Release@langchain/core@1.2.1220 September 2026
langchainjs
Preserves structured tool arguments directly in tracer run inputs.
Ensures downstream observers inspect exact payloads without serialisation loss.
- Licence
- MIT
- Platform
- Node.js, TypeScript
Build & Market Discovery
Structured Tracing and Stable Workflows
Agent runtimes solidify structured tracing boundaries.
- TOOLING
Release2.39.818 September 2026
n8n
Repairs data-encryption keys stored as raw instance keys and sweeps parked sub-execution parents.
Secures multi-tenant instance key handling and prevents dangling sub-workflow deadlocks.
- Licence
- NOASSERTION
- Platform
- Node.js, Docker, self-hosted
What this changes
Agent instrumentation requires precise payload visibility. These updates ensure that tracing systems retain structured tool inputs and workflow engines preserve encryption integrity under load; teams should evaluate it against their own stack, security controls and operating constraints before adoption.
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