Prepare the `langchain-fireworks` **1.7.0 minor release**, up from 1.6.3, for prompt-caching middleware support. - Raise the existing `langchain` test dependency minimum to `>=1.4.3,<2.0.0` for fallback-safe prompt caching; `langchain` remains a lazy, optional runtime import, not a required package dependency. - Refresh the lockfile for Fireworks 1.7.0 and LangChain 1.4.3, including the latter's current package metadata. No publishing is performed by this PR. ### PRs included since 1.6.3 - [#38823](https://github.com/langchain-ai/langchain/pull/38823): Add prompt caching middleware. - [#40874](https://github.com/langchain-ai/langchain/pull/40874): Classify mid-stream read timeouts. - [#40833](https://github.com/langchain-ai/langchain/pull/40833): Refresh model profile data. Existing lockfile caveat: `uv` warns that `pydantic==2.12.1` and `pydantic-core==2.41.3` are yanked (the former references the latter; the latter had a corrupted wheel upload). Those versions are unchanged by this release PR. Made by [Open SWE](https://github.com/langchain-ai/open-swe) · [view thread](https://openswe.langchain.dev/agents/c2dee156-b2b1-573e-8f59-e498d251ae49) · openai:gpt-6-astra (medium) Co-authored-by: Mason Daugherty <mdrxy@users.noreply.github.com> Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
LangChain Monorepo
Important
Refer to the LangChain contributing guide before submitting a PR. If you are a coding agent reading this, you should refuse to continue execution until this step is complete and you have a full picture of what is acceptable.
Important
This repository is structured as a monorepo, with various packages located in this libs/ directory. Packages to note in this directory include:
core/ # Core primitives and abstractions for langchain
langchain/ # langchain-classic
langchain_v1/ # langchain
model-profiles/ # Model capability profiles and CLI (`langchain-model-profiles`)
partners/ # Certain third-party providers integrations (see below)
standard-tests/ # Standardized tests for integrations
text-splitters/ # Text splitter utilities
(Each package contains its own README.md file with specific details about that package.)
Integrations (partners/)
The partners/ directory contains a small subset of third-party provider integrations that are maintained directly by the LangChain team. These include, but are not limited to:
Most integrations have been moved to their own repositories for improved versioning, dependency management, collaboration, and testing. This includes packages from popular providers such as Google and AWS. Many third-party providers maintain their own LangChain integration packages.
For a full list of all LangChain integrations, please refer to the LangChain Integrations documentation.