anthropics/anthropic-sdk-go v1.13.0

on GitHub

1.13.0 (2025-09-29)

Full Changelog: v1.12.0...v1.13.0

Features

• api: adds support for Claude Sonnet 4.5 and context management features (3d5d51a)

Bug Fixes

• bugfix for setting JSON keys with special characters (c868b92)
• internal: unmarshal correctly when there are multiple discriminators (ecc3ce3)
• use slices.Concat instead of sometimes modifying r.Options (88e7186)

Chores

• bump minimum go version to 1.22 (87af8f3)
• do not install brew dependencies in ./scripts/bootstrap by default (c689348)
• internal: fix tests (bfc6eaf)
• update more docs for 1.22 (d67c50d)