fix(langchainjs): deprecate v0.1 support for security reasons

js/.changeset/cute-clouds-tell.md

@@ -0,0 +1,5 @@
+---
+"@arizeai/openinference-instrumentation-langchain": major
+---
+
+deprecate support for v0.1

js/packages/openinference-instrumentation-langchain/README.md

@@ -26,3 +26,7 @@ lcInstrumentation.manuallyInstrument(CallbackManagerModule);
 ```
 
 For more information on OpenTelemetry Node.js SDK, see the [OpenTelemetry Node.js SDK documentation](https://opentelemetry.io/docs/instrumentation/js/getting-started/nodejs/).
+
+## Deprecations
+
+LangChain v0.1 was deprecated on 2025-03-02 due to security vulerabilities in the core package.

js/packages/openinference-instrumentation-langchain/package.json

@@ -40,15 +40,13 @@
     "@opentelemetry/instrumentation": "^0.46.0"
   },
   "peerDependencies": {
-    "@langchain/core": "^0.1.0 || ^0.2.0 || ^0.3.0"
+    "@langchain/core": "^0.2.0 || ^0.3.0"
   },
   "devDependencies": {
     "@langchain/core": "^0.3.13",
     "@langchain/coreV0.2": "npm:@langchain/core@^0.2.0",
-    "@langchain/coreV0.1": "npm:@langchain/core@^0.1.0",
     "@langchain/openai": "^0.3.11",
     "@langchain/openaiV0.2": "npm:@langchain/openai@^0.2.0",
-    "@langchain/openaiV0.1": "npm:@langchain/openai@^0.1.0",
     "@opentelemetry/exporter-trace-otlp-proto": "^0.50.0",
     "@opentelemetry/resources": "^1.25.1",
     "@opentelemetry/sdk-trace-base": "^1.25.1",

js/packages/openinference-instrumentation-langchain/src/instrumentation.ts

@@ -1,5 +1,4 @@
 import type * as CallbackManagerModuleV02 from "@langchain/core/callbacks/manager";
-import type * as CallbackManagerModuleV01 from "@langchain/coreV0.1/callbacks/manager";
 import {
   InstrumentationBase,
   InstrumentationConfig,
@@ -27,9 +26,7 @@ export function isPatched() {
   return _isOpenInferencePatched;
 }
 
-type CallbackManagerModule =
-  | typeof CallbackManagerModuleV01
-  | typeof CallbackManagerModuleV02;
+type CallbackManagerModule = typeof CallbackManagerModuleV02;
 
 /**
  * An auto instrumentation class for LangChain that creates {@link https://github.com/Arize-ai/openinference/blob/main/spec/semantic_conventions.md|OpenInference} Compliant spans for LangChain
@@ -121,24 +118,6 @@ export class LangChainInstrumentation extends InstrumentationBase<CallbackManage
           );
           args[0] = newInheritableHandlers;
 
-          return original.apply(this, args);
-        };
-      });
-    } else {
-      this._wrap(module.CallbackManager, "configure", (original) => {
-        return function (
-          this: typeof CallbackManagerModuleV01,
-          ...args: Parameters<
-            (typeof CallbackManagerModuleV01.CallbackManager)["configure"]
-          >
-        ) {
-          const handlers = args[0];
-          const newHandlers = addTracerToHandlers(
-            instrumentation.oiTracer,
-            handlers,
-          );
-          args[0] = newHandlers;
-
           return original.apply(this, args);
         };
       });

js/packages/openinference-instrumentation-langchain/src/instrumentationUtils.ts

@@ -1,5 +1,4 @@
 import type * as CallbackManagerModuleV02 from "@langchain/core/callbacks/manager";
-import type * as CallbackManagerModuleV01 from "@langchain/coreV0.1/callbacks/manager";
 import { LangChainTracer } from "./tracer";
 import { OITracer } from "@arizeai/openinference-core";
 
@@ -10,25 +9,15 @@ import { OITracer } from "@arizeai/openinference-core";
  * @returns the callback handlers with the {@link LangChainTracer} added
  *
  * If the handlers are an array, we add the tracer to the array if it is not already present
- *
- * There are some slight differences in the CallbackHandler interface between V0.1 and v0.2
- * So we have to cast our tracer to any to avoid type errors
- * We support both versions and our tracer is compatible with either as it will extend the BaseTracer from the installed version which will be the same as the version of handlers passed in here
  */
-export function addTracerToHandlers(
-  tracer: OITracer,
-  handlers?: CallbackManagerModuleV01.Callbacks,
-): CallbackManagerModuleV01.Callbacks;
 export function addTracerToHandlers(
   tracer: OITracer,
   handlers?: CallbackManagerModuleV02.Callbacks,
 ): CallbackManagerModuleV02.Callbacks;
 export function addTracerToHandlers(
   tracer: OITracer,
-  handlers?:
-    | CallbackManagerModuleV01.Callbacks
-    | CallbackManagerModuleV02.Callbacks,
-): CallbackManagerModuleV01.Callbacks | CallbackManagerModuleV02.Callbacks {
+  handlers?: CallbackManagerModuleV02.Callbacks,
+): CallbackManagerModuleV02.Callbacks {
   if (handlers == null) {
     return [new LangChainTracer(tracer)];
   }