Release v0.4.2 · langchain-ai/langsmith-sdk

What's Changed

Add agent instructions for Python SDK by @nfcampos in #1776
Fix some issues w running codex in this repo by @nfcampos in #1777
Fix race for cached client initialization by @nfcampos in #1778
Handle missing attachment files gracefully by @nfcampos in #1782
fix(js): Fix JSDom check for Node 22 by @jacoblee93 in #1784
Cache request settings for Client by @nfcampos in #1787
chore: auto-label issues with 'sdk' label by @madams0013 in #1791
Store only the first new_token event by @nfcampos in #1779
fix(js): Pass events through on run create by @jacoblee93 in #1794
fix(js): Avoid overwriting runtime if already set by @jacoblee93 in #1795
feat(js): Add replica support for JS by @jacoblee93 in #1796
release(js): 0.3.32 by @jacoblee93 in #1797
add util for getting project name from env var by @lc-arjun in #1801
patch[python]: Only set replica updates on patch by @angus-langchain in #1798
feat[python]: Trace to multiple projects with distributed tracing by @angus-langchain in #1804
feat[python]: Enable OpenTelemetry trace context propagation by @angus-langchain in #1805
chore(deps): bump protobuf from 5.29.4 to 5.29.5 in /python by @dependabot in #1807
feat(py): add evaluate(..., error_handling="ignore") by @baskaryan in #1774

Full Changelog: v0.4.1...v0.4.2