Modern-Treasury · stainless-app · Feb 25, 2026 · Feb 25, 2026 · Feb 27, 2026 · Feb 27, 2026
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.65.0"
+  ".": "1.66.0"
 }
diff --git a/.stats.yml b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 168
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/modern-treasury%2Fmodern-treasury-bde63a69ffc8babec84649406b308d8c8a0e648bb9d6118252b1d8b7618148c1.yml
-openapi_spec_hash: 33b83e899a18de0c21bbfd9f8167f507
-config_hash: 9a86fd97a8bb8ae860de1113fa29c42b
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/modern-treasury%2Fmodern-treasury-ccffb7bd38de82d6f015e0dd2dfcc53116dfe97249d22adb20e94e724f0eec6b.yml
+openapi_spec_hash: 9d2b7e9e5ac074b72e8ca49f2fb32f4f
+config_hash: a72bd4a2ac1f162cd206781c0f397c9e
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## 1.66.0 (2026-02-27)
+
+Full Changelog: [v1.65.0...v1.66.0](https://github.com/Modern-Treasury/modern-treasury-python/compare/v1.65.0...v1.66.0)
+
+### Features
+
+* **api:** api update ([50600ee](https://github.com/Modern-Treasury/modern-treasury-python/commit/50600ee21d488eee96ac11bd27c3a9e9e5eb3dc3))
+* **api:** api update ([00ab1cb](https://github.com/Modern-Treasury/modern-treasury-python/commit/00ab1cbe4db2fd1393e1785d5d9fe404d03aa859))
+
+
+### Chores
+
+* **api:** remove an obsolete reviewer ([6d1a706](https://github.com/Modern-Treasury/modern-treasury-python/commit/6d1a70699a0a0e4fa80f259e5352d0734cba849b))
+
 ## 1.65.0 (2026-02-24)
 
 Full Changelog: [v1.64.0...v1.65.0](https://github.com/Modern-Treasury/modern-treasury-python/compare/v1.64.0...v1.65.0)

diff --git a/pyproject.toml b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "modern-treasury"
-version = "1.65.0"
+version = "1.66.0"
 description = "The official Python library for the Modern Treasury API"
 dynamic = ["readme"]
 license = "MIT"

diff --git a/release-please-config.json b/release-please-config.json
@@ -63,8 +63,7 @@
     "samridh90",
     "wzhu20",
     "bullfight",
-    "ankitk-mt",
-    "eveyili"
+    "ankitk-mt"
   ],
   "release-type": "python",
   "extra-files": [

diff --git a/src/modern_treasury/_version.py b/src/modern_treasury/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "modern_treasury"
-__version__ = "1.65.0"  # x-release-please-version
+__version__ = "1.66.0"  # x-release-please-version
diff --git a/src/modern_treasury/types/child_legal_entity.py b/src/modern_treasury/types/child_legal_entity.py
@@ -129,6 +129,7 @@ class Identification(BaseModel):
         "ar_cuit",
         "br_cnpj",
         "br_cpf",
+        "ca_sin",
         "cl_run",
         "cl_rut",
         "co_cedulas",

diff --git a/src/modern_treasury/types/legal_entity.py b/src/modern_treasury/types/legal_entity.py
@@ -129,6 +129,7 @@ class Identification(BaseModel):
         "ar_cuit",
         "br_cnpj",
         "br_cpf",
+        "ca_sin",
         "cl_run",
         "cl_rut",
         "co_cedulas",

diff --git a/src/modern_treasury/types/payment_order.py b/src/modern_treasury/types/payment_order.py
@@ -157,8 +157,6 @@ class ReferenceNumber(BaseModel):
         "jpmc_payment_returned_datetime",
         "jpmc_transaction_reference_number",
         "lob_check_id",
-        "mt_flow_ach_noc_id",
-        "mt_flow_transfer_id",
         "other",
         "partial_swift_mir",
         "paxos_group_id",

diff --git a/src/modern_treasury/types/payment_reference.py b/src/modern_treasury/types/payment_reference.py
@@ -81,8 +81,6 @@ class PaymentReference(BaseModel):
         "jpmc_payment_returned_datetime",
         "jpmc_transaction_reference_number",
         "lob_check_id",
-        "mt_flow_ach_noc_id",
-        "mt_flow_transfer_id",
         "other",
         "partial_swift_mir",
         "paxos_group_id",

diff --git a/src/modern_treasury/types/return_object.py b/src/modern_treasury/types/return_object.py
@@ -129,8 +129,6 @@ class ReferenceNumber(BaseModel):
         "jpmc_payment_returned_datetime",
         "jpmc_transaction_reference_number",
         "lob_check_id",
-        "mt_flow_ach_noc_id",
-        "mt_flow_transfer_id",
         "other",
         "partial_swift_mir",
         "paxos_group_id",

diff --git a/src/modern_treasury/types/shared/identification_create_request.py b/src/modern_treasury/types/shared/identification_create_request.py
@@ -18,6 +18,7 @@ class IdentificationCreateRequest(BaseModel):
         "ar_cuit",
         "br_cnpj",
         "br_cpf",
+        "ca_sin",
         "cl_run",
         "cl_rut",
         "co_cedulas",

diff --git a/src/modern_treasury/types/shared_params/identification_create_request.py b/src/modern_treasury/types/shared_params/identification_create_request.py
@@ -21,6 +21,7 @@ class IdentificationCreateRequest(TypedDict, total=False):
             "ar_cuit",
             "br_cnpj",
             "br_cpf",
+            "ca_sin",
             "cl_run",
             "cl_rut",
             "co_cedulas",