✨ Features
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AIgateway declarative provider #12528
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Propagate W3C trace context from ACP prompts to MCP tool calls #12697
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Surface provider x-request-id on responses and errors #12587
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Honor supports_vision declared on custom provider models #12769
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Use live model metadata for OpenAI reasoning and prefer the Responses API #12568
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Cap auto-compaction at 225k tokens by default #12790
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Improve askai bot relevance #12728
🐛 Bug Fixes
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Adaptive thinking for Claude Sonnet and Haiku 5.5 #12761
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Reject malformed GOOSE_MODE across ACP providers #12846
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Bedrock: don't retry non-context ValidationException on converse_stream #12710
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OpenRouter: do not set transforms field unconditionally #11374
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Apply long-context price tiers to cost estimates #12787
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Finish pending tools before enforcing max turns #12702
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Not offer delegate to code-mode scripts #12711
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Anthropic: forward unknown request_params to wire, mirroring openai engine #12720
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Desktop: show copy button on messages with thinking blocks #12726
🔧 Improvements
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Bind subagents by their parent's hooks, mode and approvals #12802
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Lease a session's selection and start each extension on first use #12775
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Make Stop end the run promptly and save what it produced #12765
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Make tool operations own tool call checks #12865
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Not infer or steer while a tool approval is pending #12808
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Leave the login-shell PATH to whoever launches goose #12799
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Build turns from the session record: derive recipe prompt parts, persist prompt, goal and container #12730
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Add ProviderManager and route session providers through it #12745
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Use typed structs for openai message formatting #12725
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Remove background subagents and orchestrator; make Doctor session-only #12729
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Avoid duplicate provider initialization for foreground subagents #12705
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Refresh the model catalog on the blocking pool #12727
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Remove false optionality in desktop props #12776
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Delete the legacy agent loop #12760
📚 Documentation
- Agentic State Machines #12130