diff --git a/Changelog.md b/Changelog.md
index a25ef4a1..4551ed44 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -60,6 +60,8 @@
 - Added the `Address` DTO class (implements the `Address` interface)
 - Added the `AdjusterAliases` class that for decoupling FQCNs from the database
 - Added automatic mapping of adjuster FQCN <-> aliases when saving an adjustment into the DB and when calling the `getAdjuster()` method
+- BC: Added the `findBySku()` method to the `Product` and `MasterProductVariant` interfaces
+- BC: The `MasterProduct` interface no longer extends the `Product` interface
 - BC: The `Checkout` interface now extends the `ArrayAccess` and the `Shippable` interfaces (until here, only the concrete classes have implementation it)
 - BC: Added cart and order item models to the Relation morph map: the `adjustable_type` field in the `adjustments` table needs to be converted!
 - BC: Added the `?CheckoutSubject` return type to the `getCart()` method of the `Checkout` interface
diff --git a/src/MasterProduct/Changelog.md b/src/MasterProduct/Changelog.md
index 29e538ba..9d0a9be1 100644
--- a/src/MasterProduct/Changelog.md
+++ b/src/MasterProduct/Changelog.md
@@ -14,6 +14,9 @@
 - Changed minimal Enum requirement to v4.2
 - Added the `Stockable` interface to the `MasterProductVariant` Model
 - Added the `backorder` field to product variants
+- BC: Added the `findBySku()` method to the `MasterProductVariant` interface
+- BC: The `MasterProduct` interface no longer extends the `Product` interface
+
 
 ## 3.x Series
 
diff --git a/src/MasterProduct/Contracts/MasterProduct.php b/src/MasterProduct/Contracts/MasterProduct.php
index 49a45f23..67655365 100644
--- a/src/MasterProduct/Contracts/MasterProduct.php
+++ b/src/MasterProduct/Contracts/MasterProduct.php
@@ -16,13 +16,16 @@
 
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Support\Collection;
-use Vanilo\Product\Contracts\Product;
 
 /**
  * @property-read Collection|MasterProductVariant[] $variants
  */
-interface MasterProduct extends Product
+interface MasterProduct
 {
+    public function isActive(): bool;
+
+    public function title(): string;
+
     public function variants(): HasMany;
 
     public function createVariant(array $attributes): MasterProductVariant;
diff --git a/src/MasterProduct/Contracts/MasterProductVariant.php b/src/MasterProduct/Contracts/MasterProductVariant.php
index 23a63029..bf395597 100644
--- a/src/MasterProduct/Contracts/MasterProductVariant.php
+++ b/src/MasterProduct/Contracts/MasterProductVariant.php
@@ -16,4 +16,5 @@
 
 interface MasterProductVariant
 {
+    public static function findBySku(string $sku): ?MasterProductVariant;
 }