v0.4.9

What's Changed

• feat(js): Update AI SDK tracing for v5 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1863
• feat: Configure by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/1859
• fix (js): include env var metadata in patch by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/1867
• release(js): 0.3.48 by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/1868
• feat(js): Respect LANGSMITH_OTEL_ENABLED env var, allow skipping global context manager setup, skip non-traceable spans by default by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1870
• feat(js): Adds dotted order to traced OTEL spans by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1876
• chore(python): deflake ci by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1872
• fix(js): Respect Anthropic 1h caching usage for AI SDK 5 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1879
• patch(python, js): Fix sampling logic for patch runs by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1881

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.8...v0.4.9