What's Changed

• improve documentation on base chain by @hwchase17 in https://github.com/hwchase17/langchain/pull/6468
• Vector store support for Cassandra by @hemidactylus in https://github.com/hwchase17/langchain/pull/6426
• Update notebook for MD header splitter and create new cookbook by @rlancemartin in https://github.com/hwchase17/langchain/pull/6399
• docs/fix links by @dev2049 in https://github.com/hwchase17/langchain/pull/6498
• Fix link by @dev2049 in https://github.com/hwchase17/langchain/pull/6501
• Documentation Fix: Correct the example code output in the prompt templates doc by @harjotsinghparmar in https://github.com/hwchase17/langchain/pull/6496
• Fixed: 'readible' -> readable by @djm93dev in https://github.com/hwchase17/langchain/pull/6492
• Make streamlit import optional by @dev2049 in https://github.com/hwchase17/langchain/pull/6510
• Fix typo in docstring of format_tool_to_openai_function by @northern-64bit in https://github.com/hwchase17/langchain/pull/6479
• typo(llamacpp.ipynb): 'condiser' -> 'consider' by @TheOnlyWayUp in https://github.com/hwchase17/langchain/pull/6474
• Export trajectory eval fn by @vowelparrot in https://github.com/hwchase17/langchain/pull/6509
• Update index.mdx by @dataprofessor in https://github.com/hwchase17/langchain/pull/6326
• Add KuzuQAChain by @mewim in https://github.com/hwchase17/langchain/pull/6454
• Be able to use Codey models on Vertex AI by @HassanOuda in https://github.com/hwchase17/langchain/pull/6354
• Add async support for HuggingFaceTextGenInference by @mirceapasoi in https://github.com/hwchase17/langchain/pull/6507
• Feat: Add a prompt template parameter to qa with structure chains by @ElReyZero in https://github.com/hwchase17/langchain/pull/6495
• Integrate Rockset as Vectorstore by @anubhav94N in https://github.com/hwchase17/langchain/pull/6216
• Fix issue with non-list To header in GmailSendMessage Tool by @jmisilo in https://github.com/hwchase17/langchain/pull/6242
• Update model token mappings/cost to include 0613 models by @eoriont in https://github.com/hwchase17/langchain/pull/6122
• Infino integration for simplified logs, metrics & search across LLM data & token usage by @naman-modi in https://github.com/hwchase17/langchain/pull/6218
• Harrison/multi tool by @hwchase17 in https://github.com/hwchase17/langchain/pull/6518
• bump to ver 208 by @hwchase17 in https://github.com/hwchase17/langchain/pull/6540

New Contributors

• @hemidactylus made their first contribution in https://github.com/hwchase17/langchain/pull/6426
• @harjotsinghparmar made their first contribution in https://github.com/hwchase17/langchain/pull/6496
• @djm93dev made their first contribution in https://github.com/hwchase17/langchain/pull/6492
• @northern-64bit made their first contribution in https://github.com/hwchase17/langchain/pull/6479
• @TheOnlyWayUp made their first contribution in https://github.com/hwchase17/langchain/pull/6474
• @dataprofessor made their first contribution in https://github.com/hwchase17/langchain/pull/6326
• @mewim made their first contribution in https://github.com/hwchase17/langchain/pull/6454
• @mirceapasoi made their first contribution in https://github.com/hwchase17/langchain/pull/6507
• @ElReyZero made their first contribution in https://github.com/hwchase17/langchain/pull/6495
• @anubhav94N made their first contribution in https://github.com/hwchase17/langchain/pull/6216
• @jmisilo made their first contribution in https://github.com/hwchase17/langchain/pull/6242
• @eoriont made their first contribution in https://github.com/hwchase17/langchain/pull/6122
• @naman-modi made their first contribution in https://github.com/hwchase17/langchain/pull/6218

Full Changelog: https://github.com/hwchase17/langchain/compare/v0.0.207...v0.0.208