diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index ed94d9d8..576fef6e 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "4.45.0"
+  ".": "4.46.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 8fee554b..36221097 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 118
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-7936e3f73bbe1d59d27fd7a8a226985927b38fdec1c936c77577381699fb6140.yml
-openapi_spec_hash: 1d3f9ed5fbdb0e40d56d6acd9d1736e2
-config_hash: e6db17547fe854b1c240407cf4c6dc9e
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-03af7f658aed245cf7e230055de59fe92a78880f3719bf254ed9352bf89bad5e.yml
+openapi_spec_hash: c4703d217c25e8c02c248caed9e2d3be
+config_hash: 895e36fb2d717958770fd4cf883f4b74
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 875c437b..c8d4e34e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 4.46.0 (2025-12-06)
+
+Full Changelog: [v4.45.0...v4.46.0](https://github.com/orbcorp/orb-python/compare/v4.45.0...v4.46.0)
+
+### Features
+
+* **api:** api update ([a0222a2](https://github.com/orbcorp/orb-python/commit/a0222a2406664b664a79f094c35dcb5af8ace149))
+
 ## 4.45.0 (2025-12-03)
 
 Full Changelog: [v4.44.0...v4.45.0](https://github.com/orbcorp/orb-python/compare/v4.44.0...v4.45.0)
diff --git a/pyproject.toml b/pyproject.toml
index 43be67d5..f3491ab3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "orb-billing"
-version = "4.45.0"
+version = "4.46.0"
 description = "The official Python library for the orb API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/orb/_version.py b/src/orb/_version.py
index 0dc31380..76450eb7 100644
--- a/src/orb/_version.py
+++ b/src/orb/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "orb"
-__version__ = "4.45.0"  # x-release-please-version
+__version__ = "4.46.0"  # x-release-please-version
diff --git a/src/orb/types/subscription_change_apply_response.py b/src/orb/types/subscription_change_apply_response.py
index 17127e75..e35c12df 100644
--- a/src/orb/types/subscription_change_apply_response.py
+++ b/src/orb/types/subscription_change_apply_response.py
@@ -13,6 +13,9 @@
 class SubscriptionChangeApplyResponse(BaseModel):
     id: str
 
+    change_type: str
+    """The type of change (e.g., 'schedule_plan_change', 'create_subscription')."""
+
     expiration_time: datetime
     """
     Subscription change will be cancelled at this time and can no longer be applied.
@@ -25,5 +28,20 @@ class SubscriptionChangeApplyResponse(BaseModel):
     applied_at: Optional[datetime] = None
     """When this change was applied."""
 
+    billing_cycle_alignment: Optional[str] = None
+    """Billing cycle alignment for plan changes."""
+
     cancelled_at: Optional[datetime] = None
     """When this change was cancelled."""
+
+    change_option: Optional[str] = None
+    """
+    How the change is scheduled (e.g., 'immediate', 'end_of_subscription_term',
+    'requested_date').
+    """
+
+    effective_date: Optional[datetime] = None
+    """When this change will take effect."""
+
+    plan_id: Optional[str] = None
+    """The target plan ID for plan changes."""
diff --git a/src/orb/types/subscription_change_cancel_response.py b/src/orb/types/subscription_change_cancel_response.py
index 5f097370..2be25608 100644
--- a/src/orb/types/subscription_change_cancel_response.py
+++ b/src/orb/types/subscription_change_cancel_response.py
@@ -13,6 +13,9 @@
 class SubscriptionChangeCancelResponse(BaseModel):
     id: str
 
+    change_type: str
+    """The type of change (e.g., 'schedule_plan_change', 'create_subscription')."""
+
     expiration_time: datetime
     """
     Subscription change will be cancelled at this time and can no longer be applied.
@@ -25,5 +28,20 @@ class SubscriptionChangeCancelResponse(BaseModel):
     applied_at: Optional[datetime] = None
     """When this change was applied."""
 
+    billing_cycle_alignment: Optional[str] = None
+    """Billing cycle alignment for plan changes."""
+
     cancelled_at: Optional[datetime] = None
     """When this change was cancelled."""
+
+    change_option: Optional[str] = None
+    """
+    How the change is scheduled (e.g., 'immediate', 'end_of_subscription_term',
+    'requested_date').
+    """
+
+    effective_date: Optional[datetime] = None
+    """When this change will take effect."""
+
+    plan_id: Optional[str] = None
+    """The target plan ID for plan changes."""
diff --git a/src/orb/types/subscription_change_retrieve_response.py b/src/orb/types/subscription_change_retrieve_response.py
index 70d8e63f..1e327bba 100644
--- a/src/orb/types/subscription_change_retrieve_response.py
+++ b/src/orb/types/subscription_change_retrieve_response.py
@@ -13,6 +13,9 @@
 class SubscriptionChangeRetrieveResponse(BaseModel):
     id: str
 
+    change_type: str
+    """The type of change (e.g., 'schedule_plan_change', 'create_subscription')."""
+
     expiration_time: datetime
     """
     Subscription change will be cancelled at this time and can no longer be applied.
@@ -25,5 +28,20 @@ class SubscriptionChangeRetrieveResponse(BaseModel):
     applied_at: Optional[datetime] = None
     """When this change was applied."""
 
+    billing_cycle_alignment: Optional[str] = None
+    """Billing cycle alignment for plan changes."""
+
     cancelled_at: Optional[datetime] = None
     """When this change was cancelled."""
+
+    change_option: Optional[str] = None
+    """
+    How the change is scheduled (e.g., 'immediate', 'end_of_subscription_term',
+    'requested_date').
+    """
+
+    effective_date: Optional[datetime] = None
+    """When this change will take effect."""
+
+    plan_id: Optional[str] = None
+    """The target plan ID for plan changes."""