@sentry/node-core

Important Changes

• browser: Add View Hierarchy integration

  A new viewHierarchyIntegration captures the DOM structure when an error occurs, providing a snapshot of the page state for debugging. Enable it in your Sentry configuration:

  import * as Sentry from '@sentry/browser';
  
  Sentry.init({
    dsn: '__DSN__',
    integrations: [Sentry.viewHierarchyIntegration()],
  });

• cloudflare: Split alarms into multiple traces and link them

  Durable Object alarms now create separate traces for each alarm invocation, with proper linking between related alarms for better observability.

• cloudflare: Enable RPC trace propagation with enableRpcTracePropagation (#19991, #20345)

  A new enableRpcTracePropagation option enables automatic trace propagation for Cloudflare RPC calls via .fetch(), ensuring distributed traces flow correctly across service bindings.

• core: Add enableTruncation option to AI integrations (#20167, #20181, #20182, #20183, #20184)

  All AI integrations (OpenAI, Anthropic, Google GenAI, LangChain, LangGraph) now support an enableTruncation option to control whether large AI inputs/outputs are truncated.

• opentelemetry: Vendor AsyncLocalStorageContextManager

  The OpenTelemetry context manager is now vendored internally, reducing external dependencies and ensuring consistent behavior across environments.

Other Changes

• core: Export a reusable function to add tracing headers

• core: Expose rewriteSources top level option

• node-native: Add support for V8 v14 (Node v25+)

• node: Include global scope for eventLoopBlockIntegration

• core, node: Support loading Express options lazily

• core: Set conversation_id only on gen_ai spans

• core: Use ai.operationId for Vercel AI V6 operation name mapping

• deno: Avoid inferring invalid span op from Deno tracer

• deno: Handle reader.closed rejection from releaseLock() in streaming

• nextjs: Preserve directive prologues in turbopack loaders

• nextjs: Skip custom browser tracing setup for bot user agents

• opentelemetry: Use WeakRef for context stored on scope to prevent memory leak

• replay: Use live click attributes in breadcrumbs

Internal Changes

• e2e-tests: Remove flaky navigation breadcrumb assertions from parameterized-routes tests

• node-integration-tests: Fix flaky kafkajs test race condition