[BUG]: LangChain ESM support broken for `@langchain/core@>=1.0.0`

[sabrenner]

Tracer Version(s)

5.75.0

Node.js Version(s)

22.17.0

Bug Report

Leaving this as a community notice while I work out a solution, since I haven't seen a report yet. From our test version dependabot update, and running tests locally, it looks like the most recent major release of LangChain is not compatible with dd-trace (no errors produced, just missing spans as a result of incompatible instrumentation). A fix has been identified and we're working on implementing it. This should not affect CommonJS applications using LangChain

Reproduction Code

No response

Error Logs

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Tracer Config

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Operating System

No response

Bundling

Unsure