diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index ea3d667e..0a7c0458 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "4.36.0"
+  ".": "4.37.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 5d845f55..ac446c34 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-f2b97a2c3e41f618dc8955ed325092320ff2170a7d7a9a26a31dc235c969b657.yml
-openapi_spec_hash: 64548564dc8ce80ef3ad38fc8cb56b30
-config_hash: dd4343ce95871032ef6e0735a4ca038c
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-672b562b91c2e644498b93b1940f8866576a6734a81346b324ed5792e9276bf3.yml
+openapi_spec_hash: 3c1a3cc113493afd824bdc6773a202bb
+config_hash: e6db17547fe854b1c240407cf4c6dc9e
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cff9fd22..7783aabf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 4.37.0 (2025-11-07)
+
+Full Changelog: [v4.36.0...v4.37.0](https://github.com/orbcorp/orb-python/compare/v4.36.0...v4.37.0)
+
+### Features
+
+* **api:** api update ([1290aad](https://github.com/orbcorp/orb-python/commit/1290aada554232e9b6745833e01b37934958e796))
+
 ## 4.36.0 (2025-11-05)
 
 Full Changelog: [v4.35.0...v4.36.0](https://github.com/orbcorp/orb-python/compare/v4.35.0...v4.36.0)
diff --git a/pyproject.toml b/pyproject.toml
index 02b7894c..266b2697 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "orb-billing"
-version = "4.36.0"
+version = "4.37.0"
 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 f344a89d..64467cd8 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__ = "4.36.0"  # x-release-please-version
+__version__ = "4.37.0"  # x-release-please-version
diff --git a/src/orb/resources/events/backfills.py b/src/orb/resources/events/backfills.py
index 31ba93bd..7839e27c 100644
--- a/src/orb/resources/events/backfills.py
+++ b/src/orb/resources/events/backfills.py
@@ -102,6 +102,9 @@ def create(
         expressiveness of computed properties allows you to deprecate existing events
         based on both a period of time and specific property values.
 
+        You may not have multiple backfills in a pending or pending_revert state with
+        overlapping timeframes.
+
         Args:
           timeframe_end: The (exclusive) end of the usage timeframe affected by this backfill. By
               default, Orb allows backfills up to 31 days in duration at a time. Reach out to
@@ -418,6 +421,9 @@ async def create(
         expressiveness of computed properties allows you to deprecate existing events
         based on both a period of time and specific property values.
 
+        You may not have multiple backfills in a pending or pending_revert state with
+        overlapping timeframes.
+
         Args:
           timeframe_end: The (exclusive) end of the usage timeframe affected by this backfill. By
               default, Orb allows backfills up to 31 days in duration at a time. Reach out to
diff --git a/src/orb/types/customers/credit_list_by_external_id_response.py b/src/orb/types/customers/credit_list_by_external_id_response.py
index c335247a..aecee49a 100644
--- a/src/orb/types/customers/credit_list_by_external_id_response.py
+++ b/src/orb/types/customers/credit_list_by_external_id_response.py
@@ -10,8 +10,8 @@
 
 
 class Filter(BaseModel):
-    field: Literal["price_id", "item_id", "price_type", "currency", "pricing_unit_id"]
-    """The property of the price to filter on."""
+    field: Literal["item_id"]
+    """The property of the price the block applies to. Only item_id is supported."""
 
     operator: Literal["includes", "excludes"]
     """Should prices that match the filter be included or excluded."""
diff --git a/src/orb/types/customers/credit_list_response.py b/src/orb/types/customers/credit_list_response.py
index fe0652d5..7de7e991 100644
--- a/src/orb/types/customers/credit_list_response.py
+++ b/src/orb/types/customers/credit_list_response.py
@@ -10,8 +10,8 @@
 
 
 class Filter(BaseModel):
-    field: Literal["price_id", "item_id", "price_type", "currency", "pricing_unit_id"]
-    """The property of the price to filter on."""
+    field: Literal["item_id"]
+    """The property of the price the block applies to. Only item_id is supported."""
 
     operator: Literal["includes", "excludes"]
     """Should prices that match the filter be included or excluded."""