release: 2.12.0

.github/workflows/ci.yml

@@ -20,10 +20,10 @@ jobs:
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: |
@@ -40,14 +40,17 @@ jobs:
   build:
     timeout-minutes: 15
     name: build
+    permissions:
+      contents: read
+      id-token: write
     runs-on: ${{ github.repository == 'stainless-sdks/anthropic-java' && '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: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: |
@@ -61,16 +64,31 @@ jobs:
       - name: Build SDK
         run: ./scripts/build
 
+      - name: Get GitHub OIDC Token
+        if: github.repository == 'stainless-sdks/anthropic-java'
+        id: github-oidc
+        uses: actions/github-script@v6
+        with:
+          script: core.setOutput('github_token', await core.getIDToken());
+
+      - name: Build and upload Maven artifacts
+        if: github.repository == 'stainless-sdks/anthropic-java'
+        env:
+          URL: https://pkg.stainless.com/s
+          AUTH: ${{ steps.github-oidc.outputs.github_token }}
+          SHA: ${{ github.sha }}
+          PROJECT: anthropic-java
+        run: ./scripts/upload-artifacts
   test:
     timeout-minutes: 15
     name: test
     runs-on: ${{ github.repository == 'stainless-sdks/anthropic-java' && '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: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: |

.github/workflows/claude-code-review.yml

@@ -0,0 +1,57 @@
+name: Claude Code Review
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+    # Optional: Only run on specific file changes
+    # paths:
+    #   - "src/**/*.ts"
+    #   - "src/**/*.tsx"
+    #   - "src/**/*.js"
+    #   - "src/**/*.jsx"
+
+jobs:
+  claude-review:
+    # Optional: Filter by PR author
+    # if: |
+    #   github.event.pull_request.user.login == 'external-contributor' ||
+    #   github.event.pull_request.user.login == 'new-developer' ||
+    #   github.event.pull_request.author_association == 'FIRST_TIME_CONTRIBUTOR'
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: read
+      issues: read
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: Run Claude Code Review
+        id: claude-review
+        uses: anthropics/claude-code-action@v1
+        with:
+          anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
+          prompt: |
+            REPO: ${{ github.repository }}
+            PR NUMBER: ${{ github.event.pull_request.number }}
+
+            Please review this pull request and provide feedback on:
+            - Code quality and best practices
+            - Potential bugs or issues
+            - Performance considerations
+            - Security concerns
+            - Test coverage
+
+            Use the repository's CLAUDE.md for guidance on style and conventions. Be constructive and helpful in your feedback.
+
+            Use `gh pr comment` with your Bash tool to leave your review as a comment on the PR.
+
+          # 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 issue view:*),Bash(gh search:*),Bash(gh issue list:*),Bash(gh pr comment:*),Bash(gh pr diff:*),Bash(gh pr view:*),Bash(gh pr list:*)"'
+

.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
@@ -24,7 +24,7 @@ jobs:
 
       - name: Set up Java
         if: ${{ steps.release.outputs.releases_created }}
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: |

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

@@ -15,13 +15,13 @@ 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 }}
 
       - name: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: |

.github/workflows/publish-sonatype.yml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: |

.github/workflows/release-doctor.yml

@@ -13,7 +13,7 @@ jobs:
     if: github.repository == 'anthropics/anthropic-sdk-java' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch' || startsWith(github.head_ref, 'release-please') || github.head_ref == 'next')
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Check release environment
         run: |

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "2.11.1"
+  ".": "2.12.0"
 }

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 34
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic%2Fanthropic-2f35b2ff9174d526a6d35796d2703490bfa5692312af67cbdfa4500283dabe31.yml
-openapi_spec_hash: dc52b25c487e97d355ef645644aa13e7
-config_hash: d23c4d678fcf7ff829a2891b3196edb6
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic%2Fanthropic-f7bcdc13402c6129b30be620021a724945de44cffc6add091798f9cce33a1e32.yml
+openapi_spec_hash: e78807e31b9233abc50ccc00304bfa4d
+config_hash: 92ca93edc068c543f2da38737239322d

CHANGELOG.md

@@ -1,5 +1,56 @@
 # Changelog
 
+## 2.12.0 (2026-01-25)
+
+Full Changelog: [v2.11.1...v2.12.0](https://github.com/anthropics/anthropic-sdk-java/compare/v2.11.1...v2.12.0)
+
+### Features
+
+* add output_config to message create params ([4c4bb5d](https://github.com/anthropics/anthropic-sdk-java/commit/4c4bb5ddfe4d31c28c15f2ed2528825512bf2216))
+* **api:** Add new methods to tests ([#748](https://github.com/anthropics/anthropic-sdk-java/issues/748)) ([2c2ebdc](https://github.com/anthropics/anthropic-sdk-java/commit/2c2ebdc6a732b4adf595dbe1b422da1b02fc000f))
+* **api:** adds support for Claude Opus 4.5, Effort, Advance Tool Use Features, Autocompaction, and Computer Use v5 ([4689271](https://github.com/anthropics/anthropic-sdk-java/commit/4689271c4dba2de056356d314429af36b7ad7205))
+* **api:** migrate sending message format in output_config rather than output_format ([c0103c6](https://github.com/anthropics/anthropic-sdk-java/commit/c0103c6f83ce4df65bab9aaa7def6d628c644a64))
+* **api:** migrate sending message format in output_config rather than output_format ([a6ea665](https://github.com/anthropics/anthropic-sdk-java/commit/a6ea6657640fcd0ec4c9645503d0d87843ec094b))
+* **client:** add `HttpRequest#url()` method ([49afe52](https://github.com/anthropics/anthropic-sdk-java/commit/49afe52d1f478b167d343a94e703d75abc5e09ba))
+* **client:** allow configuring dispatcher executor service ([60554ea](https://github.com/anthropics/anthropic-sdk-java/commit/60554eafb104057399672deefe0bbdb9b82c64bb))
+* **client:** support Anthropic models on Microsoft Foundry ([#698](https://github.com/anthropics/anthropic-sdk-java/issues/698)) ([8077051](https://github.com/anthropics/anthropic-sdk-java/commit/80770511530e0a897d55aeebcaa307d679147f1d))
+
+
+### Bug Fixes
+
+* **client:** BetaMessageAccumulator crash on empty tool input ([e0fe678](https://github.com/anthropics/anthropic-sdk-java/commit/e0fe6788bd8a5529fdc493e73cbc532497622bc3))
+* **client:** cancel okhttp call when future cancelled ([b52f783](https://github.com/anthropics/anthropic-sdk-java/commit/b52f7831db730af1e398df4362b84002f82d025e))
+* **client:** disallow coercion from float to int ([492286b](https://github.com/anthropics/anthropic-sdk-java/commit/492286bc3dfe1848cfa4b3002f0578124a68b00f))
+* **client:** fully respect max retries ([e593174](https://github.com/anthropics/anthropic-sdk-java/commit/e593174c6fd274c420329614bcffae64dfd80b00))
+* **client:** implement visitToolSearchToolResult for Beta Accumulator ([41191ed](https://github.com/anthropics/anthropic-sdk-java/commit/41191edae162caaf9572c5d1d786160413bdc39c))
+* **client:** run linter ([73e141d](https://github.com/anthropics/anthropic-sdk-java/commit/73e141d1df0cd094f6544b2bd51d5fccf989f28a))
+* **client:** send retry count header for max retries 0 ([e593174](https://github.com/anthropics/anthropic-sdk-java/commit/e593174c6fd274c420329614bcffae64dfd80b00))
+* date time deserialization leniency ([f6f7ad1](https://github.com/anthropics/anthropic-sdk-java/commit/f6f7ad13a7774c92079dbed38944369f519ebcf8))
+* remove duplicate code ([937b34f](https://github.com/anthropics/anthropic-sdk-java/commit/937b34fbf088b9c13fa12b0bf57f47c291313d1c))
+* resolve lint error ([db08d1c](https://github.com/anthropics/anthropic-sdk-java/commit/db08d1c5b636cea5587194659931de60a4b88683))
+
+
+### Chores
+
+* **ci:** add Claude Code GitHub Workflow ([4eec6e8](https://github.com/anthropics/anthropic-sdk-java/commit/4eec6e844e9914150462ccbe017be1f2acfcd34a))
+* **ci:** upgrade `actions/setup-java` ([de57407](https://github.com/anthropics/anthropic-sdk-java/commit/de574074e5343cc7fcc959db5d5c37fc0f70f467))
+* **client:** mark claude-3-5-haiku as deprecated ([46bf679](https://github.com/anthropics/anthropic-sdk-java/commit/46bf679190664f37269dabcefcff82c4bad7f899))
+* fix merge conflict ([e307fa0](https://github.com/anthropics/anthropic-sdk-java/commit/e307fa0b01207b77210cfc1c6957ca8f4ffbfb5b))
+* fix test ([b612010](https://github.com/anthropics/anthropic-sdk-java/commit/b612010dd341f8f7ebcdf2cd719db9f45ef36841))
+* **internal:** clean up maven repo artifact script and add html documentation to repo root ([d319dd7](https://github.com/anthropics/anthropic-sdk-java/commit/d319dd7ac5f06a1a575f5cb9ad8508a4b5d365d3))
+* **internal:** depend on packages directly in example ([e593174](https://github.com/anthropics/anthropic-sdk-java/commit/e593174c6fd274c420329614bcffae64dfd80b00))
+* **internal:** improve maven repo docs ([852f6dc](https://github.com/anthropics/anthropic-sdk-java/commit/852f6dcc104540ef4871e94de2ed1b9f714f341a))
+* **internal:** support uploading Maven repo artifacts to stainless package server ([17e663a](https://github.com/anthropics/anthropic-sdk-java/commit/17e663afa3096c8869bcce18aa2753f23b3320c0))
+* **internal:** update `actions/checkout` version ([7fd4f0a](https://github.com/anthropics/anthropic-sdk-java/commit/7fd4f0aeed9b6dee1d94361b0c654339f3cfb5ba))
+* **internal:** update maven repo doc to include authentication ([23d5c76](https://github.com/anthropics/anthropic-sdk-java/commit/23d5c762fd608220a520562c66a040a2b642c505))
+* **internal:** use different example values for some enums ([5d45a2f](https://github.com/anthropics/anthropic-sdk-java/commit/5d45a2fbd45aa2fb6561063f80bc2ca984a76150))
+* test on Jackson 2.14.0 to avoid encountering FasterXML/jackson-databind[#3240](https://github.com/anthropics/anthropic-sdk-java/issues/3240) in tests ([f6f7ad1](https://github.com/anthropics/anthropic-sdk-java/commit/f6f7ad13a7774c92079dbed38944369f519ebcf8))
+
+
+### Documentation
+
+* remove `$` for better copy-pasteabality ([b2315f9](https://github.com/anthropics/anthropic-sdk-java/commit/b2315f9d756ad473cd52c4daf52590341e9d3bce))
+
 ## 2.11.1 (2025-11-19)
 
 Full Changelog: [v2.11.0...v2.11.1](https://github.com/anthropics/anthropic-sdk-java/compare/v2.11.0...v2.11.1)