github anthropics/anthropic-sdk-go v1.76.0

3 hours ago

1.76.0 (2026-09-28)

Full Changelog: v1.75.0...v1.76.0

Features

  • api: add between_tools thinking type (bc5be8f)
  • api: add claude-sonnet-5-5 (48993ca)
  • api: add include_inherited and source to workspace rate limits (bd6bb6d)
  • api: add typed event type values to the Managed Agents events list filter (019b05b)
  • api: cache diagnostics GA — diagnostics on Message / MessageCreateParams (4ea973c)

Bug Fixes

  • client: pass HTTP client when cloning request config (cd8f34f)
  • client: retry when the connection drops part-way through a response (4f7f317)
  • client: send no placeholder filename for unnamed file uploads (968849c)
  • helpers: degrade between_tools thinking to disabled on fallback hops (#410) (aa15d36)

Performance Improvements

  • client: decode SSE streams without per-event allocations (0f84503)

Chores

  • ci: choose the CI runner by repository (acb082a)
  • docs: clarify that stream: true returns the raw event stream (5fafdf0)
  • docs: make Managed Agents actor descriptions resource-neutral (ae3cc2f)
  • docs: restore the research-preview notice on the Dream type (d95f40a)
  • internal: simplify request execution (4a68721)

Documentation

  • api: prefer each field's own description over its shared type's (d05f55e)

Don't miss a new anthropic-sdk-go release

NewReleases is sending notifications on new releases.