{"id":"org_eF2ktqNMwh2TZLCRUI5KL","slug":"langchain","name":"LangChain","domain":"langchain.com","description":null,"category":"ai","tags":["agents","llm","orchestration","rag"],"sourceCount":6,"releaseCount":529,"releasesLast30Days":131,"avgReleasesPerWeek":22.2,"lastFetchedAt":"2026-04-19T03:01:56.694Z","trackingSince":"2023-10-02T14:16:44.000Z","aliases":[],"accounts":[{"platform":"github","handle":"langchain-ai"}],"products":[{"id":"prod_G_zB_HQIP9rgVcCi71DZj","slug":"langgraph","name":"LangGraph","url":"https://github.com/langchain-ai/langgraph","description":"Graph-based agent orchestration framework for building stateful, multi-step LLM applications.","sourceCount":1},{"id":"prod_dkSctnCffHsmQkwxzm9Yo","slug":"langsmith","name":"LangSmith","url":null,"description":null,"sourceCount":2}],"sources":[{"id":"src_DHFVWRXVg-SeL071Rk868","slug":"langchain-python","name":"LangChain (Python)","type":"github","url":"https://github.com/langchain-ai/langchain","isPrimary":false,"isHidden":false,"fetchPriority":"normal","releaseCount":116,"latestVersion":"langchain-core==1.3.0","latestDate":"2026-04-17T14:51:57.000Z","latestAddedAt":"2026-04-17T15:02:44.392Z","productSlug":null,"productName":null},{"id":"src_rnugnI9-xjSd3KVm2Kwjq","slug":"langchain-changelog","name":"LangChain Changelog","type":"scrape","url":"https://changelog.langchain.com","isPrimary":false,"isHidden":false,"fetchPriority":"normal","releaseCount":10,"latestVersion":"v0.4","latestDate":"2026-03-19T00:00:00.000Z","latestAddedAt":"2026-04-16T13:21:23.221Z","productSlug":"langsmith","productName":"LangSmith"},{"id":"src_ALSvIwlT7h85Y_2L3NF30","slug":"langchain-js","name":"LangChain.js","type":"github","url":"https://github.com/langchain-ai/langchainjs","isPrimary":false,"isHidden":false,"fetchPriority":"normal","releaseCount":121,"latestVersion":"@langchain/google-gauth@2.1.27","latestDate":"2026-04-15T00:22:35.000Z","latestAddedAt":"2026-04-15T03:02:16.230Z","productSlug":null,"productName":null},{"id":"src_G6Ml98HAwPncNKVk_1nrl","slug":"langgraph","name":"LangGraph","type":"github","url":"https://github.com/langchain-ai/langgraph","isPrimary":false,"isHidden":false,"fetchPriority":"normal","releaseCount":111,"latestVersion":"1.1.8","latestDate":"2026-04-17T19:46:03.000Z","latestAddedAt":"2026-04-17T20:04:47.373Z","productSlug":"langgraph","productName":"LangGraph"},{"id":"src_VhWYXjxOwpePHls2PdwcV","slug":"langserve","name":"LangServe","type":"github","url":"https://github.com/langchain-ai/langserve","isPrimary":false,"isHidden":false,"fetchPriority":"normal","releaseCount":65,"latestVersion":"v0.3.3","latestDate":"2025-10-17T15:08:23.000Z","latestAddedAt":"2026-04-07T18:01:27.375Z","productSlug":null,"productName":null},{"id":"src_CE4eBm3laQ2I1-roFfjy2","slug":"langsmith-sdk","name":"LangSmith SDK","type":"github","url":"https://github.com/langchain-ai/langsmith-sdk","isPrimary":false,"isHidden":false,"fetchPriority":"normal","releaseCount":106,"latestVersion":"v0.7.32","latestDate":"2026-04-15T23:42:29.000Z","latestAddedAt":"2026-04-16T02:02:36.458Z","productSlug":"langsmith","productName":"LangSmith"}],"overview":null,"knowledgePage":null,"playbook":{"scope":"playbook","content":"# LangChain — Playbook\n\n> Agent reference for fetching and maintaining **LangChain** (`langchain`) changelog sources.\n\n**6** active sources · **2** products: LangSmith, LangGraph · domain: langchain.com\n\n## Sources\n\n| Name | ID | Type | URL | Product | Last Fetched |\n|------|-----|------|-----|---------|--------------|\n| LangChain (Python) | `src_DHFVWRXVg-SeL071Rk868` | github | https://github.com/langchain-ai/langchain | — | Apr 18 |\n| LangGraph | `src_G6Ml98HAwPncNKVk_1nrl` | github | https://github.com/langchain-ai/langgraph | LangGraph | Apr 18 |\n| LangChain.js | `src_ALSvIwlT7h85Y_2L3NF30` | github | https://github.com/langchain-ai/langchainjs | — | Apr 18 |\n| LangServe | `src_VhWYXjxOwpePHls2PdwcV` | github | https://github.com/langchain-ai/langserve | — | Apr 18 |\n| LangSmith SDK | `src_CE4eBm3laQ2I1-roFfjy2` | github | https://github.com/langchain-ai/langsmith-sdk | LangSmith | Apr 18 |\n| LangChain Changelog | `src_rnugnI9-xjSd3KVm2Kwjq` | scrape | https://changelog.langchain.com | LangSmith | Apr 16 |\n\n## Agent Notes\n\n### Extraction patterns\n- **langchain-python**: Monorepo with multiple sub-packages (langchain-core, langchain-community, langchain-openai, etc.). GitHub releases are tagged per sub-package (e.g., `langchain-core==0.2.x`). Extract the sub-package name from the tag to attribute releases correctly. Releases without a sub-package prefix are for the main `langchain` package.\n- **langchain-changelog**: The canonical platform changelog at changelog.langchain.com. RSS feed provides structured entries covering LangSmith, LangGraph Cloud, and platform-wide announcements. These are product/platform releases, not library versions.\n- **langchain-js**: Single-package repo. Tags follow standard semver (`v0.x.x`). Straightforward extraction.\n- **langgraph**: Releases cover the LangGraph framework. Tags may include language prefixes (e.g., `langgraphjs@` for JS, plain version tags for Python). Filter to Python-only tags unless JS coverage is desired.\n- **langserve**: Low release velocity. Standard GitHub release tags.\n- **langsmith-sdk**: Multi-language SDK repo (Python and JS). Tags are prefixed by language (`python/v0.x.x`, `js/v0.x.x`). Extract both or filter to relevant language.\n\n### Known quirks\n- The langchain-python monorepo generates a high volume of releases due to sub-package independence — a single development cycle may produce 5-10 tagged releases across sub-packages. Consider filtering to core packages (langchain, langchain-core, langchain-community) to avoid noise.\n- langsmith-sdk uses directory-based language prefixes in tags rather than the more common `@package/version` convention.\n- The changelog feed (langchain-changelog) covers LangSmith and LangGraph Cloud features that may not correspond to any GitHub release — it is the only source for platform/hosted service updates.\n- LangServe has slowed development as LangGraph has become the preferred deployment pattern.\n\n### Source coverage\n- **LangGraph product**: Covered by the `langgraph` GitHub source. LangGraph Cloud/Platform updates come through `langchain-changelog` feed.\n- **LangSmith product**: Covered by `langsmith-sdk` for the SDK and `langchain-changelog` for platform features. There is no dedicated LangSmith platform repo — the feed is essential for LangSmith product coverage.\n- **Core LangChain**: Covered by `langchain-python` (Python) and `langchain-js` (JavaScript). The Python monorepo is the primary source of activity.\n- **Gap**: LangGraph JS (`@langchain/langgraph`) releases live in the langchain-js repo, not the langgraph repo. Cross-check if LangGraph JS coverage is needed.\n","updatedAt":"2026-04-18T20:42:36.714Z"}}