From 96a4f241bdf8dffe57c91140bf33f54a2c21a223 Mon Sep 17 00:00:00 2001
From: "stainless-app[bot]"
 <142633134+stainless-app[bot]@users.noreply.github.com>
Date: Thu, 12 Feb 2026 03:19:04 +0000
Subject: [PATCH 1/5] chore(internal): fix lint error on Python 3.14

---
 src/kernel/_utils/_compat.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kernel/_utils/_compat.py b/src/kernel/_utils/_compat.py
index dd703233..2c70b299 100644
--- a/src/kernel/_utils/_compat.py
+++ b/src/kernel/_utils/_compat.py
@@ -26,7 +26,7 @@ def is_union(tp: Optional[Type[Any]]) -> bool:
     else:
         import types
 
-        return tp is Union or tp is types.UnionType
+        return tp is Union or tp is types.UnionType  # type: ignore[comparison-overlap]
 
 
 def is_typeddict(tp: Type[Any]) -> bool:

From 9d160d798b25fc5416a2cce84b2ad8e2fc46f801 Mon Sep 17 00:00:00 2001
From: "stainless-app[bot]"
 <142633134+stainless-app[bot]@users.noreply.github.com>
Date: Thu, 12 Feb 2026 18:00:27 +0000
Subject: [PATCH 2/5] feat: Add error_code field to ManagedAuthSession and
 related components

---
 .stats.yml                                          | 4 ++--
 src/kernel/types/auth/connection_follow_response.py | 3 +++
 src/kernel/types/auth/managed_auth.py               | 3 +++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/.stats.yml b/.stats.yml
index 00007d67..f7218213 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 100
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/kernel%2Fkernel-82fd51be8dc9b6ad425425f9eb747dd337df494a030d03d37f101e2236c85548.yml
-openapi_spec_hash: ab396816e2b7da9938d42ec5a41cc8e1
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/kernel%2Fkernel-b7d469021adcd1493f74dad38746ffa3817dcf86a0a12561a88eb554824e3ffb.yml
+openapi_spec_hash: 4134c95bf3012dca38797ca56d62395b
 config_hash: 27c0ea01aeb797a1767af139851c5b66
diff --git a/src/kernel/types/auth/connection_follow_response.py b/src/kernel/types/auth/connection_follow_response.py
index e54d5c10..06ffaeab 100644
--- a/src/kernel/types/auth/connection_follow_response.py
+++ b/src/kernel/types/auth/connection_follow_response.py
@@ -95,6 +95,9 @@ class ManagedAuthStateEvent(BaseModel):
     discovered_fields: Optional[List[ManagedAuthStateEventDiscoveredField]] = None
     """Fields awaiting input (present when flow_step=AWAITING_INPUT)."""
 
+    error_code: Optional[str] = None
+    """Machine-readable error code (present when flow_status=FAILED)."""
+
     error_message: Optional[str] = None
     """Error message (present when flow_status=FAILED)."""
 
diff --git a/src/kernel/types/auth/managed_auth.py b/src/kernel/types/auth/managed_auth.py
index 04a67432..de607c9e 100644
--- a/src/kernel/types/auth/managed_auth.py
+++ b/src/kernel/types/auth/managed_auth.py
@@ -155,6 +155,9 @@ class ManagedAuth(BaseModel):
     discovered_fields: Optional[List[DiscoveredField]] = None
     """Fields awaiting input (present when flow_step=awaiting_input)"""
 
+    error_code: Optional[str] = None
+    """Machine-readable error code (present when flow_status=failed)"""
+
     error_message: Optional[str] = None
     """Error message (present when flow_status=failed)"""
 

From c4ea333ede664dbaa38911b1f97310e0b8a9618f Mon Sep 17 00:00:00 2001
From: "stainless-app[bot]"
 <142633134+stainless-app[bot]@users.noreply.github.com>
Date: Fri, 13 Feb 2026 03:12:08 +0000
Subject: [PATCH 3/5] chore: format all `api.md` files

---
 pyproject.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index 1ede9229..9eabe4e5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -69,7 +69,7 @@ format = { chain = [
   # run formatting again to fix any inconsistencies when imports are stripped
   "format:ruff",
 ]}
-"format:docs" = "python scripts/utils/ruffen-docs.py README.md api.md"
+"format:docs" = "bash -c 'python scripts/utils/ruffen-docs.py README.md $(find . -type f -name api.md)'"
 "format:ruff" = "ruff format"
 
 "lint" = { chain = [

From 6463d9fdb94477867d82fd69630688878c79b182 Mon Sep 17 00:00:00 2001
From: "stainless-app[bot]"
 <142633134+stainless-app[bot]@users.noreply.github.com>
Date: Fri, 13 Feb 2026 22:14:31 +0000
Subject: [PATCH 4/5] feat: Allow arbitrary viewport dimensions

---
 .stats.yml                                    |  4 +-
 src/kernel/resources/browser_pools.py         | 56 +++++++++----------
 src/kernel/resources/browsers/browsers.py     | 28 +++++-----
 src/kernel/types/browser_create_params.py     | 14 ++---
 src/kernel/types/browser_create_response.py   | 14 ++---
 src/kernel/types/browser_list_response.py     | 14 ++---
 src/kernel/types/browser_pool.py              | 14 ++---
 .../types/browser_pool_acquire_response.py    | 14 ++---
 .../types/browser_pool_create_params.py       | 14 ++---
 .../types/browser_pool_update_params.py       | 14 ++---
 src/kernel/types/browser_retrieve_response.py | 14 ++---
 src/kernel/types/browser_update_response.py   | 14 ++---
 .../invocation_list_browsers_response.py      | 14 ++---
 src/kernel/types/shared/browser_viewport.py   |  9 +--
 .../types/shared_params/browser_viewport.py   |  9 +--
 15 files changed, 124 insertions(+), 122 deletions(-)

diff --git a/.stats.yml b/.stats.yml
index f7218213..264b8c9d 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 100
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/kernel%2Fkernel-b7d469021adcd1493f74dad38746ffa3817dcf86a0a12561a88eb554824e3ffb.yml
-openapi_spec_hash: 4134c95bf3012dca38797ca56d62395b
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/kernel%2Fkernel-47ee6a2b624baddb41a681feff758bf1893cd3d65edf3ab51219ebe4d942932b.yml
+openapi_spec_hash: 76178c41ede593e76bfacb176057d2f0
 config_hash: 27c0ea01aeb797a1767af139851c5b66
diff --git a/src/kernel/resources/browser_pools.py b/src/kernel/resources/browser_pools.py
index 4f6ad8b2..9177d678 100644
--- a/src/kernel/resources/browser_pools.py
+++ b/src/kernel/resources/browser_pools.py
@@ -108,13 +108,13 @@ def create(
               are destroyed. Defaults to 600 seconds if not specified
 
           viewport: Initial browser window size in pixels with optional refresh rate. If omitted,
-              image defaults apply (1920x1080@25). Only specific viewport configurations are
-              supported. The server will reject unsupported combinations. Supported
-              resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25,
-              1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not provided, it will
-              be automatically determined from the width and height if they match a supported
-              configuration exactly. Note: Higher resolutions may affect the responsiveness of
-              live view browser
+              image defaults apply (1920x1080@25). Arbitrary viewport dimensions are accepted,
+              but the following configurations are known-good and fully tested: 2560x1440@10,
+              1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60.
+              Viewports outside this list may exhibit unstable live view or recording
+              behavior. If refresh_rate is not provided, it will be automatically determined
+              based on the resolution (higher resolutions use lower refresh rates to keep
+              bandwidth reasonable).
 
           extra_headers: Send extra headers
 
@@ -240,13 +240,13 @@ def update(
               are destroyed. Defaults to 600 seconds if not specified
 
           viewport: Initial browser window size in pixels with optional refresh rate. If omitted,
-              image defaults apply (1920x1080@25). Only specific viewport configurations are
-              supported. The server will reject unsupported combinations. Supported
-              resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25,
-              1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not provided, it will
-              be automatically determined from the width and height if they match a supported
-              configuration exactly. Note: Higher resolutions may affect the responsiveness of
-              live view browser
+              image defaults apply (1920x1080@25). Arbitrary viewport dimensions are accepted,
+              but the following configurations are known-good and fully tested: 2560x1440@10,
+              1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60.
+              Viewports outside this list may exhibit unstable live view or recording
+              behavior. If refresh_rate is not provided, it will be automatically determined
+              based on the resolution (higher resolutions use lower refresh rates to keep
+              bandwidth reasonable).
 
           extra_headers: Send extra headers
 
@@ -546,13 +546,13 @@ async def create(
               are destroyed. Defaults to 600 seconds if not specified
 
           viewport: Initial browser window size in pixels with optional refresh rate. If omitted,
-              image defaults apply (1920x1080@25). Only specific viewport configurations are
-              supported. The server will reject unsupported combinations. Supported
-              resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25,
-              1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not provided, it will
-              be automatically determined from the width and height if they match a supported
-              configuration exactly. Note: Higher resolutions may affect the responsiveness of
-              live view browser
+              image defaults apply (1920x1080@25). Arbitrary viewport dimensions are accepted,
+              but the following configurations are known-good and fully tested: 2560x1440@10,
+              1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60.
+              Viewports outside this list may exhibit unstable live view or recording
+              behavior. If refresh_rate is not provided, it will be automatically determined
+              based on the resolution (higher resolutions use lower refresh rates to keep
+              bandwidth reasonable).
 
           extra_headers: Send extra headers
 
@@ -678,13 +678,13 @@ async def update(
               are destroyed. Defaults to 600 seconds if not specified
 
           viewport: Initial browser window size in pixels with optional refresh rate. If omitted,
-              image defaults apply (1920x1080@25). Only specific viewport configurations are
-              supported. The server will reject unsupported combinations. Supported
-              resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25,
-              1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not provided, it will
-              be automatically determined from the width and height if they match a supported
-              configuration exactly. Note: Higher resolutions may affect the responsiveness of
-              live view browser
+              image defaults apply (1920x1080@25). Arbitrary viewport dimensions are accepted,
+              but the following configurations are known-good and fully tested: 2560x1440@10,
+              1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60.
+              Viewports outside this list may exhibit unstable live view or recording
+              behavior. If refresh_rate is not provided, it will be automatically determined
+              based on the resolution (higher resolutions use lower refresh rates to keep
+              bandwidth reasonable).
 
           extra_headers: Send extra headers
 
diff --git a/src/kernel/resources/browsers/browsers.py b/src/kernel/resources/browsers/browsers.py
index 4b61d8d8..fe0e5ab9 100644
--- a/src/kernel/resources/browsers/browsers.py
+++ b/src/kernel/resources/browsers/browsers.py
@@ -185,13 +185,13 @@ def create(
               see is +/- 5 seconds around the specified value.
 
           viewport: Initial browser window size in pixels with optional refresh rate. If omitted,
-              image defaults apply (1920x1080@25). Only specific viewport configurations are
-              supported. The server will reject unsupported combinations. Supported
-              resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25,
-              1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not provided, it will
-              be automatically determined from the width and height if they match a supported
-              configuration exactly. Note: Higher resolutions may affect the responsiveness of
-              live view browser
+              image defaults apply (1920x1080@25). Arbitrary viewport dimensions are accepted,
+              but the following configurations are known-good and fully tested: 2560x1440@10,
+              1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60.
+              Viewports outside this list may exhibit unstable live view or recording
+              behavior. If refresh_rate is not provided, it will be automatically determined
+              based on the resolution (higher resolutions use lower refresh rates to keep
+              bandwidth reasonable).
 
           extra_headers: Send extra headers
 
@@ -596,13 +596,13 @@ async def create(
               see is +/- 5 seconds around the specified value.
 
           viewport: Initial browser window size in pixels with optional refresh rate. If omitted,
-              image defaults apply (1920x1080@25). Only specific viewport configurations are
-              supported. The server will reject unsupported combinations. Supported
-              resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25,
-              1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not provided, it will
-              be automatically determined from the width and height if they match a supported
-              configuration exactly. Note: Higher resolutions may affect the responsiveness of
-              live view browser
+              image defaults apply (1920x1080@25). Arbitrary viewport dimensions are accepted,
+              but the following configurations are known-good and fully tested: 2560x1440@10,
+              1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60.
+              Viewports outside this list may exhibit unstable live view or recording
+              behavior. If refresh_rate is not provided, it will be automatically determined
+              based on the resolution (higher resolutions use lower refresh rates to keep
+              bandwidth reasonable).
 
           extra_headers: Send extra headers
 
diff --git a/src/kernel/types/browser_create_params.py b/src/kernel/types/browser_create_params.py
index 1e93fa6d..3a6297b9 100644
--- a/src/kernel/types/browser_create_params.py
+++ b/src/kernel/types/browser_create_params.py
@@ -69,11 +69,11 @@ class BrowserCreateParams(TypedDict, total=False):
     viewport: BrowserViewport
     """Initial browser window size in pixels with optional refresh rate.
 
-    If omitted, image defaults apply (1920x1080@25). Only specific viewport
-    configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25,
-    1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not
-    provided, it will be automatically determined from the width and height if they
-    match a supported configuration exactly. Note: Higher resolutions may affect the
-    responsiveness of live view browser
+    If omitted, image defaults apply (1920x1080@25). Arbitrary viewport dimensions
+    are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60,
+    1200x800@60. Viewports outside this list may exhibit unstable live view or
+    recording behavior. If refresh_rate is not provided, it will be automatically
+    determined based on the resolution (higher resolutions use lower refresh rates
+    to keep bandwidth reasonable).
     """
diff --git a/src/kernel/types/browser_create_response.py b/src/kernel/types/browser_create_response.py
index b6c28acf..898f9fa5 100644
--- a/src/kernel/types/browser_create_response.py
+++ b/src/kernel/types/browser_create_response.py
@@ -54,11 +54,11 @@ class BrowserCreateResponse(BaseModel):
     viewport: Optional[BrowserViewport] = None
     """Initial browser window size in pixels with optional refresh rate.
 
-    If omitted, image defaults apply (1920x1080@25). Only specific viewport
-    configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25,
-    1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not
-    provided, it will be automatically determined from the width and height if they
-    match a supported configuration exactly. Note: Higher resolutions may affect the
-    responsiveness of live view browser
+    If omitted, image defaults apply (1920x1080@25). Arbitrary viewport dimensions
+    are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60,
+    1200x800@60. Viewports outside this list may exhibit unstable live view or
+    recording behavior. If refresh_rate is not provided, it will be automatically
+    determined based on the resolution (higher resolutions use lower refresh rates
+    to keep bandwidth reasonable).
     """
diff --git a/src/kernel/types/browser_list_response.py b/src/kernel/types/browser_list_response.py
index d99546d5..f687b176 100644
--- a/src/kernel/types/browser_list_response.py
+++ b/src/kernel/types/browser_list_response.py
@@ -54,11 +54,11 @@ class BrowserListResponse(BaseModel):
     viewport: Optional[BrowserViewport] = None
     """Initial browser window size in pixels with optional refresh rate.
 
-    If omitted, image defaults apply (1920x1080@25). Only specific viewport
-    configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25,
-    1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not
-    provided, it will be automatically determined from the width and height if they
-    match a supported configuration exactly. Note: Higher resolutions may affect the
-    responsiveness of live view browser
+    If omitted, image defaults apply (1920x1080@25). Arbitrary viewport dimensions
+    are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60,
+    1200x800@60. Viewports outside this list may exhibit unstable live view or
+    recording behavior. If refresh_rate is not provided, it will be automatically
+    determined based on the resolution (higher resolutions use lower refresh rates
+    to keep bandwidth reasonable).
     """
diff --git a/src/kernel/types/browser_pool.py b/src/kernel/types/browser_pool.py
index fbbf2cb6..fc4e0f1d 100644
--- a/src/kernel/types/browser_pool.py
+++ b/src/kernel/types/browser_pool.py
@@ -70,13 +70,13 @@ class BrowserPoolConfig(BaseModel):
     viewport: Optional[BrowserViewport] = None
     """Initial browser window size in pixels with optional refresh rate.
 
-    If omitted, image defaults apply (1920x1080@25). Only specific viewport
-    configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25,
-    1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not
-    provided, it will be automatically determined from the width and height if they
-    match a supported configuration exactly. Note: Higher resolutions may affect the
-    responsiveness of live view browser
+    If omitted, image defaults apply (1920x1080@25). Arbitrary viewport dimensions
+    are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60,
+    1200x800@60. Viewports outside this list may exhibit unstable live view or
+    recording behavior. If refresh_rate is not provided, it will be automatically
+    determined based on the resolution (higher resolutions use lower refresh rates
+    to keep bandwidth reasonable).
     """
 
 
diff --git a/src/kernel/types/browser_pool_acquire_response.py b/src/kernel/types/browser_pool_acquire_response.py
index 3175b398..581168c6 100644
--- a/src/kernel/types/browser_pool_acquire_response.py
+++ b/src/kernel/types/browser_pool_acquire_response.py
@@ -54,11 +54,11 @@ class BrowserPoolAcquireResponse(BaseModel):
     viewport: Optional[BrowserViewport] = None
     """Initial browser window size in pixels with optional refresh rate.
 
-    If omitted, image defaults apply (1920x1080@25). Only specific viewport
-    configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25,
-    1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not
-    provided, it will be automatically determined from the width and height if they
-    match a supported configuration exactly. Note: Higher resolutions may affect the
-    responsiveness of live view browser
+    If omitted, image defaults apply (1920x1080@25). Arbitrary viewport dimensions
+    are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60,
+    1200x800@60. Viewports outside this list may exhibit unstable live view or
+    recording behavior. If refresh_rate is not provided, it will be automatically
+    determined based on the resolution (higher resolutions use lower refresh rates
+    to keep bandwidth reasonable).
     """
diff --git a/src/kernel/types/browser_pool_create_params.py b/src/kernel/types/browser_pool_create_params.py
index 81deaa68..78268a50 100644
--- a/src/kernel/types/browser_pool_create_params.py
+++ b/src/kernel/types/browser_pool_create_params.py
@@ -69,11 +69,11 @@ class BrowserPoolCreateParams(TypedDict, total=False):
     viewport: BrowserViewport
     """Initial browser window size in pixels with optional refresh rate.
 
-    If omitted, image defaults apply (1920x1080@25). Only specific viewport
-    configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25,
-    1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not
-    provided, it will be automatically determined from the width and height if they
-    match a supported configuration exactly. Note: Higher resolutions may affect the
-    responsiveness of live view browser
+    If omitted, image defaults apply (1920x1080@25). Arbitrary viewport dimensions
+    are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60,
+    1200x800@60. Viewports outside this list may exhibit unstable live view or
+    recording behavior. If refresh_rate is not provided, it will be automatically
+    determined based on the resolution (higher resolutions use lower refresh rates
+    to keep bandwidth reasonable).
     """
diff --git a/src/kernel/types/browser_pool_update_params.py b/src/kernel/types/browser_pool_update_params.py
index 63487086..74b76a63 100644
--- a/src/kernel/types/browser_pool_update_params.py
+++ b/src/kernel/types/browser_pool_update_params.py
@@ -75,11 +75,11 @@ class BrowserPoolUpdateParams(TypedDict, total=False):
     viewport: BrowserViewport
     """Initial browser window size in pixels with optional refresh rate.
 
-    If omitted, image defaults apply (1920x1080@25). Only specific viewport
-    configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25,
-    1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not
-    provided, it will be automatically determined from the width and height if they
-    match a supported configuration exactly. Note: Higher resolutions may affect the
-    responsiveness of live view browser
+    If omitted, image defaults apply (1920x1080@25). Arbitrary viewport dimensions
+    are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60,
+    1200x800@60. Viewports outside this list may exhibit unstable live view or
+    recording behavior. If refresh_rate is not provided, it will be automatically
+    determined based on the resolution (higher resolutions use lower refresh rates
+    to keep bandwidth reasonable).
     """
diff --git a/src/kernel/types/browser_retrieve_response.py b/src/kernel/types/browser_retrieve_response.py
index 09210e8c..454cbd64 100644
--- a/src/kernel/types/browser_retrieve_response.py
+++ b/src/kernel/types/browser_retrieve_response.py
@@ -54,11 +54,11 @@ class BrowserRetrieveResponse(BaseModel):
     viewport: Optional[BrowserViewport] = None
     """Initial browser window size in pixels with optional refresh rate.
 
-    If omitted, image defaults apply (1920x1080@25). Only specific viewport
-    configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25,
-    1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not
-    provided, it will be automatically determined from the width and height if they
-    match a supported configuration exactly. Note: Higher resolutions may affect the
-    responsiveness of live view browser
+    If omitted, image defaults apply (1920x1080@25). Arbitrary viewport dimensions
+    are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60,
+    1200x800@60. Viewports outside this list may exhibit unstable live view or
+    recording behavior. If refresh_rate is not provided, it will be automatically
+    determined based on the resolution (higher resolutions use lower refresh rates
+    to keep bandwidth reasonable).
     """
diff --git a/src/kernel/types/browser_update_response.py b/src/kernel/types/browser_update_response.py
index 01c34be5..8f451736 100644
--- a/src/kernel/types/browser_update_response.py
+++ b/src/kernel/types/browser_update_response.py
@@ -54,11 +54,11 @@ class BrowserUpdateResponse(BaseModel):
     viewport: Optional[BrowserViewport] = None
     """Initial browser window size in pixels with optional refresh rate.
 
-    If omitted, image defaults apply (1920x1080@25). Only specific viewport
-    configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25,
-    1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not
-    provided, it will be automatically determined from the width and height if they
-    match a supported configuration exactly. Note: Higher resolutions may affect the
-    responsiveness of live view browser
+    If omitted, image defaults apply (1920x1080@25). Arbitrary viewport dimensions
+    are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60,
+    1200x800@60. Viewports outside this list may exhibit unstable live view or
+    recording behavior. If refresh_rate is not provided, it will be automatically
+    determined based on the resolution (higher resolutions use lower refresh rates
+    to keep bandwidth reasonable).
     """
diff --git a/src/kernel/types/invocation_list_browsers_response.py b/src/kernel/types/invocation_list_browsers_response.py
index 4d41a298..619fdcea 100644
--- a/src/kernel/types/invocation_list_browsers_response.py
+++ b/src/kernel/types/invocation_list_browsers_response.py
@@ -54,13 +54,13 @@ class Browser(BaseModel):
     viewport: Optional[BrowserViewport] = None
     """Initial browser window size in pixels with optional refresh rate.
 
-    If omitted, image defaults apply (1920x1080@25). Only specific viewport
-    configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25,
-    1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60 If refresh_rate is not
-    provided, it will be automatically determined from the width and height if they
-    match a supported configuration exactly. Note: Higher resolutions may affect the
-    responsiveness of live view browser
+    If omitted, image defaults apply (1920x1080@25). Arbitrary viewport dimensions
+    are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60,
+    1200x800@60. Viewports outside this list may exhibit unstable live view or
+    recording behavior. If refresh_rate is not provided, it will be automatically
+    determined based on the resolution (higher resolutions use lower refresh rates
+    to keep bandwidth reasonable).
     """
 
 
diff --git a/src/kernel/types/shared/browser_viewport.py b/src/kernel/types/shared/browser_viewport.py
index 2329dd75..dacac1f2 100644
--- a/src/kernel/types/shared/browser_viewport.py
+++ b/src/kernel/types/shared/browser_viewport.py
@@ -11,10 +11,11 @@ class BrowserViewport(BaseModel):
     """Initial browser window size in pixels with optional refresh rate.
 
     If omitted, image defaults apply (1920x1080@25).
-    Only specific viewport configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60
-    If refresh_rate is not provided, it will be automatically determined from the width and height if they match a supported configuration exactly.
-    Note: Higher resolutions may affect the responsiveness of live view browser
+    Arbitrary viewport dimensions are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60.
+    Viewports outside this list may exhibit unstable live view or recording behavior.
+    If refresh_rate is not provided, it will be automatically determined based on the resolution
+    (higher resolutions use lower refresh rates to keep bandwidth reasonable).
     """
 
     height: int
diff --git a/src/kernel/types/shared_params/browser_viewport.py b/src/kernel/types/shared_params/browser_viewport.py
index 7041ea55..f98ece82 100644
--- a/src/kernel/types/shared_params/browser_viewport.py
+++ b/src/kernel/types/shared_params/browser_viewport.py
@@ -11,10 +11,11 @@ class BrowserViewport(TypedDict, total=False):
     """Initial browser window size in pixels with optional refresh rate.
 
     If omitted, image defaults apply (1920x1080@25).
-    Only specific viewport configurations are supported. The server will reject unsupported combinations.
-    Supported resolutions are: 2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60
-    If refresh_rate is not provided, it will be automatically determined from the width and height if they match a supported configuration exactly.
-    Note: Higher resolutions may affect the responsiveness of live view browser
+    Arbitrary viewport dimensions are accepted, but the following configurations are known-good and fully tested:
+    2560x1440@10, 1920x1080@25, 1920x1200@25, 1440x900@25, 1280x800@60, 1024x768@60, 1200x800@60.
+    Viewports outside this list may exhibit unstable live view or recording behavior.
+    If refresh_rate is not provided, it will be automatically determined based on the resolution
+    (higher resolutions use lower refresh rates to keep bandwidth reasonable).
     """
 
     height: Required[int]

From 38e5906f78cf4edb3d02625fc6d9f37814c0bff7 Mon Sep 17 00:00:00 2001
From: "stainless-app[bot]"
 <142633134+stainless-app[bot]@users.noreply.github.com>
Date: Fri, 13 Feb 2026 22:14:50 +0000
Subject: [PATCH 5/5] release: 0.34.0

---
 .release-please-manifest.json |  2 +-
 CHANGELOG.md                  | 15 +++++++++++++++
 pyproject.toml                |  2 +-
 src/kernel/_version.py        |  2 +-
 4 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 57dc0c3d..e4e1c3ce 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.33.0"
+  ".": "0.34.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37533b7a..66086231 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog
 
+## 0.34.0 (2026-02-13)
+
+Full Changelog: [v0.33.0...v0.34.0](https://github.com/kernel/kernel-python-sdk/compare/v0.33.0...v0.34.0)
+
+### Features
+
+* Add error_code field to ManagedAuthSession and related components ([9d160d7](https://github.com/kernel/kernel-python-sdk/commit/9d160d798b25fc5416a2cce84b2ad8e2fc46f801))
+* Allow arbitrary viewport dimensions ([6463d9f](https://github.com/kernel/kernel-python-sdk/commit/6463d9fdb94477867d82fd69630688878c79b182))
+
+
+### Chores
+
+* format all `api.md` files ([c4ea333](https://github.com/kernel/kernel-python-sdk/commit/c4ea333ede664dbaa38911b1f97310e0b8a9618f))
+* **internal:** fix lint error on Python 3.14 ([96a4f24](https://github.com/kernel/kernel-python-sdk/commit/96a4f241bdf8dffe57c91140bf33f54a2c21a223))
+
 ## 0.33.0 (2026-02-11)
 
 Full Changelog: [v0.32.0...v0.33.0](https://github.com/kernel/kernel-python-sdk/compare/v0.32.0...v0.33.0)
diff --git a/pyproject.toml b/pyproject.toml
index 9eabe4e5..b7f4fe64 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "kernel"
-version = "0.33.0"
+version = "0.34.0"
 description = "The official Python library for the kernel API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/kernel/_version.py b/src/kernel/_version.py
index 8f653388..23d2f207 100644
--- a/src/kernel/_version.py
+++ b/src/kernel/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "kernel"
-__version__ = "0.33.0"  # x-release-please-version
+__version__ = "0.34.0"  # x-release-please-version