python-1.45.0
Semantic Kernel Python release 1.45.0 removes unsupported Copilot Studio agent service auth modes, standardizes MCP tool naming, and includes various validation and bug fixes.
Why this signal matters
Semantic Kernel has released version 1.45.0 for Python (alongside associated .NET updates in the shared repository). This release features a breaking change in Python that removes unsupported service authentication modes for the Copilot Studio agent. Key additions and fixes for Python include aligning MCP server tool names, pinning validated addresses for OpenAPI plugin requests, validating CrewAI task identifiers, encoding and validating session download filenames, clarifying HttpPlugin defaults, fixing a Postgres filter bug, and adding User-Agent headers to google-genai. Several dependency updates and test maintenance tasks were also performed across the codebase.
Actionable summary
Semantic Kernel Python 1.45.0 introduces a breaking change removing unsupported service auth mode from Copilot Studio agent. Key improvements include standardized MCP server tool names, validated addresses for OpenAPI requests, CrewAI task ID validation, and session file download encoding fixes.
- Agent usefulness
- 94/100
- Confidence
- 96%
- Canonical data
- JSON + Markdown
What builders should check
- Verify Copilot Studio agent integrations in Python to ensure configurations do not rely on the removed unsupported service auth mode.
- Inspect integrations relying on MCP tool discovery to account for standardized tool names.
- Review OpenAPI plugin usages to accommodate pinned validated address enforcement.
- Update Python dependencies to semantic-kernel version 1.45.0.