Merge upstream/main into main, keep Nordlys-Labs import paths

Author: botirk38

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup go
         uses: actions/setup-go@v5
@@ -35,7 +35,7 @@ jobs:
     runs-on: ${{ github.repository == 'stainless-sdks/anthropic-go' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup go
         uses: actions/setup-go@v5

.github/workflows/claude.yml

@@ -0,0 +1,50 @@
+name: Claude Code
+
+on:
+  issue_comment:
+    types: [created]
+  pull_request_review_comment:
+    types: [created]
+  issues:
+    types: [opened, assigned]
+  pull_request_review:
+    types: [submitted]
+
+jobs:
+  claude:
+    if: |
+      (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) ||
+      (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude')) ||
+      (github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude')) ||
+      (github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')))
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: read
+      issues: read
+      id-token: write
+      actions: read # Required for Claude to read CI results on PRs
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: Run Claude Code
+        id: claude
+        uses: anthropics/claude-code-action@v1
+        with:
+          anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
+
+          # This is an optional setting that allows Claude to read CI results on PRs
+          additional_permissions: |
+            actions: read
+
+          # Optional: Give a custom prompt to Claude. If this is not specified, Claude will perform the instructions specified in the comment that tagged it.
+          # prompt: 'Update the pull request description to include a summary of changes.'
+
+          # Optional: Add claude_args to customize behavior and configuration
+          # See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md
+          # or https://code.claude.com/docs/en/cli-reference for available options
+          # claude_args: '--allowed-tools Bash(gh pr:*)'
+

.github/workflows/create-releases.yml

@@ -14,7 +14,7 @@ jobs:
     environment: production-release
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: stainless-api/trigger-release-please@v1
         id: release

.github/workflows/detect-breaking-changes.yml

@@ -15,7 +15,7 @@ jobs:
         run: |
           echo "FETCH_DEPTH=$(expr ${{ github.event.pull_request.commits }} + 1)" >> $GITHUB_ENV
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           # Ensure we can check out the pull request base in the script below.
           fetch-depth: ${{ env.FETCH_DEPTH }}

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.19.0"
+  ".": "1.22.1"
 }

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 34
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic%2Fanthropic-a49e89deec4e00d1da490808099d66e2001531b12d8666a7f5d0b496f760440d.yml
-openapi_spec_hash: c93ef3808c58e233b01966ff154f31ce
-config_hash: 7e9dfe17ab5c80abee5372ce746a926e
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic%2Fanthropic-fee5dc365a4948e68639582c5301d4d0666c7d85a11628d7917e1477f76d3da1.yml
+openapi_spec_hash: d5543958074cd2bd74096cd69f3bb4f9
+config_hash: 8739bb23213865e8ad45a32ba99a4de1

CHANGELOG.md

@@ -1,5 +1,68 @@
 # Changelog
 
+## 1.22.1 (2026-02-10)
+
+Full Changelog: [v1.22.0...v1.22.1](https://github.com/anthropics/anthropic-sdk-go/compare/v1.22.0...v1.22.1)
+
+### Bug Fixes
+
+* **encoder:** correctly serialize NullStruct ([1435f8a](https://github.com/anthropics/anthropic-sdk-go/commit/1435f8ac4d272561c7e689cc6bb4e3794414ba57))
+
+## 1.22.0 (2026-02-07)
+
+Full Changelog: [v1.21.0...v1.22.0](https://github.com/anthropics/anthropic-sdk-go/compare/v1.21.0...v1.22.0)
+
+### Features
+
+* **api:** enabling fast-mode in claude-opus-4-6 ([ebe6433](https://github.com/anthropics/anthropic-sdk-go/commit/ebe6433768cab86dcc02b71159aaa347a8d473ec))
+
+## 1.21.0 (2026-02-05)
+
+Full Changelog: [v1.20.0...v1.21.0](https://github.com/anthropics/anthropic-sdk-go/compare/v1.20.0...v1.21.0)
+
+### Features
+
+* **api:** Release Claude Opus 4.6, adaptive thinking, and other features ([e899e64](https://github.com/anthropics/anthropic-sdk-go/commit/e899e64cd402eb004909d632e68acc4b0587f53c))
+
+
+### Chores
+
+* **ci:** remove claude-code-review workflow ([31db702](https://github.com/anthropics/anthropic-sdk-go/commit/31db70249f691b161f326f550dc26cdcce54dd30))
+
+## 1.20.0 (2026-01-29)
+
+Full Changelog: [v1.19.0...v1.20.0](https://github.com/anthropics/anthropic-sdk-go/compare/v1.19.0...v1.20.0)
+
+### Features
+
+* **api:** add support for Structured Outputs in the Messages API ([10c3821](https://github.com/anthropics/anthropic-sdk-go/commit/10c382188df98d7b045aec525bdc47f3df25d576))
+* **api:** migrate sending message format in output_config rather than output_format ([f996db4](https://github.com/anthropics/anthropic-sdk-go/commit/f996db402bc1f868b11d877014a6c51d977c557f))
+* **client:** add a convenient param.SetJSON helper ([427514e](https://github.com/anthropics/anthropic-sdk-go/commit/427514ea6dde81f4eb374967577b5a4cf380f627))
+* **encoder:** support bracket encoding form-data object members ([eaaeadf](https://github.com/anthropics/anthropic-sdk-go/commit/eaaeadf6dd67119ca4406f0fb0337c16d9011b8f))
+
+
+### Bug Fixes
+
+* **accumulator:** revert to marshal accumulator on stop events ([#563](https://github.com/anthropics/anthropic-sdk-go/issues/563)) ([096a8a8](https://github.com/anthropics/anthropic-sdk-go/commit/096a8a8b20b530359c214e06272938bcf8a98c59))
+* **client:** retain streaming when user sets request body ([6d073fe](https://github.com/anthropics/anthropic-sdk-go/commit/6d073fe49f351c26c7f3fa8337e661c6a3600c68))
+* **docs:** add missing pointer prefix to api.md return types ([23aaf6d](https://github.com/anthropics/anthropic-sdk-go/commit/23aaf6de59f0c13c79dbe4fc1d764b47cfd83834))
+* **mcp:** correct code tool API endpoint ([6c8a083](https://github.com/anthropics/anthropic-sdk-go/commit/6c8a0831e6f084d316179a9288c4fa1c5420ea59))
+* rename param to avoid collision ([6d1cf75](https://github.com/anthropics/anthropic-sdk-go/commit/6d1cf75d5a407d5eb19c70e3778ab82bca74d0d5))
+* streaming endpoints should pass through errors correctly ([e584c87](https://github.com/anthropics/anthropic-sdk-go/commit/e584c87ec001ee8991ca17b8236a6ef3deb78ea7))
+* **to-param:** remove panics and add cases ([#524](https://github.com/anthropics/anthropic-sdk-go/issues/524)) ([f689816](https://github.com/anthropics/anthropic-sdk-go/commit/f6898163047854d39cec7c08ec5ab993bab463fc))
+
+
+### Chores
+
+* add float64 to valid types for RegisterFieldValidator ([b6bec73](https://github.com/anthropics/anthropic-sdk-go/commit/b6bec73c5ed18698884b990fc3dc6398a3784177))
+* **ci:** Add Claude Code GitHub Workflow ([a151836](https://github.com/anthropics/anthropic-sdk-go/commit/a151836056343974d15eda64180fc776ba0f169d))
+* **client:** improve example values ([8af69b8](https://github.com/anthropics/anthropic-sdk-go/commit/8af69b851f4a60334ed75542c2eacbe69c01893c))
+* **client:** mark claude-3-5-haiku as deprecated ([dcac65c](https://github.com/anthropics/anthropic-sdk-go/commit/dcac65c8dd82f232c2997456319c16357874f37b))
+* elide duplicate aliases ([c8e2ee1](https://github.com/anthropics/anthropic-sdk-go/commit/c8e2ee14de53b5636eadccb2a890e4464e30b8d4))
+* **internal:** codegen related update ([931c976](https://github.com/anthropics/anthropic-sdk-go/commit/931c9769f1ff0557a8eff333463e1847b15f7953))
+* **internal:** update `actions/checkout` version ([3bd83ec](https://github.com/anthropics/anthropic-sdk-go/commit/3bd83eca53f1ec0b759c2568601286405821dcbc))
+* **internal:** use different example values for some enums ([f2d46b8](https://github.com/anthropics/anthropic-sdk-go/commit/f2d46b87de1a57ed1790cad3134b5e340f22fd73))
+
 ## 1.19.0 (2025-11-24)
 
 Full Changelog: [v1.18.1...v1.19.0](https://github.com/anthropics/anthropic-sdk-go/compare/v1.18.1...v1.19.0)

README.md

@@ -26,7 +26,7 @@ Or to pin the version:
 <!-- x-release-please-start-version -->
 
 ```sh
-go get -u 'github.com/Nordlys-Labs/anthropic-sdk-go@v1.19.0'
+go get -u 'github.com/Nordlys-Labs/anthropic-sdk-go@v1.22.1'
 ```
 
 <!-- x-release-please-end -->
@@ -59,7 +59,7 @@ func main() {
 		Messages: []anthropic.MessageParam{
 			anthropic.NewUserMessage(anthropic.NewTextBlock("What is a quaternion?")),
 		},
-		Model: anthropic.ModelClaudeOpus4_5_20251101,
+		Model: anthropic.ModelClaudeSonnet4_5_20250929,
 	})
 	if err != nil {
 		panic(err.Error())
@@ -571,9 +571,9 @@ _, err := client.Messages.New(context.TODO(), anthropic.MessageNewParams{
 	MaxTokens: 1024,
 	Messages: []anthropic.MessageParam{{
 		Content: []anthropic.ContentBlockParamUnion{{
-			OfText: &anthropic.TextBlockParam{Text: "What is a quaternion?", CacheControl: anthropic.CacheControlEphemeralParam{TTL: anthropic.CacheControlEphemeralTTLTTL5m}, Citations: []anthropic.TextCitationParamUnion{{
-				OfCharLocation: &anthropic.CitationCharLocationParam{CitedText: "cited_text", DocumentIndex: 0, DocumentTitle: anthropic.String("x"), EndCharIndex: 0, StartCharIndex: 0},
-			}}},
+			OfText: &anthropic.TextBlockParam{
+				Text: "x",
+			},
 		}},
 		Role: anthropic.MessageParamRoleUser,
 	}},
@@ -610,11 +610,13 @@ client.Messages.New(
 		MaxTokens: 1024,
 		Messages: []anthropic.MessageParam{{
 			Content: []anthropic.ContentBlockParamUnion{{
-				OfRequestTextBlock: &anthropic.TextBlockParam{Text: "What is a quaternion?"},
+				OfText: &anthropic.TextBlockParam{
+					Text: "What is a quaternion?",
+				},
 			}},
 			Role: anthropic.MessageParamRoleUser,
 		}},
-		Model: anthropic.ModelClaudeOpus4_5_20251101,
+		Model: anthropic.ModelClaudeSonnet4_5_20250929,
 	},
 	// This sets the per-retry timeout
 	option.WithRequestTimeout(20*time.Second),
@@ -680,11 +682,13 @@ client.Messages.New(
 		MaxTokens: 1024,
 		Messages: []anthropic.MessageParam{{
 			Content: []anthropic.ContentBlockParamUnion{{
-				OfRequestTextBlock: &anthropic.TextBlockParam{Text: "What is a quaternion?"},
+				OfText: &anthropic.TextBlockParam{
+					Text: "What is a quaternion?",
+				},
 			}},
 			Role: anthropic.MessageParamRoleUser,
 		}},
-		Model: anthropic.ModelClaudeOpus4_5_20251101,
+		Model: anthropic.ModelClaudeSonnet4_5_20250929,
 	},
 	option.WithMaxRetries(5),
 )
@@ -704,13 +708,13 @@ message, err := client.Messages.New(
 		MaxTokens: 1024,
 		Messages: []anthropic.MessageParam{{
 			Content: []anthropic.ContentBlockParamUnion{{
-				OfText: &anthropic.TextBlockParam{Text: "What is a quaternion?", CacheControl: anthropic.CacheControlEphemeralParam{TTL: anthropic.CacheControlEphemeralTTLTTL5m}, Citations: []anthropic.TextCitationParamUnion{{
-					OfCharLocation: &anthropic.CitationCharLocationParam{CitedText: "cited_text", DocumentIndex: 0, DocumentTitle: anthropic.String("x"), EndCharIndex: 0, StartCharIndex: 0},
-				}}},
+				OfText: &anthropic.TextBlockParam{
+					Text: "x",
+				},
 			}},
 			Role: anthropic.MessageParamRoleUser,
 		}},
-		Model: anthropic.ModelClaudeOpus4_5_20251101,
+		Model: anthropic.ModelClaudeSonnet4_5_20250929,
 	},
 	option.WithResponseInto(&response),
 )
@@ -835,7 +839,56 @@ func main() {
 
 If you already have an `aws.Config`, you can also use it directly with `bedrock.WithConfig(cfg)`.
 
-Read more about Anthropic and Amazon Bedrock [here](https://docs.anthropic.com/en/api/claude-on-amazon-bedrock).
+### Bearer Token Authentication
+
+You can also authenticate with Bedrock using bearer tokens instead of AWS credentials. This is useful in corporate environments where teams need access to Bedrock without managing AWS credentials, IAM roles, or account-level permissions.
+
+The simplest approach is to set the `AWS_BEARER_TOKEN_BEDROCK` environment variable:
+
+```go
+package main
+
+import (
+	"context"
+
+	"github.com/anthropics/anthropic-sdk-go"
+	"github.com/anthropics/anthropic-sdk-go/bedrock"
+)
+
+func main() {
+	// Automatically uses AWS_BEARER_TOKEN_BEDROCK from the environment.
+	// Region defaults to us-east-1 or uses AWS_REGION if set.
+	client := anthropic.NewClient(
+		bedrock.WithLoadDefaultConfig(context.Background()),
+	)
+}
+```
+
+To provide a token programmatically, use `bedrock.WithConfig` with a `BearerAuthTokenProvider`:
+
+```go
+package main
+
+import (
+	"context"
+
+	"github.com/anthropics/anthropic-sdk-go"
+	"github.com/anthropics/anthropic-sdk-go/bedrock"
+	"github.com/aws/aws-sdk-go-v2/aws"
+)
+
+func main() {
+	cfg := aws.Config{
+		Region:                  "us-west-2",
+		BearerAuthTokenProvider: bedrock.NewStaticBearerTokenProvider("your-bearer-token"),
+	}
+	client := anthropic.NewClient(
+		bedrock.WithConfig(cfg),
+	)
+}
+```
+
+Read more about Anthropic and Amazon Bedrock [here](https://docs.anthropic.com/en/api/claude-on-amazon-bedrock) and about Bedrock API keys [here](https://docs.aws.amazon.com/bedrock/latest/userguide/api-keys-use.html).
 
 ## Google Vertex AI