What's Changed

• Update README.md by @aashish13 in https://github.com/langchain4j/langchain4j/pull/281
• Cleanup Testcontainers deps by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/292
• Feature/elastic search restclient constructor by @aphethean1 in https://github.com/langchain4j/langchain4j/pull/291
• build most modules with jdk 8 by @langchain4j in https://github.com/langchain4j/langchain4j/pull/295
• Graal Integration for Local JS and Python Execution by @janglada in https://github.com/langchain4j/langchain4j/pull/263
• graal: cleanup by @langchain4j in https://github.com/langchain4j/langchain4j/pull/297
• Fix a token usage statistical issue in DefaultAiServices by @jiangsier-xyz in https://github.com/langchain4j/langchain4j/pull/280
• pass OpenSearchClient directly to OpenSearchEmbeddingStore by @sboeckelmann in https://github.com/langchain4j/langchain4j/pull/309
• #299 Add null check for ToolsParameters in tokenCountEstimation by @kumlien in https://github.com/langchain4j/langchain4j/pull/303
• Add note about Quarkus specific examples by @geoand in https://github.com/langchain4j/langchain4j/pull/329
• Fix PG Vector Index creation statement incorrect by @pascalconfluent in https://github.com/langchain4j/langchain4j/pull/302
• Use Testcontainers annotation by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/310
• Use ElasticsearchContainer in Elasticsearch IT by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/312
• Use Testcontainers in Chroma IT by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/313
• Enable Milvus IT by using Testcontainers by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/314
• Use Testcontainers in Ollama IT by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/315
• Enhanced QWen Model Features and Tokenizer Implementation by @jiangsier-xyz in https://github.com/langchain4j/langchain4j/pull/317
• Use Testcontainers to run LocalAI by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/331
• enable langchain4j-graal build in workflow by @shalk in https://github.com/langchain4j/langchain4j/pull/333
• Use Testcontainers for Weaviate IT by @eddumelendez in https://github.com/langchain4j/langchain4j/pull/332
• Migration of the AzureOpenAiChatModel to use the Azure OpenAI SDK by @jdubois in https://github.com/langchain4j/langchain4j/pull/328
• OpenAI: Support parallel tool calling by @langchain4j in https://github.com/langchain4j/langchain4j/pull/338
• spring-boot-starter add azure openai support by @QuantumBear in https://github.com/langchain4j/langchain4j/pull/339
• make OpenAI tokenizer more precise by @langchain4j in https://github.com/langchain4j/langchain4j/pull/346
• Support Java 21 by @jdubois in https://github.com/langchain4j/langchain4j/pull/336
• Bump org.json:json from 20230618 to 20231013 in /langchain4j-cassandra by @dependabot in https://github.com/langchain4j/langchain4j/pull/341
• Add Dev Container support by @jdubois in https://github.com/langchain4j/langchain4j/pull/337
• Correctly configure Maven wrapper by @jdubois in https://github.com/langchain4j/langchain4j/pull/348
• fix the thread safety issue in InMemoryEmbeddingStore. by @lexluo09 in https://github.com/langchain4j/langchain4j/pull/351
• Remove quarkus module by @geoand in https://github.com/langchain4j/langchain4j/pull/345
• Migrate to the new Azure OpenAI 1.0.0-beta.6 SDK by @jdubois in https://github.com/langchain4j/langchain4j/pull/356
• Update GitHub Actions versions by @jdubois in https://github.com/langchain4j/langchain4j/pull/357
• Extract document loaders and parsers into separate modules by @langchain4j in https://github.com/langchain4j/langchain4j/pull/354
• Allow for specifying the organization id in the configuration by @edeandrea in https://github.com/langchain4j/langchain4j/pull/364
• Fixes #241: Added support for Neo4j Vector Index by @vga91 in https://github.com/langchain4j/langchain4j/pull/282
• feat: add OllamaChatModel and its corresponding integration test by @fintanmm in https://github.com/langchain4j/langchain4j/pull/323
• OpenAI DALL·E support by @Heezer in https://github.com/langchain4j/langchain4j/pull/298
• bumped version to 0.25.0-SNAPSHOT by @langchain4j in https://github.com/langchain4j/langchain4j/pull/369
• Removed generic AiMessage ctor by @langchain4j in https://github.com/langchain4j/langchain4j/pull/370
• Fix Neo4jEmbeddingStoreTest error by @vga91 in https://github.com/langchain4j/langchain4j/pull/368
• Integration with ChatGLM by @Martin7-1 in https://github.com/langchain4j/langchain4j/pull/360
• Add image generation support with Azure OpenAI by @jdubois in https://github.com/langchain4j/langchain4j/pull/359
• #365: handle enum arguments in tools properly by @langchain4j in https://github.com/langchain4j/langchain4j/pull/367
• Add support for "stop" in Azure OpenAI by @jdubois in https://github.com/langchain4j/langchain4j/pull/372
• Azure OpenAI: add tests for GPT 4 by @jdubois in https://github.com/langchain4j/langchain4j/pull/371
• Extracted OpenAI Spring Boot starter into a separate module by @langchain4j in https://github.com/langchain4j/langchain4j/pull/361
• Update Ollama by @langchain4j in https://github.com/langchain4j/langchain4j/pull/373
• OpenAI: added missing parameters (logit_bias, response_format, seed, user) by @langchain4j in https://github.com/langchain4j/langchain4j/pull/374
• Support Google Vertex AI Gemini by @langchain4j in https://github.com/langchain4j/langchain4j/pull/402
• rename langchain4j-graal module by @langchain4j in https://github.com/langchain4j/langchain4j/pull/405
• Add support for the 3 authentication methods to Azure OpenAI by @jdubois in https://github.com/langchain4j/langchain4j/pull/375
• fix pinecone QueryRequest usage, upgrade from 0.2.1 to 0.6.0 by @shalk in https://github.com/langchain4j/langchain4j/pull/406
• fixed pinecone client CVEs by @langchain4j in https://github.com/langchain4j/langchain4j/pull/409
• Replace Mustache templates with simple implementation to reduce transitive dependencies by @langchain4j in https://github.com/langchain4j/langchain4j/pull/408
• 385 Metadata takes ownership of its construction Map<String, String> by @langchain4j in https://github.com/langchain4j/langchain4j/pull/412
• Metadata: deprecated potentially confusing add/from/metadata(String, Object) methods by @langchain4j in https://github.com/langchain4j/langchain4j/pull/413
• Fixed (#264) by @langchain4j in https://github.com/langchain4j/langchain4j/pull/414

New Contributors

• @aashish13 made their first contribution in https://github.com/langchain4j/langchain4j/pull/281
• @eddumelendez made their first contribution in https://github.com/langchain4j/langchain4j/pull/292
• @aphethean1 made their first contribution in https://github.com/langchain4j/langchain4j/pull/291
• @janglada made their first contribution in https://github.com/langchain4j/langchain4j/pull/263
• @sboeckelmann made their first contribution in https://github.com/langchain4j/langchain4j/pull/309
• @kumlien made their first contribution in https://github.com/langchain4j/langchain4j/pull/303
• @shalk made their first contribution in https://github.com/langchain4j/langchain4j/pull/333
• @jdubois made their first contribution in https://github.com/langchain4j/langchain4j/pull/328
• @QuantumBear made their first contribution in https://github.com/langchain4j/langchain4j/pull/339
• @dependabot made their first contribution in https://github.com/langchain4j/langchain4j/pull/341
• @lexluo09 made their first contribution in https://github.com/langchain4j/langchain4j/pull/351
• @edeandrea made their first contribution in https://github.com/langchain4j/langchain4j/pull/364
• @vga91 made their first contribution in https://github.com/langchain4j/langchain4j/pull/282
• @fintanmm made their first contribution in https://github.com/langchain4j/langchain4j/pull/323

Breaking Changes

• langchain4j-azure-open-ai module was completely reworked (using official Azure SDK now), there might be breaking changes when constructing models in the builders
• langchain4j-spring-boot-starter module is replaced by separate langchain4j-*-spring-boot-starter modules for each provider, e.g. langchain4j-open-ai-spring-boot-starter, all available starters are here
• Spring Boot properties changed: langchain4j.{model type}.{provider}.{property} -> langchain4j.{provider}.{model type}.{property}
• dev.langchain4j.data.document.FileSystemDocumentLoader -> dev.langchain4j.data.document.loader.FileSystemDocumentLoader
• Document parsers (PDF, MS Office) were extracted into their own modules, TextDocumentParser stays in langchain4j module
• Amazon S3 loaders migrated to langchain4j-document-loader-amazon-s3 module
• EmbeddingStoreIngestor moved into langchain4j-core, keeping the same package name
• potential problems: mustache templates were replaced with simple implementation, but should be backwards compatible unless you used advanced features. You can still plug in mustache using SPI.

Full Changelog: https://github.com/langchain4j/langchain4j/compare/0.24.0...0.25.0