2.52.0

New Features ✨

Other

• feat(integration): add gen_ai.conversation.id if available by @constantinius in #5307

Bug Fixes 🐛

Google Genai

• fix(google-genai): Token reporting by @alexander-alderman-webb in #5404
• fix(google-genai): deactivate google genai when langchain is used by @shellmayr in #5389

Mcp

• fix(mcp): Nest MCP spans under HTTP transactions by @alexander-alderman-webb in #5292
• fix(mcp): Handle all awaitable return types by @alexander-alderman-webb in #5415

Other

• fix(anthropic): Token reporting by @alexander-alderman-webb in #5403
• fix(arq): handle settings_cls passed as keyword argument by @nc9 in #5393
• fix(dramatiq): cleanup isolated scope and transaction when message is skipped by @frankie567 in #5346
• fix(openai): Token reporting by @alexander-alderman-webb in #5406
• fix(openai-agents): Inject propagation headers for HostedMCPTool when streaming by @alexander-alderman-webb in #5405
• fix: Fix list attribute type by @sentrivana in #5417
• fix: Adapt to new packaging in toxgen by @sentrivana in #5382

Internal Changes 🔧

Fastmcp

• test(fastmcp): Wrap prompt in Message by @alexander-alderman-webb in #5411
• test(fastmcp): Remove test_fastmcp_without_request_context() by @alexander-alderman-webb in #5412
• test(fastmcp): Use AsyncClient for SSE by @alexander-alderman-webb in #5400
• test(fastmcp): Use TestClient for Streamable HTTP by @alexander-alderman-webb in #5384
• test(fastmcp): Simulate stdio transport with memory streams by @alexander-alderman-webb in #5333

Mcp

• test(mcp): Use AsyncClient for SSE by @alexander-alderman-webb in #5396
• test(mcp): Use TestClient for Streamable HTTP by @alexander-alderman-webb in #5383
• test(mcp): Remove unused stdio helpers by @alexander-alderman-webb in #5409
• test(mcp): Simulate stdio transport with memory streams by @alexander-alderman-webb in #5329

Other

• ci: Fix lint step by @sentrivana in #5418
• ci: 🤖 Update test matrix with new releases (02/02) by @github-actions in #5413
• ci: Update tox and pin packaging version for tox by @alexander-alderman-webb in #5381
• ci: migration to the new codecov action by @MathurAditya724 in #5392

Other

• Revert "feat(ai): Add original input length meta attribute (#5375)" by @alexander-alderman-webb in #5419