# Harness Python v1.12.0

Released 2025-10-10
Release: https://github.com/strands-agents/harness-sdk/releases/tag/python/v1.12.0 · Package: https://pypi.org/project/strands-agents/1.12.0/

## Features
- Refactor and update tool loading to support modules [tool] (https://github.com/strands-agents/sdk-python/pull/989)
- use tool for litellm structured\_output when supports\_response\_schema=false [model] (https://github.com/strands-agents/sdk-python/pull/957)

## Other
- Adding Development Tenets to CONTRIBUTING.md (https://github.com/strands-agents/sdk-python/pull/1009)
- Revert "feat: implement concurrent message reading for session managers (#897)" [sessions] (https://github.com/strands-agents/sdk-python/pull/1013)
- Add EmbeddedResource support to mcp (read GitHub file contents blocker) [mcp] (https://github.com/strands-agents/sdk-python/pull/726)
- conversation manager - summarization - noop tool [tool] (https://github.com/strands-agents/sdk-python/pull/1003)
- Fix additional\_args passing in SageMakerAIModel (https://github.com/strands-agents/sdk-python/pull/983)

## First-time contributors
- @KyMidd (#726)
- @athewsey (#983)