diff --git a/src/Models/Model.php b/src/Models/Model.php
index 55947a9..5ddc042 100644
--- a/src/Models/Model.php
+++ b/src/Models/Model.php
@@ -128,7 +128,7 @@ public function getOriginal( string $key = null ) {
 	 * Whether the property is set or not. This is different from isset() because this considers a `null` value as
 	 * being set. Defaults are considered set as well.
 	 *
-	 * @since TBD
+	 * @unreleased
 	 *
 	 * @return boolean
 	 */
@@ -139,7 +139,7 @@ public function isSet( string $key ): bool {
 	/**
 	 * Check if there is a default value for a property.
 	 *
-	 * @since TBD
+	 * @unreleased
 	 *
 	 * @param string $key Property name.
 	 *
diff --git a/tests/wpunit/ModelTest.php b/tests/wpunit/ModelTest.php
index 8627616..1adf2e4 100644
--- a/tests/wpunit/ModelTest.php
+++ b/tests/wpunit/ModelTest.php
@@ -278,7 +278,7 @@ public function testShouldSetMultipleAttributes() {
 	}
 
 	/**
-	 * @since TBD
+	 * @unreleased
 	 *
 	 * @return void
 	 */