Increase · stainless-app · Jan 7, 2026 · Jan 7, 2026 · Jan 7, 2026
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.421.0"
+  ".": "0.422.0"
 }
diff --git a/.stats.yml b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 227
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-e32ea60c7028faaf552e2846c9a58f838b16922041d551664dcb1bfa343f38cf.yml
-openapi_spec_hash: 8d3acf560b411999fee65eedda9e6a73
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-9e8b4907003e0149ea10d8c95b2facfbc011f366cea40fe86b5f02940e68998d.yml
+openapi_spec_hash: e93ee5c48421038334b8961b303465d6
 config_hash: ca52ca9a2968f330339fd50c1a386e05
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.422.0 (2026-01-07)
+
+Full Changelog: [v0.421.0...v0.422.0](https://github.com/Increase/increase-python/compare/v0.421.0...v0.422.0)
+
+### Features
+
+* **api:** api update ([8224e78](https://github.com/Increase/increase-python/commit/8224e78bf5173b541cc36bdb79a8692f2714561f))
+
 ## 0.421.0 (2026-01-06)
 
 Full Changelog: [v0.420.0...v0.421.0](https://github.com/Increase/increase-python/compare/v0.420.0...v0.421.0)

diff --git a/pyproject.toml b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "increase"
-version = "0.421.0"
+version = "0.422.0"
 description = "The official Python library for the increase API"
 dynamic = ["readme"]
 license = "Apache-2.0"

diff --git a/src/increase/_version.py b/src/increase/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "increase"
-__version__ = "0.421.0"  # x-release-please-version
+__version__ = "0.422.0"  # x-release-please-version
diff --git a/src/increase/types/card_dispute.py b/src/increase/types/card_dispute.py
@@ -2032,6 +2032,9 @@ class VisaUserSubmissionChargebackConsumerServicesNotAsDescribed(BaseModel):
     cardholder_cancellation: VisaUserSubmissionChargebackConsumerServicesNotAsDescribedCardholderCancellation
     """Cardholder cancellation."""
 
+    explanation: str
+    """Explanation of what was ordered and was not as described."""
+
     merchant_resolution_attempted: Literal["attempted", "prohibited_by_local_law"]
     """Merchant resolution attempted.
 

diff --git a/src/increase/types/card_dispute_create_params.py b/src/increase/types/card_dispute_create_params.py
@@ -1222,6 +1222,9 @@ class VisaConsumerServicesNotAsDescribed(TypedDict, total=False):
     cardholder_cancellation: Required[VisaConsumerServicesNotAsDescribedCardholderCancellation]
     """Cardholder cancellation."""
 
+    explanation: Required[str]
+    """Explanation of what was ordered and was not as described."""
+
     merchant_resolution_attempted: Required[Literal["attempted", "prohibited_by_local_law"]]
     """Merchant resolution attempted.
 

diff --git a/src/increase/types/card_dispute_submit_user_submission_params.py b/src/increase/types/card_dispute_submit_user_submission_params.py
@@ -1220,6 +1220,9 @@ class VisaChargebackConsumerServicesNotAsDescribed(TypedDict, total=False):
     cardholder_cancellation: Required[VisaChargebackConsumerServicesNotAsDescribedCardholderCancellation]
     """Cardholder cancellation."""
 
+    explanation: Required[str]
+    """Explanation of what was ordered and was not as described."""
+
     merchant_resolution_attempted: Required[Literal["attempted", "prohibited_by_local_law"]]
     """Merchant resolution attempted.
 

diff --git a/tests/api_resources/test_card_disputes.py b/tests/api_resources/test_card_disputes.py
@@ -251,6 +251,7 @@ def test_method_create_with_all_params(self, client: Increase) -> None:
                         "canceled_at": parse_date("2019-12-27"),
                         "reason": "x",
                     },
+                    "explanation": "x",
                     "merchant_resolution_attempted": "attempted",
                     "received_at": parse_date("2019-12-27"),
                 },
@@ -618,6 +619,7 @@ def test_method_submit_user_submission_with_all_params(self, client: Increase) -
                             "canceled_at": parse_date("2019-12-27"),
                             "reason": "x",
                         },
+                        "explanation": "x",
                         "merchant_resolution_attempted": "attempted",
                         "received_at": parse_date("2019-12-27"),
                     },
@@ -967,6 +969,7 @@ async def test_method_create_with_all_params(self, async_client: AsyncIncrease)
                         "canceled_at": parse_date("2019-12-27"),
                         "reason": "x",
                     },
+                    "explanation": "x",
                     "merchant_resolution_attempted": "attempted",
                     "received_at": parse_date("2019-12-27"),
                 },
@@ -1334,6 +1337,7 @@ async def test_method_submit_user_submission_with_all_params(self, async_client:
                             "canceled_at": parse_date("2019-12-27"),
                             "reason": "x",
                         },
+                        "explanation": "x",
                         "merchant_resolution_attempted": "attempted",
                         "received_at": parse_date("2019-12-27"),
                     },