Highlights

• Easy RAG by @langchain4j in https://github.com/langchain4j/langchain4j/pull/686
• Advanced RAG with Azure AI Search by @jdubois in https://github.com/langchain4j/langchain4j/pull/587
• Declarative AI Services for Spring Boot by @langchain4j in https://github.com/langchain4j/langchain4j-spring/pull/12
• Tool/function support for Mistral AI by @czelabueno in https://github.com/langchain4j/langchain4j/pull/767
• New embedding store integration: Azure Cosmos DB for MongoDB by @aayush3011 in https://github.com/langchain4j/langchain4j/pull/691
• Advanced RAG with Neo4j knowledge graphs by @theawesomenayak in https://github.com/langchain4j/langchain4j/pull/741
• Anthropic: added support for streaming, native images and Spring Boot starter by @langchain4j in https://github.com/langchain4j/langchain4j/pull/750 and https://github.com/langchain4j/langchain4j-spring/pull/11
• New in-process embedding model: BAAI/bge-small-en-v1.5 by @langchain4j in https://github.com/langchain4j/langchain4j-embeddings/pull/17

Other Changes

• Configure the OpenAI user-agent for LangChain4J by @jdubois in https://github.com/langchain4j/langchain4j/pull/733

• Introduce SPI for creating Mistral AI Client by @geoand in https://github.com/langchain4j/langchain4j/pull/744

• OpenAI: OpenAiTokenizer now has a default constructor which should be suitable for all current models by @langchain4j in https://github.com/langchain4j/langchain4j/pull/745

• Use Testcontainers Ollama module by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/702

• Update usage of PostgreSQLContainer with pgvector/pgvector image by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/703

• Create MongoDBAtlasContainer by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/713

• Add Inifinispan dependencies to the BOM by @agoncal in https://github.com/langchain4j/langchain4j/pull/769

• Bumps com.azure:azure-identity from 1.11.3 to 1.11.4. by @jdubois in https://github.com/langchain4j/langchain4j/pull/762

• Updates to Infinispan 15.0 final by @karesti in https://github.com/langchain4j/langchain4j/pull/753

• Adds other embeddings dependencies to BOM by @agoncal in https://github.com/langchain4j/langchain4j/pull/779

• Bump follow-redirects from 1.15.4 to 1.15.6 in /docs by @dependabot in https://github.com/langchain4j/langchain4j/pull/771

• [DOCS] Update overview integration table with new integrations by @czelabueno in https://github.com/langchain4j/langchain4j/pull/766

• updated openai4j version by @langchain4j in https://github.com/langchain4j/langchain4j/pull/780

• Fix #748: qianfan model throw exception the length of messages must b… by @yangxb2010000 in https://github.com/langchain4j/langchain4j/pull/749

• Azure AI Search: dimension shouldn't be mandatory for full text search by @jdubois in https://github.com/langchain4j/langchain4j/pull/796

• Add support for Responsible AI by @jdubois in https://github.com/langchain4j/langchain4j/pull/764

• DefaultRetrievalAugmentor: improve logging by @langchain4j in https://github.com/langchain4j/langchain4j/pull/798

• Fix #770: do not invoke scoring model when there is no content ro rerank by @langchain4j in https://github.com/langchain4j/langchain4j/pull/797

• Fix #756: Allow blank content in AiMessage, propagate failures into streaming handler (Ollama) by @langchain4j in https://github.com/langchain4j/langchain4j/pull/782

• adds PGVector Store example by @rajadilipkolli in https://github.com/langchain4j/langchain4j/pull/792

• [DOCS] MistralAI function calling docs by @czelabueno in https://github.com/langchain4j/langchain4j/pull/765

• Bump com.azure:azure-storage-common from 12.24.2 to 12.24.3 by @jdubois in https://github.com/langchain4j/langchain4j/pull/809

• Bump com.azure:azure-search-documents from 11.6.2 to 11.6.3. by @jdubois in https://github.com/langchain4j/langchain4j/pull/810

• Bump webpack-dev-middleware from 5.3.3 to 5.3.4 in /docs by @dependabot in https://github.com/langchain4j/langchain4j/pull/807

• Fix #757: Gemini: allow SystemMessage(s), merge them into the first UserMessage, warn in logs by @langchain4j in https://github.com/langchain4j/langchain4j/pull/812

• [FEATURE] #734 Add missing foundational Bedrock models by @bottlerocketjonny in https://github.com/langchain4j/langchain4j/pull/773

• Add streaming API for Bedrock Anthropics by @michalkozminski in https://github.com/langchain4j/langchain4j/pull/679

• Support relative paths without parent directory by @InAnYan in https://github.com/langchain4j/langchain4j/pull/817

• Allow using AI Service with tools without memory by @langchain4j in https://github.com/langchain4j/langchain4j/pull/819

• Add a variable to optionally update the index in AzureAISearchContentRetriver by @jdubois in https://github.com/langchain4j/langchain4j/pull/822

• Bump com.azure:azure-storage-blob from 12.25.2 to 12.25.3 by @jdubois in https://github.com/langchain4j/langchain4j/pull/811

• Release 0.29.0 by @langchain4j in https://github.com/langchain4j/langchain4j/pull/830

New Contributors

• @yangxb2010000 made their first contribution in https://github.com/langchain4j/langchain4j/pull/749
• @rajadilipkolli made their first contribution in https://github.com/langchain4j/langchain4j/pull/792
• @aayush3011 made their first contribution in https://github.com/langchain4j/langchain4j/pull/691
• @bottlerocketjonny made their first contribution in https://github.com/langchain4j/langchain4j/pull/773
• @michalkozminski made their first contribution in https://github.com/langchain4j/langchain4j/pull/679
• @InAnYan made their first contribution in https://github.com/langchain4j/langchain4j/pull/817

Full Changelog: https://github.com/langchain4j/langchain4j/compare/0.28.0...0.29.0