core.model.BackwardIncompatibleProp;
@@ -76,4 +73,28 @@ public void patternChanged() {
     BackwardIncompatibleProp prop = SCHEMA_PATTERN_CHANGED;
     assertSpecIncompatible(BASE, "bc_schema_pattern_changed.yaml", prop);
   }
+
+  @Test
+  public void minPropertiesIncreased() {
+    BackwardIncompatibleProp prop = SCHEMA_MIN_PROPERTIES_CHANGED;
+    assertSpecIncompatible(BASE, "bc_schema_min_properties_increased.yaml", prop);
+  }
+
+  @Test
+  public void minPropertiesAdded() {
+    BackwardIncompatibleProp prop = SCHEMA_MIN_PROPERTIES_CHANGED;
+    assertSpecIncompatible(BASE, "bc_schema_min_properties_added.yaml", prop);
+  }
+
+  @Test
+  public void maxPropertiesDecreased() {
+    BackwardIncompatibleProp prop = SCHEMA_MAX_PROPERTIES_CHANGED;
+    assertSpecIncompatible(BASE, "bc_schema_max_properties_decreased.yaml", prop);
+  }
+
+  @Test
+  public void maxPropertiesAdded() {
+    BackwardIncompatibleProp prop = SCHEMA_MAX_PROPERTIES_CHANGED;
+    assertSpecIncompatible(BASE, "bc_schema_max_properties_added.yaml", prop);
+  }
 }
diff --git a/core/src/test/resources/bc_schema_base.yaml b/core/src/test/resources/bc_schema_base.yaml
index 28d8800d..79c9aa69 100644
--- a/core/src/test/resources/bc_schema_base.yaml
+++ b/core/src/test/resources/bc_schema_base.yaml
@@ -86,6 +86,16 @@ components:
           type: integer
           format: int32
           deprecated: true
+        stuffUnbounded:
+          type: object
+          additionalProperties:
+            type: string
+        stuffBounded:
+          type: object
+          minProperties: 1
+          maxProperties: 10
+          additionalProperties:
+            type: string
       required:
         - '@type'
         - prop1
diff --git a/core/src/test/resources/bc_schema_max_properties_added.yaml b/core/src/test/resources/bc_schema_max_properties_added.yaml
new file mode 100644
index 00000000..670f5afe
--- /dev/null
+++ b/core/src/test/resources/bc_schema_max_properties_added.yaml
@@ -0,0 +1,126 @@
+openapi: 3.0.0
+info:
+  description: myDesc
+  title: myTitle
+  version: 1.0.0
+paths:
+  /widgets:
+    post:
+      operationId: widgetCreate
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/WidgetCreateRequest'
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/WidgetCreateResponse'
+    put:
+      operationId: widgetUpdate
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: object
+              properties:
+                put_prop1:
+                  type: string
+                put_prop2:
+                  type: string
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: string
+components:
+  schemas:
+    WidgetCreateRequest:
+      type: object
+      properties:
+        to_create:
+          $ref: '#/components/schemas/Widget_Polymorphic'
+        request_prop1:
+          type: integer
+          format: int32
+        request_prop2:
+          type: integer
+          format: int64
+      required:
+        - to_create
+        - request_prop1
+    WidgetCreateResponse:
+      type: object
+      properties:
+        created:
+          $ref: '#/components/schemas/Widget_Polymorphic'
+        response_prop1:
+          type: integer
+          format: int32
+        response_prop2:
+          type: integer
+          format: int64
+      required:
+        - created
+        - response_prop1
+    Widget_Polymorphic:
+      type: object
+      oneOf:
+        - $ref: '#/components/schemas/Doodad'
+        - $ref: '#/components/schemas/Gadget'
+      discriminator:
+        propertyName: '@type'
+    Widget:
+      type: object
+      properties:
+        '@type':
+          type: string
+        prop1:
+          type: string
+        prop2:
+          type: integer
+          format: int32
+          deprecated: true
+        stuffUnbounded:
+          type: object
+          maxProperties: 5
+          additionalProperties:
+            type: string
+        stuffBounded:
+          type: object
+          minProperties: 1
+          maxProperties: 10
+          additionalProperties:
+            type: string
+      required:
+        - '@type'
+        - prop1
+    Doodad:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            doodad_prop1:
+              type: string
+    Gadget:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            gadget_prop1:
+              type: string
+    Gizmo:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            gizmo_prop1:
+              type: string
diff --git a/core/src/test/resources/bc_schema_max_properties_decreased.yaml b/core/src/test/resources/bc_schema_max_properties_decreased.yaml
new file mode 100644
index 00000000..a4b86071
--- /dev/null
+++ b/core/src/test/resources/bc_schema_max_properties_decreased.yaml
@@ -0,0 +1,125 @@
+openapi: 3.0.0
+info:
+  description: myDesc
+  title: myTitle
+  version: 1.0.0
+paths:
+  /widgets:
+    post:
+      operationId: widgetCreate
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/WidgetCreateRequest'
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/WidgetCreateResponse'
+    put:
+      operationId: widgetUpdate
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: object
+              properties:
+                put_prop1:
+                  type: string
+                put_prop2:
+                  type: string
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: string
+components:
+  schemas:
+    WidgetCreateRequest:
+      type: object
+      properties:
+        to_create:
+          $ref: '#/components/schemas/Widget_Polymorphic'
+        request_prop1:
+          type: integer
+          format: int32
+        request_prop2:
+          type: integer
+          format: int64
+      required:
+        - to_create
+        - request_prop1
+    WidgetCreateResponse:
+      type: object
+      properties:
+        created:
+          $ref: '#/components/schemas/Widget_Polymorphic'
+        response_prop1:
+          type: integer
+          format: int32
+        response_prop2:
+          type: integer
+          format: int64
+      required:
+        - created
+        - response_prop1
+    Widget_Polymorphic:
+      type: object
+      oneOf:
+        - $ref: '#/components/schemas/Doodad'
+        - $ref: '#/components/schemas/Gadget'
+      discriminator:
+        propertyName: '@type'
+    Widget:
+      type: object
+      properties:
+        '@type':
+          type: string
+        prop1:
+          type: string
+        prop2:
+          type: integer
+          format: int32
+          deprecated: true
+        stuffUnbounded:
+          type: object
+          additionalProperties:
+            type: string
+        stuffBounded:
+          type: object
+          minProperties: 1
+          maxProperties: 5
+          additionalProperties:
+            type: string
+      required:
+        - '@type'
+        - prop1
+    Doodad:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            doodad_prop1:
+              type: string
+    Gadget:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            gadget_prop1:
+              type: string
+    Gizmo:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            gizmo_prop1:
+              type: string
diff --git a/core/src/test/resources/bc_schema_min_properties_added.yaml b/core/src/test/resources/bc_schema_min_properties_added.yaml
new file mode 100644
index 00000000..5398280c
--- /dev/null
+++ b/core/src/test/resources/bc_schema_min_properties_added.yaml
@@ -0,0 +1,126 @@
+openapi: 3.0.0
+info:
+  description: myDesc
+  title: myTitle
+  version: 1.0.0
+paths:
+  /widgets:
+    post:
+      operationId: widgetCreate
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/WidgetCreateRequest'
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/WidgetCreateResponse'
+    put:
+      operationId: widgetUpdate
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: object
+              properties:
+                put_prop1:
+                  type: string
+                put_prop2:
+                  type: string
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: string
+components:
+  schemas:
+    WidgetCreateRequest:
+      type: object
+      properties:
+        to_create:
+          $ref: '#/components/schemas/Widget_Polymorphic'
+        request_prop1:
+          type: integer
+          format: int32
+        request_prop2:
+          type: integer
+          format: int64
+      required:
+        - to_create
+        - request_prop1
+    WidgetCreateResponse:
+      type: object
+      properties:
+        created:
+          $ref: '#/components/schemas/Widget_Polymorphic'
+        response_prop1:
+          type: integer
+          format: int32
+        response_prop2:
+          type: integer
+          format: int64
+      required:
+        - created
+        - response_prop1
+    Widget_Polymorphic:
+      type: object
+      oneOf:
+        - $ref: '#/components/schemas/Doodad'
+        - $ref: '#/components/schemas/Gadget'
+      discriminator:
+        propertyName: '@type'
+    Widget:
+      type: object
+      properties:
+        '@type':
+          type: string
+        prop1:
+          type: string
+        prop2:
+          type: integer
+          format: int32
+          deprecated: true
+        stuffUnbounded:
+          type: object
+          minProperties: 5
+          additionalProperties:
+            type: string
+        stuffBounded:
+          type: object
+          minProperties: 1
+          maxProperties: 10
+          additionalProperties:
+            type: string
+      required:
+        - '@type'
+        - prop1
+    Doodad:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            doodad_prop1:
+              type: string
+    Gadget:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            gadget_prop1:
+              type: string
+    Gizmo:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            gizmo_prop1:
+              type: string
diff --git a/core/src/test/resources/bc_schema_min_properties_increased.yaml b/core/src/test/resources/bc_schema_min_properties_increased.yaml
new file mode 100644
index 00000000..0236a1b1
--- /dev/null
+++ b/core/src/test/resources/bc_schema_min_properties_increased.yaml
@@ -0,0 +1,125 @@
+openapi: 3.0.0
+info:
+  description: myDesc
+  title: myTitle
+  version: 1.0.0
+paths:
+  /widgets:
+    post:
+      operationId: widgetCreate
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/WidgetCreateRequest'
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/WidgetCreateResponse'
+    put:
+      operationId: widgetUpdate
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: object
+              properties:
+                put_prop1:
+                  type: string
+                put_prop2:
+                  type: string
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: string
+components:
+  schemas:
+    WidgetCreateRequest:
+      type: object
+      properties:
+        to_create:
+          $ref: '#/components/schemas/Widget_Polymorphic'
+        request_prop1:
+          type: integer
+          format: int32
+        request_prop2:
+          type: integer
+          format: int64
+      required:
+        - to_create
+        - request_prop1
+    WidgetCreateResponse:
+      type: object
+      properties:
+        created:
+          $ref: '#/components/schemas/Widget_Polymorphic'
+        response_prop1:
+          type: integer
+          format: int32
+        response_prop2:
+          type: integer
+          format: int64
+      required:
+        - created
+        - response_prop1
+    Widget_Polymorphic:
+      type: object
+      oneOf:
+        - $ref: '#/components/schemas/Doodad'
+        - $ref: '#/components/schemas/Gadget'
+      discriminator:
+        propertyName: '@type'
+    Widget:
+      type: object
+      properties:
+        '@type':
+          type: string
+        prop1:
+          type: string
+        prop2:
+          type: integer
+          format: int32
+          deprecated: true
+        stuffUnbounded:
+          type: object
+          additionalProperties:
+            type: string
+        stuffBounded:
+          type: object
+          minProperties: 5
+          maxProperties: 10
+          additionalProperties:
+            type: string
+      required:
+        - '@type'
+        - prop1
+    Doodad:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            doodad_prop1:
+              type: string
+    Gadget:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            gadget_prop1:
+              type: string
+    Gizmo:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Widget'
+        - type: object
+          properties:
+            gizmo_prop1:
+              type: string
diff --git a/maven-example/pom.xml b/maven-example/pom.xml
index 064c4056..b6938325 100644
--- a/maven-example/pom.xml
+++ b/maven-example/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>openapi-diff-parent</artifactId>
         <groupId>org.openapitools.openapidiff</groupId>
-        <version>2.1.4</version>
+        <version>2.1.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -23,7 +23,7 @@
             <plugin>
                 <groupId>org.openapitools.openapidiff</groupId>
                 <artifactId>openapi-diff-maven</artifactId>
-                <version>2.1.4</version>
+                <version>2.1.5</version>
                 <executions>
                     <execution>
                         <goals>
diff --git a/maven/pom.xml b/maven/pom.xml
index 4c398bc1..79a072c4 100644
--- a/maven/pom.xml
+++ b/maven/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.openapitools.openapidiff</groupId>
     <artifactId>openapi-diff-parent</artifactId>
-    <version>2.1.4</version>
+    <version>2.1.5</version>
   </parent>
 
   <artifactId>openapi-diff-maven</artifactId>
diff --git a/pom.xml b/pom.xml
index 5989b9bc..6187f0f0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
 
     <groupId>org.openapitools.openapidiff</groupId>
     <artifactId>openapi-diff-parent</artifactId>
-    <version>2.1.4</version>
+    <version>2.1.5</version>
     <packaging>pom</packaging>
 
     <name>openapi-diff-parent</name>
@@ -82,7 +82,7 @@
         <maven.compiler.target>1.8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <project.build.outputTimestamp>2025-10-14T20:47:24Z</project.build.outputTimestamp>
+        <project.build.outputTimestamp>2025-11-03T08:59:15Z</project.build.outputTimestamp>
         <project.scm.id>github</project.scm.id>
 
         <sonar.organization>openapitools</sonar.organization>
@@ -99,7 +99,7 @@
             <dependency>
                 <groupId>org.openapitools.openapidiff</groupId>
                 <artifactId>openapi-diff-core</artifactId>
-                <version>2.1.4</version>
+                <version>2.1.5</version>
             </dependency>
             <dependency>
                 <groupId>org.junit</groupId>
@@ -349,7 +349,7 @@
                 <plugin>
                     <groupId>org.jacoco</groupId>
                     <artifactId>jacoco-maven-plugin</artifactId>
-                    <version>0.8.13</version>
+                    <version>0.8.14</version>
                 </plugin>
                 <plugin>
                     <groupId>org.sonarsource.scanner.maven</groupId>