What's Changed

• Fix conditional that erroneously always runs. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9543
• Add SECURITY.md file to the repo. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9551
• fix: Updated marqo integration for marqo version 1.0.0+ by @RaynorChavez in https://github.com/langchain-ai/langchain/pull/9521
• Require manually triggering release workflows. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9552
• Use PyPI Trusted Publishing to publish langchain packages. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9467
• Update SECURITY.md email address. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9558
• pin pydantic api ref build by @baskaryan in https://github.com/langchain-ai/langchain/pull/9556
• Add py.typed file to langchain-experimental. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9557
• Bagatur/doc loader confluence by @baskaryan in https://github.com/langchain-ai/langchain/pull/9524
• Reminder to not report security issues as "bug" type issues. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9554
• add Epsilla vectorstore by @ricki-epsilla in https://github.com/langchain-ai/langchain/pull/9239
• Improvements to the Clarifai integration by @zeiler in https://github.com/langchain-ai/langchain/pull/9290
• Update ChatOpenAI._astream to respect finish_reason by @caffeinism in https://github.com/langchain-ai/langchain/pull/9431
• update data connection -> retrieval by @baskaryan in https://github.com/langchain-ai/langchain/pull/9561
• Add session to ConfluenceLoader.init() by @mssalvatore in https://github.com/langchain-ai/langchain/pull/9437
• fix: Imports for the ConfluenceLoader:process_page by @SathinduGA in https://github.com/langchain-ai/langchain/pull/9432
• docs: Add memgraph notebook by @AlexIchenskiy in https://github.com/langchain-ai/langchain/pull/9448
• Use the GitHub-suggested safer pattern for shell interpolation. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9567
• feat: Add PromptGuard integration by @zizhong in https://github.com/langchain-ai/langchain/pull/9481
• Add missing param to parent document retriever notebook by @jacoblee93 in https://github.com/langchain-ai/langchain/pull/9569
• Bagatur/confluence val by @baskaryan in https://github.com/langchain-ai/langchain/pull/9568
• Fix typo by @jeremysuriel in https://github.com/langchain-ai/langchain/pull/9565
• Replacing Exception type from ValueError to ImportError by @AashishSainiShorthillsAI in https://github.com/langchain-ai/langchain/pull/9588
• Add to support polars by @toddkim95 in https://github.com/langchain-ai/langchain/pull/9610
• Fix ChatMessageHistory by @pprados in https://github.com/langchain-ai/langchain/pull/9594
• Document AzureML Deployment Example by @varndorfer in https://github.com/langchain-ai/langchain/pull/9571
• bugfix: ArangoDB Empty Schema Case by @aMahanna in https://github.com/langchain-ai/langchain/pull/9574
• add variables for field names by @hwchase17 in https://github.com/langchain-ai/langchain/pull/9563
• Bagatur/litellm model name by @baskaryan in https://github.com/langchain-ai/langchain/pull/9613
• Add AINetwork blockchain toolkit integration by @klae01 in https://github.com/langchain-ai/langchain/pull/9527
• bump 271 by @baskaryan in https://github.com/langchain-ai/langchain/pull/9615
• Eliminate special-casing from test CI workflows. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9562
• Explicitly add the contents: write permission for publishing releases. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9617

New Contributors

• @RaynorChavez made their first contribution in https://github.com/langchain-ai/langchain/pull/9521
• @ricki-epsilla made their first contribution in https://github.com/langchain-ai/langchain/pull/9239
• @zeiler made their first contribution in https://github.com/langchain-ai/langchain/pull/9290
• @SathinduGA made their first contribution in https://github.com/langchain-ai/langchain/pull/9432
• @AlexIchenskiy made their first contribution in https://github.com/langchain-ai/langchain/pull/9448
• @jeremysuriel made their first contribution in https://github.com/langchain-ai/langchain/pull/9565
• @toddkim95 made their first contribution in https://github.com/langchain-ai/langchain/pull/9610
• @pprados made their first contribution in https://github.com/langchain-ai/langchain/pull/9594
• @varndorfer made their first contribution in https://github.com/langchain-ai/langchain/pull/9571
• @klae01 made their first contribution in https://github.com/langchain-ai/langchain/pull/9527

Full Changelog: https://github.com/langchain-ai/langchain/compare/v0.0.270...v0.0.271