2.59.0a1

New Features ✨

Langchain

• Record run_name as gen_ai.function_id on Invoke Agent Spans by @alexander-alderman-webb in #5926
• Record run_name in on_tool_start by @alexander-alderman-webb in #5925
• Record run_name in on_chat_model_start by @alexander-alderman-webb in #5924

Other

• (consts) Add updated span convention constants to SPANDATA by @ericapisani in #6093
• (fastapi) Support span streaming in active thread tracking by @ericapisani in #6118
• (httpx) Migrate to span first by @ericapisani in #6084
• (huggingface_hub) Migrate to span first by @ericapisani in #6124
• (mcp) Migrate to span first by @ericapisani in #6131
• Add db.driver.name spans to database integrations by @ericapisani in #6082

Bug Fixes 🐛

Httpx

• Consistently early-exit when adding request source by @alexander-alderman-webb in #6151
• Set code.namespace and code.function instead of code.function.name in span streaming by @alexander-alderman-webb in #6150

Langchain

• Record run_name as gen_ai.function_id for text completions by @alexander-alderman-webb in #6073
• Set agent name as gen_ai.agent.name for chat and tool spans by @alexander-alderman-webb in #5877

Other

• (asgi) Use inspect.iscoroutinefunction on Python 3.14+ by @alexander-alderman-webb in #6135
• (batcher) Reset lock and flusher in child after fork by @ericapisani in #6163
• (grpc) Add isolation_scope to async server interceptor by @robinvd in #5940
• (metrics,logs) Don't attach span_id if no active span by @sentrivana in #6162
• (monitor) Release Monitor._thread_lock after fork (#6148) by @vokracko in #6159
• (openai-agents) Resolve agent from bindings for openai-agents >= 0.14 by @ericapisani in #6102
• (quart) Use inspect.iscoroutinefunction when Quart does by @alexander-alderman-webb in #6133
• (security) Prevent GitHub script injection in update-tox workflow by @fix-it-felix-sentry in #6171
• (starlette/fastapi) Use inspect.iscoroutinefunction when Starlette does by @alexander-alderman-webb in #6134
• (tornado) Make sure context manager doesn't double yield by @sentrivana in #6152
• Introduce _get_current_streamed_span() to keep types backwards compatible by @alexander-alderman-webb in #6177

Internal Changes 🔧

Stdlib

• Pin timestamps in add_http_request_source() patch by @alexander-alderman-webb in #6160
• Stop mocking HTTPSConnection.send in trace header tests by @alexander-alderman-webb in #6156

Other

• (batcher) Only flush the bucket that triggered the flush event by @sentrivana in #6168
• (celery) Remove unused NoOpMgr from utils by @sentrivana in #6078
• (ci) Update outdated pinned action version comments by @JoshuaMoelans in #6088
• (fastmcp) Span streaming tests by @alexander-alderman-webb in #6167
• (graphql) Update document setting by @sentrivana in #6153
• (grpc) Mirror sync interceptor by @sentrivana in #6158
• (langchain) Separate test to remove conditional by @alexander-alderman-webb in #6076
• (openai) Revert input truncation by @alexander-alderman-webb in #6117
• (queues) Update integrations by @sentrivana in #6157
• (tests) Replace deprecated enable_tracingwith traces_sample_rate by @sentrivana in #6077
• (transport) Remove redundant checks for dsn by @psh9508 in #6104
• Rename file by @sentrivana in #6194
• 🤖 Update test matrix with new releases (05/04) by @github-actions in #6186
• Assert presence of profile chunks after shutdown by @alexander-alderman-webb in #6174
• 🤖 Update test matrix with new releases (04/29) by @github-actions in #6173
• Limit update-tox action to master branch by @alexander-alderman-webb in #6172
• Expand scrubbing by @sentrivana in #6161
• Remove Python 2 compat from qualname_from_function by @ericapisani in #6137
• Update test matrix with new releases (04/27) by @alexander-alderman-webb in #6146
• Raise shutdown timeout in aws lambda tests by @sentrivana in #6129
• Join thread in continuous profiler test by @alexander-alderman-webb in #6125
• 🤖 Update test matrix with new releases (04/20) by @github-actions in #6100

Other

• removed universal bdist_wheel option by @Muskaan436 in #6197
• Update CHANGELOG.md by @sentrivana in 689cb97e
• release: 2.59.0 by @sentrivana in 397dda91