What's Changed
* langchain[patch]: Release 0.0.199 by jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3472
* chore: update contribution docs by chasemcdo in https://github.com/langchain-ai/langchainjs/pull/3481
* core[patch]: move more tests & test utils to core by bracesproul in https://github.com/langchain-ai/langchainjs/pull/3483
* core[patch]: Bump core by jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3486
* langchain[chore]: Remove duplicated code by bracesproul in https://github.com/langchain-ai/langchainjs/pull/3487
* langchain[patch]: Adds core tests to CI by jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3489
* langchain[patch]: Adds missing export by jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3490
* core[patch]: Catch tiktoken errors by jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3491
* langchain[patch]: onToken event added in ChatLlamaCpp call function by shareefmorayur in https://github.com/langchain-ai/langchainjs/pull/3443
* Fix build by jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3492
* core[minor]: Runnable with message history by bracesproul in https://github.com/langchain-ai/langchainjs/pull/3437
* langchain[patch]: feat(Gradient LLM Integration): Add fine-tuned adapter inference support by chasemcdo in https://github.com/langchain-ai/langchainjs/pull/3471
* langchain[minor]: feat(embedding integration): Gradient AI by chasemcdo in https://github.com/langchain-ai/langchainjs/pull/3475
* multi[patch]: Bump core deps by jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3495
* core[patch]: Fix token counting by jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3496
* langchain[patch]: Miscellaneous test fixes by jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3497
New Contributors
* shareefmorayur made their first contribution in https://github.com/langchain-ai/langchainjs/pull/3443
**Full Changelog**: https://github.com/langchain-ai/langchainjs/compare/0.0.199...0.0.200