publish: getsentry/sentry-javascript@10.49.0 #7826

Important Changes

• feat(browser): Add View Hierarchy integration (#14981)

  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()],
  });

• feat(cloudflare): Split alarms into multiple traces and link them (#19373)

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

• feat(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.

• feat(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.

• feat(opentelemetry): Vendor AsyncLocalStorageContextManager (#20243)

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

Other Changes

• feat(core): Export a reusable function to add tracing headers (#20076)
• feat(core): Expose rewriteSources top level option (#20142)
• feat(deps): bump defu from 6.1.4 to 6.1.6 (#20104)
• feat(node-native): Add support for V8 v14 (Node v25+) (#20125)
• feat(node): Include global scope for eventLoopBlockIntegration (#20108)
• fix(core, node): Support loading Express options lazily (#20211)
• fix(core): Set conversation_id only on gen_ai spans (#20274)
• fix(core): Use ai.operationId for Vercel AI V6 operation name mapping (#20285)
• fix(deno): Avoid inferring invalid span op from Deno tracer (#20128)
• fix(deno): Handle reader.closed rejection from releaseLock() in streaming (#20187)
• fix(nextjs): Preserve directive prologues in turbopack loaders (#20103)
• fix(nextjs): Skip custom browser tracing setup for bot user agents (#20263)
• fix(opentelemetry): Use WeakRef for context stored on scope to prevent memory leak (#20328)
• fix(replay): Use live click attributes in breadcrumbs (#20262)