diff --git a/stubs/CoreImmutableClasses.phpstub b/stubs/CoreImmutableClasses.phpstub
index 60b807abbfe..a2695e0dd90 100644
--- a/stubs/CoreImmutableClasses.phpstub
+++ b/stubs/CoreImmutableClasses.phpstub
@@ -19,22 +19,19 @@ class DateTimeZone
 /**
  * @psalm-immutable
  *
- * @template-covariant From of string|DateTimeInterface
- * @implements IteratorAggregate<int, DateTimeInterface>
+ * @template-covariant Start of string|DateTimeInterface
+ * @implements Traversable<int, DateTimeInterface>
  */
-class DatePeriod implements IteratorAggregate
+class DatePeriod implements Traversable
 {
     const EXCLUDE_START_DATE = 1;
     /**
-     * @param From $from
-     * @param (From is string ? 0|self::EXCLUDE_START_DATE : DateInterval) $interval_or_options
-     * @param (From is string ? never : DateTimeInterface|positive-int) $end_or_recurrences
-     * @param (From is string ? never : 0|self::EXCLUDE_START_DATE) $options
+     * @param Start $start
+     * @param (Start is string ? 0|self::EXCLUDE_START_DATE : DateInterval) $interval
+     * @param (Start is string ? never : DateTimeInterface|positive-int) $end
+     * @param (Start is string ? never : 0|self::EXCLUDE_START_DATE) $options
      */
-    public function __construct($from, $interval_or_options = 0, $end_or_recurrences = 1, $options = 0) {}
-
-    /** @psalm-return (From is string ? (Traversable<int, DateTime>&Iterator) : (Traversable<int, From>&Iterator)) */
-    public function getIterator(): Iterator {}
+    public function __construct($start, $interval = 0, $end = 1, $options = 0) {}
 }
 
 /**
diff --git a/stubs/Php80.phpstub b/stubs/Php80.phpstub
index 877b156f3a0..97b0621178b 100644
--- a/stubs/Php80.phpstub
+++ b/stubs/Php80.phpstub
@@ -82,3 +82,24 @@ class ReflectionUnionType extends ReflectionType {
 }
 
 class UnhandledMatchError extends Error {}
+
+/**
+ * @psalm-immutable
+ *
+ * @template-covariant Start of string|DateTimeInterface
+ * @implements IteratorAggregate<int, DateTimeInterface>
+ */
+class DatePeriod implements IteratorAggregate
+{
+    const EXCLUDE_START_DATE = 1;
+    /**
+     * @param Start $start
+     * @param (Start is string ? 0|self::EXCLUDE_START_DATE : DateInterval) $interval
+     * @param (Start is string ? never : DateTimeInterface|positive-int) $end
+     * @param (Start is string ? never : 0|self::EXCLUDE_START_DATE) $options
+     */
+    public function __construct($start, $interval = 0, $end = 1, $options = 0) {}
+
+    /** @psalm-return (Start is string ? (Traversable<int, DateTime>&Iterator) : (Traversable<int, Start>&Iterator)) */
+    public function getIterator(): Iterator {}
+}
\ No newline at end of file
diff --git a/tests/CoreStubsTest.php b/tests/CoreStubsTest.php
index 38a38672c40..d6f0a85a916 100644
--- a/tests/CoreStubsTest.php
+++ b/tests/CoreStubsTest.php
@@ -33,7 +33,26 @@ public function providerValidCodeParse(): iterable
             'error_levels' => [],
             'php_version' => '8.0',
         ];
-        yield 'Iterating over \DatePeriod (#5954)' => [
+        yield 'Iterating over \DatePeriod (#5954) PHP7 Traversable' => [
+            '<?php
+
+            $period = new DatePeriod(
+                new DateTimeImmutable("now"),
+                DateInterval::createFromDateString("1 day"),
+                new DateTime("+1 week")
+            );
+            $dt = null;
+            foreach ($period as $dt) {
+                echo $dt->format("Y-m-d");
+            }',
+            'assertions' => [
+                '$period' => 'DatePeriod<DateTimeImmutable>',
+                '$dt' => 'DateTimeInterface|null'
+            ],
+            'error_levels' => [],
+            'php_version' => '7.3',
+        ];
+        yield 'Iterating over \DatePeriod (#5954) PHP8 IteratorAggregate' => [
             '<?php
 
             $period = new DatePeriod(
@@ -49,6 +68,8 @@ public function providerValidCodeParse(): iterable
                 '$period' => 'DatePeriod<DateTimeImmutable>',
                 '$dt' => 'DateTimeImmutable|null'
             ],
+            'error_levels' => [],
+            'php_version' => '8.0',
         ];
         yield 'Iterating over \DatePeriod (#5954), ISO string' => [
             '<?php
@@ -62,6 +83,26 @@ public function providerValidCodeParse(): iterable
                 '$period' => 'DatePeriod<string>',
                 '$dt' => 'DateTime|null'
             ],
+            'error_levels' => [],
+            'php_version' => '8.0',
+        ];
+        yield 'DatePeriod implements only Traversable on PHP 7' => [
+            '<?php
+
+            $period = new DatePeriod("R4/2012-07-01T00:00:00Z/P7D");
+            if ($period instanceof IteratorAggregate) {}',
+            'assertions' => [],
+            'error_levels' => [],
+            'php_version' => '7.3',
+        ];
+        yield 'DatePeriod implements IteratorAggregate on PHP 8' => [
+            '<?php
+
+            $period = new DatePeriod("R4/2012-07-01T00:00:00Z/P7D");
+            if ($period instanceof IteratorAggregate) {}',
+            'assertions' => [],
+            'error_levels' => ['RedundantCondition'],
+            'php_version' => '8.0',
         ];
     }
 }