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release: 1.11.0#56

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Jun 9, 2026
Merged

release: 1.11.0#56
stainless-app[bot] merged 24 commits into
mainfrom
release-please--branches--main--changes--next

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@stainless-app stainless-app Bot commented May 29, 2026

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Automated Release PR

1.11.0 (2026-06-09)

Full Changelog: v1.10.0...v1.11.0

Features

  • api: add support for claude-mythos-5 and claude-fable-5, with support for server-side fallbacks on refusal (8302a45)
  • api: manual updates (c5d792d)
  • api: small updates to Managed Agents types (242c693)
  • client: adds client-side fallbacks middleware for API providers that do not support server-side fallbacks (8302a45)

Chores

  • internal: fix artifact url (20689c3)
  • internal: fix branch names (2168a5a)
  • internal: update private repo name (c4f0954)

Documentation

  • add animated terminal demo (7573585)
  • move development docs into CONTRIBUTING.md (ab8aed7)
  • point security reports to Anthropic's HackerOne program (#5) (f5c8f0f)
  • release-branch readiness sweep (model-release Step 5) + coverage-audit refinements (2454db4)
  • replace README demo GIF with webm and poster frame (46d7f93)
  • restore README demo GIF (46e0b71)
  • restructure README to match SDK conventions (e22f218)
  • update product name to Claude Platform (fa89021)
  • use claude-opus-4-8 in examples and lead with the ant name (8ecc617)

This pull request is managed by Stainless's GitHub App.

The semver version number is based on included commit messages. Alternatively, you can manually set the version number in the title of this pull request.

For a better experience, it is recommended to use either rebase-merge or squash-merge when merging this pull request.

🔗 Stainless website
📚 Read the docs
🙋 Reach out for help or questions

@stainless-app stainless-app Bot requested a review from a team as a code owner May 29, 2026 17:41
@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from a80344b to da06f43 Compare May 29, 2026 18:12
@stainless-app stainless-app Bot changed the title release: 1.11.0 release: 1.10.1 May 29, 2026
@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from da06f43 to 6c37695 Compare May 29, 2026 18:13
@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 6c37695 to 8b56659 Compare June 1, 2026 18:37
Vulnerability reports for the SDKs should go through Anthropic's
HackerOne program rather than security@stainless.com.
@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 8b56659 to 7add72a Compare June 2, 2026 15:30
@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 7add72a to d88245d Compare June 2, 2026 22:24
claude and others added 10 commits June 3, 2026 01:17
Add a demo GIF recorded with VHS (charmbracelet/vhs) showing the core CLI
workflow: creating a message, extracting a field with --transform, and
browsing a response in the interactive explorer.

The recording is reproducible: scripts/record-demo builds the CLI, starts a
local mock API server with deterministic responses, and re-runs vhs against
.github/demo.tape. No API credentials are required.

https://claude.ai/code/session_01HDgq9SNepGuDQBynKTPRy1
Rework the README to follow the same structure as the other Claude SDK
repositories: version badges, a Documentation section linking to the docs
site, Installation, a Getting started walkthrough, Requirements, and License.

- Add a GitHub release badge and a Homebrew tap badge
- Embed the animated terminal demo below the intro
- Lead Getting started with browser login (ant auth login) and update the
  first-message example to current model names and simpler message syntax
- Replace the flag and environment-variable reference tables with a short
  Usage section of runnable examples; defer the full reference to the docs
  site and --help
- Move contributor content (running locally, linking SDK versions,
  re-recording the demo) under a Development section

https://claude.ai/code/session_01HDgq9SNepGuDQBynKTPRy1
- Switch every example, the demo tape, and the mock recording data from
  claude-opus-4-6 to claude-opus-4-8, matching the CLI documentation
- Re-record the demo GIF with the new model name
- Rename the README title to "ant — Claude Platform CLI" and open the
  intro with the binary name so readers immediately know the command

https://claude.ai/code/session_01HDgq9SNepGuDQBynKTPRy1
Match the other SDK repos: the README keeps a short Contributing section
that links to CONTRIBUTING.md, which now holds environment setup, local
run/build, SDK linking, test, formatting, and demo re-recording docs.

https://claude.ai/code/session_01HDgq9SNepGuDQBynKTPRy1
GIF output is limited to 256 colors and bands on antialiased text. The
tape now renders a VP9 webm (384 KB vs 579 KB for the GIF). GitHub does
not play repo-committed videos inline in READMEs, so the README embeds
a poster frame extracted from the video that links to the webm, which
plays in GitHub's file viewer.

The record-demo script now extracts the poster frame automatically and
points ANTHROPIC_CONFIG_DIR at an empty directory so auth profiles on
the recording machine cannot leak warnings into the demo output.
GitHub only renders inline video players for files uploaded as
attachments through the web UI, not for videos committed to the repo,
so the webm embed showed a static poster frame instead of an animation.
An autoplaying GIF works better for the README demo.

Keep the recording fix that points ANTHROPIC_CONFIG_DIR at an empty
directory so auth profiles on the recording machine cannot leak
warnings into the demo output.
@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from d88245d to ff23844 Compare June 4, 2026 15:19
@stainless-app

stainless-app Bot commented Jun 4, 2026

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🧪 Testing

To try out this version of the SDK:

Download and unzip: 'https://pkg.stainless.com/s/anthropic-cli/8302a45f5d5a6df0289f9061e9cd6318d7530c63/dist.zip'. On macOS, run 'xattr -d com.apple.quarantine {executable name}'.

Expires at: Thu, 09 Jul 2026 16:40:41 GMT
Updated at: Tue, 09 Jun 2026 16:40:41 GMT

@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from ff23844 to b511e80 Compare June 5, 2026 19:05
@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from b511e80 to d63845e Compare June 5, 2026 21:15
stainless-app Bot added 2 commits June 6, 2026 17:01
- BetaManagedAgentsCustomToolInputSchema.type is now a required const
- agents/versions list responses now mark `data` required
- max_tokens on the advisor tool; model_not_found advisor error code
- error_message on tool-search result error params
…upport for server-side fallbacks on refusal

feat(client): adds client-side fallbacks middleware for API providers that do not support server-side fallbacks
@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from d63845e to 85d8c2a Compare June 9, 2026 16:32
@stainless-app stainless-app Bot changed the title release: 1.10.1 release: 1.11.0 Jun 9, 2026
@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 85d8c2a to 0e92936 Compare June 9, 2026 16:33
@stainless-app stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 0e92936 to cee82ed Compare June 9, 2026 16:49
@stainless-app stainless-app Bot merged commit f9eb559 into main Jun 9, 2026
6 checks passed
@stainless-app stainless-app Bot deleted the release-please--branches--main--changes--next branch June 9, 2026 16:55
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stainless-app Bot commented Jun 9, 2026

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4 participants