What's Changed
* fix(js): Add new tok event by hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/1512
* feat(js): Allow jestlike evaluators to return arrays of feedback, minor refactoring by jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1514
* fix(js): Fix evaluator config override by jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1515
* allow keyword args for evaluators by isahers1 in https://github.com/langchain-ai/langsmith-sdk/pull/1525
* bump version by isahers1 in https://github.com/langchain-ai/langsmith-sdk/pull/1528
**Full Changelog**: https://github.com/langchain-ai/langsmith-sdk/compare/v0.3.8...v0.3.9