10.28.0

Important Changes

• feat(core): Make matcher parameter optional in makeMultiplexedTransport (#10798)

The matcher parameter in makeMultiplexedTransport is now optional with a sensible default. This makes it much easier to use the multiplexed transport for sending events to multiple DSNs based on runtime configuration.

Before:

import { makeFetchTransport, makeMultiplexedTransport } from '@sentry/browser';

const EXTRA_KEY = 'ROUTE_TO';

const transport = makeMultiplexedTransport(makeFetchTransport, args => {
  const event = args.getEvent();
  if (event?.extra?.[EXTRA_KEY] && Array.isArray(event.extra[EXTRA_KEY])) {
    return event.extra[EXTRA_KEY];
  }
  return [];
});

Sentry.init({
  transport,
  // ... other options
});

// Capture events with routing info
Sentry.captureException(error, {
  extra: {
    [EXTRA_KEY]: [
      { dsn: 'https://key1@sentry.io/project1', release: 'v1.0.0' },
      { dsn: 'https://key2@sentry.io/project2' },
    ],
  },
});

After:

import { makeFetchTransport, makeMultiplexedTransport, MULTIPLEXED_TRANSPORT_EXTRA_KEY } from '@sentry/browser';

// Just pass the transport generator - the default matcher handles the rest!
Sentry.init({
  transport: makeMultiplexedTransport(makeFetchTransport),
  // ... other options
});

// Capture events with routing info using the exported constant
Sentry.captureException(error, {
  extra: {
    [MULTIPLEXED_TRANSPORT_EXTRA_KEY]: [
      { dsn: 'https://key1@sentry.io/project1', release: 'v1.0.0' },
      { dsn: 'https://key2@sentry.io/project2' },
    ],
  },
});

The default matcher looks for routing information in event.extra[MULTIPLEXED_TRANSPORT_EXTRA_KEY]. You can still provide a custom matcher function for advanced use cases.

• feat(nextjs): Support cacheComponents on turbopack (#18304)

This release adds support for cacheComponents on turbopack builds. We are working on adding support for this feature in webpack builds as well.

Other Changes

• feat: Publish AWS Lambda Layer for Node 24 (#18327)
• feat(browser): Expose langchain instrumentation (#18342)
• feat(browser): Expose langgraph instrumentation (#18345)
• feat(cloudflare): Allow specifying a custom fetch in Cloudflare transport options (#18335)
• feat(core): Add isolateTrace option to Sentry.withMonitor() (#18079)
• feat(deps): bump @sentry/webpack-plugin from 4.3.0 to 4.6.1 (#18272)
• feat(nextjs): Add cloudflare waitUntil detection (#18336)
• feat(node): Add LangChain v1 support (#18306)
• feat(remix): Add parameterized transaction naming for routes (#17951)
• fix(cloudflare): Keep http root span alive until streaming responses are consumed (#18087)
• fix(cloudflare): Wait for async events to finish (#18334)
• fix(core): continueTrace doesn't propagate given trace ID if active span exists (#18328)
• fix(node-core): Handle custom scope in log messages without parameters (#18322)
• fix(opentelemetry): Ensure Sentry spans don't leak when tracing is disabled (#18337)
• fix(react-router): Use underscores in trace origin values (#18351)
• chore(tanstackstart-react): Export custom inits from tanstackstart-react (#18369)
• chore(tanstackstart-react)!: Remove empty placeholder implementations (#18338)

<details> <summary><strong>Internal Changes</strong></summary>

• chore: Allow URLs as issue (#18372)
• chore(changelog): Add entry for #18304 (#18329)
• chore(ci): Add action to track all PRs as issues (#18363)
• chore(github): Adjust BUGBOT.md rules to flag invalid op and origin values during review (#18352)
• ci: Add action to create issue on gitflow merge conflicts (#18319)
• ci(deps): bump actions/checkout from 5 to 6 (#18268)
• ci(deps): bump peter-evans/create-pull-request from 7.0.8 to 7.0.9 (#18361)
• test(cloudflare): Add typechecks for cloudflare-worker e2e test (#18321)

</details>

Bundle size 📦

Path	Size
@sentry/browser	24.22 KB
@sentry/browser - with treeshaking flags	22.76 KB
@sentry/browser (incl. Tracing)	40.57 KB
@sentry/browser (incl. Tracing, Profiling)	45.05 KB
@sentry/browser (incl. Tracing, Replay)	78.08 KB
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	68.05 KB
@sentry/browser (incl. Tracing, Replay with Canvas)	82.65 KB
@sentry/browser (incl. Tracing, Replay, Feedback)	94.61 KB
@sentry/browser (incl. Feedback)	40.51 KB
@sentry/browser (incl. sendFeedback)	28.8 KB
@sentry/browser (incl. FeedbackAsync)	33.66 KB
@sentry/react	25.9 KB
@sentry/react (incl. Tracing)	42.72 KB
@sentry/vue	28.56 KB
@sentry/vue (incl. Tracing)	42.32 KB
@sentry/svelte	24.24 KB
CDN Bundle	26.57 KB
CDN Bundle (incl. Tracing)	41.22 KB
CDN Bundle (incl. Tracing, Replay)	76.9 KB
CDN Bundle (incl. Tracing, Replay, Feedback)	82.23 KB
CDN Bundle - uncompressed	78.09 KB
CDN Bundle (incl. Tracing) - uncompressed	122.4 KB
CDN Bundle (incl. Tracing, Replay) - uncompressed	235.71 KB
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	248.17 KB
@sentry/nextjs (client)	44.88 KB
@sentry/sveltekit (client)	40.92 KB
@sentry/node-core	50.06 KB
@sentry/node	155.7 KB
@sentry/node - without tracing	90.67 KB
@sentry/aws-serverless	105.61 KB