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fix(v10/browser): Skip profiling for unsampled active root spans - #25502

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Lms24 merged 1 commit into
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backport/v10-25498-browser-profiling-unsampled-root-span
Oct 19, 2026
Merged

Lms24 merged 1 commit into
v10from
backport/v10-25498-browser-profiling-unsampled-root-span

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@sentry-junior sentry-junior Bot commented Oct 19, 2026

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Backport of: #25498

Differences to the original PR

  • packages/browser/test/profiling/integration.test.ts: the two new tests use v10's existing import * as Sentry from '@sentry/browser' style (Sentry.init, Sentry.addIntegration, etc.) instead of named imports from ../../src/index. That import block conflicted because v10's test file still uses the namespace import.
  • Same file: the unsampled-pageload test uses Sentry.spanToJSON instead of spanToStaticSpanJSON, because spanToStaticSpanJSON doesn't exist on v10.

The source change in UIProfiler.ts is identical to the original.

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size-limit report 📦

Path Size % Change Change
@sentry/browser 28.21 kB added added
@sentry/browser - with treeshaking flags 26.66 kB added added
@sentry/browser (incl. Tracing) 47.23 kB added added
@sentry/browser (incl. Tracing + Span Streaming) 49.03 kB added added
@sentry/browser (incl. Tracing, Profiling) 52.02 kB added added
@sentry/browser (incl. Tracing, Replay) 86.64 kB added added
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags 76.27 kB added added
@sentry/browser (incl. Tracing, Replay with Canvas) 91.35 kB added added
@sentry/browser (incl. Tracing, Replay, Feedback) 103.97 kB added added
@sentry/browser (incl. Feedback) 45.38 kB added added
@sentry/browser (incl. sendFeedback) 33.01 kB added added
@sentry/browser (incl. FeedbackAsync) 38.14 kB added added
@sentry/browser (incl. Metrics) 29.31 kB added added
@sentry/browser (incl. Logs) 29.55 kB added added
@sentry/browser (incl. Metrics & Logs) 30.22 kB added added
@sentry/react 30.02 kB added added
@sentry/react (incl. Tracing) 49.53 kB added added
@sentry/vue 34.1 kB added added
@sentry/vue (incl. Tracing) 49.61 kB added added
@sentry/svelte 28.24 kB added added
CDN Bundle 30.62 kB added added
CDN Bundle (incl. Tracing) 49.18 kB added added
CDN Bundle (incl. Logs, Metrics) 32.19 kB added added
CDN Bundle (incl. Tracing, Logs, Metrics) 50.49 kB added added
CDN Bundle (incl. Replay, Logs, Metrics) 71.62 kB added added
CDN Bundle (incl. Tracing, Replay) 86.87 kB added added
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) 88.16 kB added added
CDN Bundle (incl. Tracing, Replay, Feedback) 92.68 kB added added
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) 93.97 kB added added
CDN Bundle - uncompressed 91 kB added added
CDN Bundle (incl. Tracing) - uncompressed 148.26 kB added added
CDN Bundle (incl. Logs, Metrics) - uncompressed 95.71 kB added added
CDN Bundle (incl. Tracing, Logs, Metrics) - uncompressed 152.24 kB added added
CDN Bundle (incl. Replay, Logs, Metrics) - uncompressed 221.06 kB added added
CDN Bundle (incl. Tracing, Replay) - uncompressed 268.08 kB added added
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) - uncompressed 272.05 kB added added
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed 281.78 kB added added
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) - uncompressed 285.74 kB added added
@sentry/nextjs (client) 52.1 kB added added
@sentry/sveltekit (client) 47.66 kB added added
@sentry/core/server 81.62 kB added added
@sentry/core/browser 67.67 kB added added
@sentry/node-core 64.04 kB added added
@sentry/node 127.22 kB added added
@sentry/node (incl. diagnostics channel injection) 171.41 kB added added
@sentry/node/import (ESM hook with diagnostics-channel injection) 166 B added added
@sentry/node/light 52.09 kB added added
@sentry/node - without tracing 75.82 kB added added
@sentry/aws-serverless 84.99 kB added added
@sentry/cloudflare (withSentry) - minified 204.93 kB added added
@sentry/cloudflare (withSentry) 505.2 kB added added

@Lms24
Lms24 marked this pull request as ready for review October 19, 2026 08:03
@Lms24
Lms24 requested a review from a team as a code owner October 19, 2026 08:03
@Lms24
Lms24 requested review from logaretm and mydea and removed request for a team October 19, 2026 08:03
@Lms24
Lms24 enabled auto-merge (squash) October 19, 2026 08:06
@Lms24
Lms24 merged commit 00a32b4 into v10 Oct 19, 2026
216 checks passed
@Lms24
Lms24 deleted the backport/v10-25498-browser-profiling-unsampled-root-span branch October 19, 2026 08:07
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