diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 7ea4b07b..2b878682 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.507.0"
+  ".": "0.508.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 05958983..bb449d9e 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 238
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase/increase-dfa51d8d0b4b31cb929920acfba59c9d2e928de78fc1ac44c639ff9f735727bf.yml
-openapi_spec_hash: 401f64bbe952d952c600b78c42f0ed6c
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase/increase-c2a96dbb3b2b8f8b770122d20d9a18c6f53712c5b69f26551d45fbb320ed4351.yml
+openapi_spec_hash: 2a0f520c0a49a415df945eb33d8a707c
 config_hash: 060e036e1db198f2e908364c9df7096e
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 753078b5..4f45b3a1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.508.0 (2026-05-01)
+
+Full Changelog: [v0.507.0...v0.508.0](https://github.com/Increase/increase-python/compare/v0.507.0...v0.508.0)
+
+### Features
+
+* **api:** api update ([1dbec31](https://github.com/Increase/increase-python/commit/1dbec314033d0a902d91af860a6881aaeb56a207))
+
 ## 0.507.0 (2026-05-01)
 
 Full Changelog: [v0.506.0...v0.507.0](https://github.com/Increase/increase-python/compare/v0.506.0...v0.507.0)
diff --git a/pyproject.toml b/pyproject.toml
index d18e7186..93c8df69 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "increase"
-version = "0.507.0"
+version = "0.508.0"
 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
index 7bec82ce..a6e99ed2 100644
--- 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__ = "0.507.0"  # x-release-please-version
+__version__ = "0.508.0"  # x-release-please-version
diff --git a/src/increase/resources/simulations/inbound_mail_items.py b/src/increase/resources/simulations/inbound_mail_items.py
index 391028ea..8ed74ac6 100755
--- a/src/increase/resources/simulations/inbound_mail_items.py
+++ b/src/increase/resources/simulations/inbound_mail_items.py
@@ -57,8 +57,8 @@ def create(
         idempotency_key: str | None = None,
     ) -> InboundMailItem:
         """
-        Simulates an inbound mail item to your account, as if someone had mailed a
-        physical check to one of your account's Lockboxes.
+        Simulates an Inbound Mail Item to one of your Lockbox Addresses or Lockbox
+        Recipients, as if someone had mailed a physical check.
 
         Args:
           amount: The amount of the check to be simulated, in cents.
@@ -138,8 +138,8 @@ async def create(
         idempotency_key: str | None = None,
     ) -> InboundMailItem:
         """
-        Simulates an inbound mail item to your account, as if someone had mailed a
-        physical check to one of your account's Lockboxes.
+        Simulates an Inbound Mail Item to one of your Lockbox Addresses or Lockbox
+        Recipients, as if someone had mailed a physical check.
 
         Args:
           amount: The amount of the check to be simulated, in cents.