kernel · stainless-app · Feb 12, 2026 · Feb 13, 2026 · Feb 13, 2026
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.33.0"
+  ".": "0.34.0"
 }
diff --git 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-47ee6a2b624baddb41a681feff758bf1893cd3d65edf3ab51219ebe4d942932b.yml
+openapi_spec_hash: 76178c41ede593e76bfacb176057d2f0
 config_hash: 27c0ea01aeb797a1767af139851c5b66
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## 0.34.0 (2026-02-13)
+
+Full Changelog: [v0.33.0...v0.34.0](https://github.com/kernel/kernel-go-sdk/compare/v0.33.0...v0.34.0)
+
+### Features
+
+* Add error_code field to ManagedAuthSession and related components ([09fcbf2](https://github.com/kernel/kernel-go-sdk/commit/09fcbf20f9dfc15b1b279089a9c7e1ff7f6967fc))
+* Allow arbitrary viewport dimensions ([7460146](https://github.com/kernel/kernel-go-sdk/commit/746014666e64ce99d97e5eb44986e6360b93b5e1))
+
 ## 0.33.0 (2026-02-11)
 
 Full Changelog: [v0.32.0...v0.33.0](https://github.com/kernel/kernel-go-sdk/compare/v0.32.0...v0.33.0)

diff --git a/README.md b/README.md
@@ -28,7 +28,7 @@ Or to pin the version:
 <!-- x-release-please-start-version -->
 
 ```sh
-go get -u 'github.com/kernel/kernel-go-sdk@v0.33.0'
+go get -u 'github.com/kernel/kernel-go-sdk@v0.34.0'
 ```
 
 <!-- x-release-please-end -->

diff --git a/aliases.go b/aliases.go
@@ -48,25 +48,25 @@ type BrowserProfile = shared.BrowserProfile
 type BrowserProfileParam = shared.BrowserProfileParam
 
 // 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).
 //
 // This is an alias to an internal type.
 type BrowserViewport = shared.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
+// 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).
 //
 // This is an alias to an internal type.
 type BrowserViewportParam = shared.BrowserViewportParam

diff --git a/authconnection.go b/authconnection.go
@@ -243,6 +243,8 @@ type ManagedAuth struct {
 	Credential ManagedAuthCredential `json:"credential"`
 	// Fields awaiting input (present when flow_step=awaiting_input)
 	DiscoveredFields []ManagedAuthDiscoveredField `json:"discovered_fields,nullable"`
+	// Machine-readable error code (present when flow_status=failed)
+	ErrorCode string `json:"error_code,nullable"`
 	// Error message (present when flow_status=failed)
 	ErrorMessage string `json:"error_message,nullable"`
 	// Instructions for external action (present when
@@ -301,6 +303,7 @@ type ManagedAuth struct {
 		CanReauthReason       respjson.Field
 		Credential            respjson.Field
 		DiscoveredFields      respjson.Field
+		ErrorCode             respjson.Field
 		ErrorMessage          respjson.Field
 		ExternalActionMessage respjson.Field
 		FlowExpiresAt         respjson.Field
@@ -648,6 +651,8 @@ type AuthConnectionFollowResponseUnion struct {
 	// This field is from variant [AuthConnectionFollowResponseManagedAuthState].
 	DiscoveredFields []AuthConnectionFollowResponseManagedAuthStateDiscoveredField `json:"discovered_fields"`
 	// This field is from variant [AuthConnectionFollowResponseManagedAuthState].
+	ErrorCode string `json:"error_code"`
+	// This field is from variant [AuthConnectionFollowResponseManagedAuthState].
 	ErrorMessage string `json:"error_message"`
 	// This field is from variant [AuthConnectionFollowResponseManagedAuthState].
 	ExternalActionMessage string `json:"external_action_message"`
@@ -673,6 +678,7 @@ type AuthConnectionFollowResponseUnion struct {
 		FlowStep              respjson.Field
 		Timestamp             respjson.Field
 		DiscoveredFields      respjson.Field
+		ErrorCode             respjson.Field
 		ErrorMessage          respjson.Field
 		ExternalActionMessage respjson.Field
 		FlowType              respjson.Field
@@ -756,6 +762,8 @@ type AuthConnectionFollowResponseManagedAuthState struct {
 	Timestamp time.Time `json:"timestamp,required" format:"date-time"`
 	// Fields awaiting input (present when flow_step=AWAITING_INPUT).
 	DiscoveredFields []AuthConnectionFollowResponseManagedAuthStateDiscoveredField `json:"discovered_fields"`
+	// Machine-readable error code (present when flow_status=FAILED).
+	ErrorCode string `json:"error_code"`
 	// Error message (present when flow_status=FAILED).
 	ErrorMessage string `json:"error_message"`
 	// Instructions for external action (present when
@@ -786,6 +794,7 @@ type AuthConnectionFollowResponseManagedAuthState struct {
 		FlowStep              respjson.Field
 		Timestamp             respjson.Field
 		DiscoveredFields      respjson.Field
+		ErrorCode             respjson.Field
 		ErrorMessage          respjson.Field
 		ExternalActionMessage respjson.Field
 		FlowType              respjson.Field

diff --git a/browser.go b/browser.go
@@ -260,13 +260,13 @@ type BrowserNewResponse struct {
 	// ID of the proxy associated with this browser session, if any.
 	ProxyID string `json:"proxy_id"`
 	// 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).
 	Viewport shared.BrowserViewport `json:"viewport"`
 	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
 	JSON struct {
@@ -323,13 +323,13 @@ type BrowserGetResponse struct {
 	// ID of the proxy associated with this browser session, if any.
 	ProxyID string `json:"proxy_id"`
 	// 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).
 	Viewport shared.BrowserViewport `json:"viewport"`
 	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
 	JSON struct {
@@ -386,13 +386,13 @@ type BrowserUpdateResponse struct {
 	// ID of the proxy associated with this browser session, if any.
 	ProxyID string `json:"proxy_id"`
 	// 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).
 	Viewport shared.BrowserViewport `json:"viewport"`
 	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
 	JSON struct {
@@ -449,13 +449,13 @@ type BrowserListResponse struct {
 	// ID of the proxy associated with this browser session, if any.
 	ProxyID string `json:"proxy_id"`
 	// 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).
 	Viewport shared.BrowserViewport `json:"viewport"`
 	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
 	JSON struct {
@@ -513,13 +513,13 @@ type BrowserNewParams struct {
 	// Profiles must be created beforehand.
 	Profile shared.BrowserProfileParam `json:"profile,omitzero"`
 	// 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).
 	Viewport shared.BrowserViewportParam `json:"viewport,omitzero"`
 	paramObj
 }

diff --git a/browserpool.go b/browserpool.go
@@ -196,13 +196,13 @@ type BrowserPoolBrowserPoolConfig struct {
 	// are destroyed. Defaults to 600 seconds if not specified
 	TimeoutSeconds int64 `json:"timeout_seconds"`
 	// 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).
 	Viewport shared.BrowserViewport `json:"viewport"`
 	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
 	JSON struct {
@@ -257,13 +257,13 @@ type BrowserPoolAcquireResponse struct {
 	// ID of the proxy associated with this browser session, if any.
 	ProxyID string `json:"proxy_id"`
 	// 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).
 	Viewport shared.BrowserViewport `json:"viewport"`
 	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
 	JSON struct {
@@ -321,13 +321,13 @@ type BrowserPoolNewParams struct {
 	// Profiles must be created beforehand.
 	Profile shared.BrowserProfileParam `json:"profile,omitzero"`
 	// 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).
 	Viewport shared.BrowserViewportParam `json:"viewport,omitzero"`
 	paramObj
 }
@@ -373,13 +373,13 @@ type BrowserPoolUpdateParams struct {
 	// Profiles must be created beforehand.
 	Profile shared.BrowserProfileParam `json:"profile,omitzero"`
 	// 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).
 	Viewport shared.BrowserViewportParam `json:"viewport,omitzero"`
 	paramObj
 }

diff --git a/internal/version.go b/internal/version.go
@@ -2,4 +2,4 @@
 
 package internal
 
-const PackageVersion = "0.33.0" // x-release-please-version
+const PackageVersion = "0.34.0" // x-release-please-version
Original file line number	Diff line number	Diff line change
Expand Up		@@ -2,4 +2,4 @@

		package internal

		const PackageVersion = "0.33.0" // x-release-please-version
		const PackageVersion = "0.34.0" // x-release-please-version