langchain-core
The foundational module of the LangChain framework, providing essential capabilities including the Runnable interface, message abstractions, and a callback system. It serves as the base dependency for the entire LangChain ecosystem, and nearly all higher-level components within the framework depend on it.
Core Facts
The upgrade can be completed via the command pip install -U langchain-core==1.6.6.
Patch-level updates generally do not introduce breaking changes and can typically be applied directly without modifying existing code.
langchain-core 1.6.6 is a patch-level update that introduces no breaking changes.
Timeline (last 90 days)
langchain-core==1.6.10 was released by the github-actions bot on October 12 at 14:14, with commit hash fddca06
This declaration of mid-conversation support involves three packages at the same time: core, anthropic and openai
langchain-core 1.6.10 contains two main changes: a routine release commit (PR #41220) and the feature declaring mid-conversation support (PR #41180)
The changes in PR #41180 involve three packages: core, anthropic and openai.
If only langchain-openai is upgraded without upgrading core in sync, the upper-layer logic reading profiles may not recognize the new fields, or the declaration may be ignored without error.
If a project has langchain-core, langchain-openai, langchain-anthropic and other packages installed at the same time, it is recommended to upgrade them all to mutually compatible versions to avoid inconsistency between capability declarations and actual implementations.
By moving SSRF validation down to the langchain-core layer, all upper-layer applications that depend on this core library can automatically receive protection without each needing to implement it independently.
The core change in langchain-core 1.6.8 compared to 1.6.7 is that SSRF checks for scoped and compatible IPv6 addresses were hardened via PR #41151.
The article recommends that developers using LangChain upgrade to 1.6.8 as soon as possible, reviewing the changelog and validating modules involving network requests and URL handling in a test environment before upgrading.
Implementing SSRF protection uniformly at the core layer embodies the Defense in Depth principle, offering better security coverage and consistency than a perimeter security mindset.
27 more timeline events
All Facts (20)
The upgrade can be completed via the command pip install -U langchain-core==1.6.6.
90%VerifiedPatch-level updates generally do not introduce breaking changes and can typically be applied directly without modifying existing code.
90%Verifiedlangchain-core 1.6.6 is a patch-level update that introduces no breaking changes.
80%VerifiedThe LangChain team released a langchain-core version 1.6.6 update.
80%Partially Verifiedlangchain-core 1.6.9 is a minor version iteration following 1.6.8.
75%Unverifiedlangchain-core is the foundational dependency of the entire LangChain framework, carrying key capabilities such as the Runnable interface, message abstraction, and the callback system.
70%UnverifiedLangChain's Claude integration is implemented through the langchain-anthropic sub-package, but the foundational abstractions for model compatibility are defined in langchain-core.
70%UnverifiedThis declaration of mid-conversation support involves three packages at the same time: core, anthropic and openai
50%Unverifiedlangchain-core==1.6.10 was released by the github-actions bot on October 12 at 14:14, with commit hash fddca06
50%UnverifiedIf a project has langchain-core, langchain-openai, langchain-anthropic and other packages installed at the same time, it is recommended to upgrade them all to mutually compatible versions to avoid inconsistency between capability declarations and actual implementations.
50%UnverifiedIf only langchain-openai is upgraded without upgrading core in sync, the upper-layer logic reading profiles may not recognize the new fields, or the declaration may be ignored without error.
50%UnverifiedThe changes in PR #41180 involve three packages: core, anthropic and openai.
50%UnverifiedImplementing SSRF protection uniformly at the core layer embodies the Defense in Depth principle, offering better security coverage and consistency than a perimeter security mindset.
50%UnverifiedThe article recommends that developers using LangChain upgrade to 1.6.8 as soon as possible, reviewing the changelog and validating modules involving network requests and URL handling in a test environment before upgrading.
50%UnverifiedThe core change in langchain-core 1.6.8 compared to 1.6.7 is that SSRF checks for scoped and compatible IPv6 addresses were hardened via PR #41151.
50%UnverifiedBy moving SSRF validation down to the langchain-core layer, all upper-layer applications that depend on this core library can automatically receive protection without each needing to implement it independently.
50%UnverifiedThe release process for version 1.6.9 corresponds to PR #41160.
50%UnverifiedThe core change in langchain-core 1.6.9 is that with_retry can now accept a callable as a parameter.
50%Unverified1.6.9 is a patch/minor-level feature enhancement update with low risk of backward compatibility issues.
50%UnverifiedPrior to 1.6.9, all retry decision conditions in with_retry had to be statically declared at call time, with no ability to make differentiated decisions at runtime based on specific error content or context.
50%