LangChain for Java Files

Notable Changes

• Decision Models:
• Add OpenAI Decisions API support: OpenAiDecisionModel and OpenAiOfficialDecisionModel by @dliubarskyi in https://github.com/langchain4j/langchain4j/pull/6611

• Decision Services: images as parameters, and @Description of Scale levels as level descriptions by @dliubarskyi in https://github.com/langchain4j/langchain4j/pull/6613

• Batch Models:

• Add BedrockBatchChatModel for AWS Bedrock batch inference by @subhashpolisetti in https://github.com/langchain4j/langchain4j/pull/5797

• Caching

• feat(anthropic): support automatic prompt caching and cache TTL by @dliubarskyi in https://github.com/langchain4j/langchain4j/pull/6598

Other Changes

• chore(deps): bump brace-expansion from 1.1.18 to 1.1.21 in /docs by @dependabot[bot] in https://github.com/langchain4j/langchain4j/pull/6559
• chore(deps): bump dompurify from 3.4.13 to 3.4.16 in /docs by @dependabot[bot] in https://github.com/langchain4j/langchain4j/pull/6558
• chore(deps): bump fast-uri from 3.1.7 to 3.1.8 in /docs by @dependabot[bot] in https://github.com/langchain4j/langchain4j/pull/6547
• Only warn about ambiguous SPI implementations where one is picked by @dliubarskyi in https://github.com/langchain4j/langchain4j/pull/6588
• docs: fix malformed Markdown links in Hibernate embedding store docs by @zh-hanlabs in https://github.com/langchain4j/langchain4j/pull/6523
• docs: remove dead link to non-existent batch-processing tutorial by @zh-hanlabs in https://github.com/langchain4j/langchain4j/pull/6524
• site: add missing language tags to code blocks in docs/README.md by @zh-hanlabs in https://github.com/langchain4j/langchain4j/pull/6577
• docs: fix source links and outcome anchors in guardrails tutorial by @pei711 in https://github.com/langchain4j/langchain4j/pull/6579
• chore(deps): bump http-proxy-middleware from 2.0.9 to 2.0.10 in /docs by @dependabot[bot] in https://github.com/langchain4j/langchain4j/pull/6506
• fix: make Google Custom Search country restrict locale-independent by @ShubhJ46 in https://github.com/langchain4j/langchain4j/pull/6437
• fix(google-custom-web-search): make geoLocation casing locale-independent by @jiboo2022 in https://github.com/langchain4j/langchain4j/pull/6443
• fix(pgvector, mariadb): make metadata column type parsing locale-independent by @jiboo2022 in https://github.com/langchain4j/langchain4j/pull/6444
• fix(ai-services): avoid duplicating @UserMessage TextContent arguments by @chengwudi1 in https://github.com/langchain4j/langchain4j/pull/6587
• feat(micrometer-metrics): add EmbeddingModel metrics listener by @Snow7-G in https://github.com/langchain4j/langchain4j/pull/6586
• chore(deps): bump @babel/core from 7.26.0 to 7.29.7 in /docs by @dependabot[bot] in https://github.com/langchain4j/langchain4j/pull/6507
• chore(deps): update dependency org.codehaus.mojo:exec-maven-plugin to v3.6.4 by @renovate[bot] in https://github.com/langchain4j/langchain4j/pull/6438
• chore(deps): bump image-size from 2.0.2 to 2.0.4 in /docs by @dependabot[bot] in https://github.com/langchain4j/langchain4j/pull/6502
• fix(mcp): apply returnToolResultAttributes to async tool execution by @uhhgxg in https://github.com/langchain4j/langchain4j/pull/6581
• fix(mcp): propagate async tool cancellation by @mumuzi6 in https://github.com/langchain4j/langchain4j/pull/6584
• fix: apply cache_control to only the last system message (#6051) by @HiwarkhedePrasad in https://github.com/langchain4j/langchain4j/pull/6070
• chore(deps): bump source-map-js from 1.2.1 to 1.2.2 in /docs by @dependabot[bot] in https://github.com/langchain4j/langchain4j/pull/6594
• chore(deps): bump joi from 17.13.7 to 17.13.8 in /docs by @dependabot[bot] in https://github.com/langchain4j/langchain4j/pull/6596
• chore(deps): bump compression from 1.8.1 to 1.8.2 in /docs by @dependabot[bot] in https://github.com/langchain4j/langchain4j/pull/6597
• chore(deps): bump org.jsoup:jsoup from 1.23.1 to 1.23.2 in /langchain4j-parent by @dependabot[bot] in https://github.com/langchain4j/langchain4j/pull/6595
• fix(anthropic): apply cache_control to only the last tool when ToolSpecifications are equal by @vinod-iyer in https://github.com/langchain4j/langchain4j/pull/6515
• MCP: support configuring the stdio server working directory by @CCCLL in https://github.com/langchain4j/langchain4j/pull/6487
• Decide in one place which AI Service methods call the model by @dliubarskyi in https://github.com/langchain4j/langchain4j/pull/6610
• CI: run the license compliance check with the Maven wrapper by @dliubarskyi in https://github.com/langchain4j/langchain4j/pull/6612

New Contributors

• @zh-hanlabs made their first contribution in https://github.com/langchain4j/langchain4j/pull/6523
• @pei711 made their first contribution in https://github.com/langchain4j/langchain4j/pull/6579
• @chengwudi1 made their first contribution in https://github.com/langchain4j/langchain4j/pull/6587
• @mumuzi6 made their first contribution in https://github.com/langchain4j/langchain4j/pull/6584
• @HiwarkhedePrasad made their first contribution in https://github.com/langchain4j/langchain4j/pull/6070
• @vinod-iyer made their first contribution in https://github.com/langchain4j/langchain4j/pull/6515
• @CCCLL made their first contribution in https://github.com/langchain4j/langchain4j/pull/6487

Full Changelog: https://github.com/langchain4j/langchain4j/compare/1.21.0...1.22.0