langgraph sdk==0.3.15 released

LangGraph SDK 0.3.15 adds metadata filtering to cron search/count, making it easier for agent builders to target and manage scheduled jobs by metadata, and it bumps core packages including `langchain-core` to 1.4.0, `langgraph` to 1.2.1, and promotes alpha packages to official versions. It also fixes a concrete SDK bug by percent-encoding caller-supplied identifiers in URL paths, which should prevent malformed requests and improve reliability when IDs contain special characters.

langgraph sdk==0.3.15 is available. Release notes →

LangGraph SDK 0.3.15 adds metadata filtering to cron search/count, making it easier for agent builders to target and manage scheduled jobs by metadata, and it bumps core packages including langchain-core to 1.4.0, langgraph to 1.2.1, and promotes alpha packages to official versions.
It also fixes a concrete SDK bug by percent-encoding caller-supplied identifiers in URL paths, which should prevent malformed requests and improve reliability when IDs contain special characters.

What changed. sdk==0.3.15 is the latest release.

Why it matters. Review the release notes for breaking changes before upgrading.

Builder takeaway. Pin your version or upgrade in a branch and run your eval suite before deploying.

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