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langchain-core==1.2.27

LangChain Releases / 4/8/2026

📰 NewsDeveloper Stack & InfrastructureTools & Practical Usage

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Key Points

langchain-core version 1.2.27 was released as an incremental update over 1.2.26.
The update includes a core fix to properly handle symlinks in a deprecated prompt save path.
A maintenance change adds a clarifying comment about requiring pygments>=2.20.0.
The symlink-handling issue was reported by Jeff Ponte (JDP-Security), credited in the release notes.

Changes since langchain-core==1.2.26

release(core): 1.2.27 (#36586)
fix(core): handle symlinks in deprecated prompt save path (#36585)
chore: add comment explaining pygments>=2.20.0 (#36570)

Credit to Jeff Ponte (JP (@JDP-Security)) for reporting the symlink resolution issue in #36585.