feat(core): Warn when multiple versions of Sentry JS SDK are detected by antonis · Pull Request #6269 · getsentry/sentry-react-native

antonis · 2026-06-09T14:47:11Z

📢 Type of change

Bugfix
New feature
Enhancement
Refactoring

📜 Description

Adds a dev-only runtime check during Sentry.init() that detects when multiple versions of @sentry/core are loaded in the same application

💡 Motivation and Context

Closes #3769

💚 How did you test it?

Unit tests covering: single version (no warn), two versions, 3+ versions, version key false positive, missing carrier, production skip, and error resilience

📝 Checklist

I added tests to verify changes
No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled
I updated the docs if needed.
I updated the wizard if needed.
All tests passing
No breaking changes

🔮 Next steps

Adds a dev-only runtime check during `Sentry.init()` that inspects the global `__SENTRY__` carrier for multiple SDK version keys. If found, logs a warning via `debug.warn` to help users diagnose version mismatch issues in monorepos. Closes #3769 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

github-actions · 2026-06-09T14:47:35Z

Semver Impact of This PR

⚪ None (no version bump detected)

📋 Changelog Preview

This is how your changes will appear in the changelog.
Entries from this PR are highlighted with a left border (blockquote style).

feat(core): Warn when multiple versions of Sentry JS SDK are detected by antonis in #6269

_{🤖 This preview updates automatically when you update the PR.}

github-actions · 2026-06-09T14:47:49Z

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Generated by 🚫 dangerJS against a863084

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

cursor

✅ Bugbot reviewed your changes and found no new issues!

Comment @cursor review or bugbot run to trigger another review on this PR

^{Reviewed by Cursor Bugbot for commit 7bb9d60. Configure here.}

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lucas-zimerman

LGTM!

github-actions · 2026-06-12T12:07:17Z

Android (legacy) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	432.94 ms	466.22 ms	33.28 ms
Size	48.30 MiB	53.57 MiB	5.26 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`15d4514`+dirty	406.77 ms	428.06 ms	21.29 ms
`038a6d7`+dirty	524.82 ms	531.92 ms	7.10 ms
`4b87b12`+dirty	421.82 ms	413.60 ms	-8.22 ms
`5ee78d6`+dirty	551.80 ms	568.27 ms	16.47 ms
`853723c`+dirty	405.54 ms	440.08 ms	34.54 ms
`4966363`+dirty	400.04 ms	431.08 ms	31.04 ms
`7ff4d0f`+dirty	413.81 ms	450.64 ms	36.83 ms
`bc0d8cf`+dirty	412.37 ms	466.26 ms	53.89 ms
`ef27341`+dirty	412.94 ms	443.98 ms	31.04 ms
`2c735cc`+dirty	414.09 ms	438.47 ms	24.38 ms

App size

Revision	Plain	With Sentry	Diff
`15d4514`+dirty	48.30 MiB	53.60 MiB	5.30 MiB
`038a6d7`+dirty	48.30 MiB	53.60 MiB	5.30 MiB
`4b87b12`+dirty	43.75 MiB	48.14 MiB	4.39 MiB
`5ee78d6`+dirty	48.30 MiB	53.58 MiB	5.28 MiB
`853723c`+dirty	48.30 MiB	53.58 MiB	5.28 MiB
`4966363`+dirty	48.30 MiB	53.54 MiB	5.24 MiB
`7ff4d0f`+dirty	48.30 MiB	53.60 MiB	5.30 MiB
`bc0d8cf`+dirty	48.30 MiB	53.48 MiB	5.18 MiB
`ef27341`+dirty	48.30 MiB	53.54 MiB	5.24 MiB
`2c735cc`+dirty	43.75 MiB	48.08 MiB	4.33 MiB

github-actions · 2026-06-12T12:10:00Z

iOS (legacy) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	3865.53 ms	1226.39 ms	-2639.14 ms
Size	5.15 MiB	6.69 MiB	1.53 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`7ac3378`+dirty	1213.37 ms	1218.15 ms	4.78 ms
`1122a96`+dirty	3823.10 ms	1218.64 ms	-2604.46 ms
`5748023`+dirty	3840.49 ms	1227.43 ms	-2613.05 ms
`b0d3373`+dirty	3831.75 ms	1227.29 ms	-2604.46 ms
`6177334`+dirty	3834.85 ms	1217.58 ms	-2617.28 ms
`3ce5254`+dirty	1219.93 ms	1221.90 ms	1.96 ms
`5569641`+dirty	3839.22 ms	1231.30 ms	-2607.91 ms
`5257d80`+dirty	3854.39 ms	1234.28 ms	-2620.11 ms
`882f8ae`+dirty	3840.30 ms	1224.41 ms	-2615.88 ms
`5c1e987`+dirty	1204.30 ms	1222.15 ms	17.85 ms

App size

Revision	Plain	With Sentry	Diff
`7ac3378`+dirty	3.38 MiB	4.76 MiB	1.38 MiB
`1122a96`+dirty	5.15 MiB	6.68 MiB	1.53 MiB
`5748023`+dirty	5.15 MiB	6.68 MiB	1.53 MiB
`b0d3373`+dirty	5.15 MiB	6.68 MiB	1.53 MiB
`6177334`+dirty	5.15 MiB	6.68 MiB	1.53 MiB
`3ce5254`+dirty	3.38 MiB	4.76 MiB	1.38 MiB
`5569641`+dirty	5.15 MiB	6.67 MiB	1.51 MiB
`5257d80`+dirty	5.15 MiB	6.69 MiB	1.54 MiB
`882f8ae`+dirty	5.15 MiB	6.70 MiB	1.54 MiB
`5c1e987`+dirty	3.38 MiB	4.73 MiB	1.35 MiB

sentry · 2026-06-12T12:12:44Z

📲 Install Builds

Android

🔗 App Name	App ID	Version	Configuration
Sentry RN	io.sentry.reactnative.sample	8.14.0 (91)	Release

⚙️ sentry-react-native Build Distribution Settings

github-actions · 2026-06-12T12:19:46Z

iOS (new) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	3835.96 ms	1218.66 ms	-2617.30 ms
Size	5.15 MiB	6.69 MiB	1.53 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`7ac3378`+dirty	1202.35 ms	1198.31 ms	-4.04 ms
`1122a96`+dirty	3839.17 ms	1219.23 ms	-2619.93 ms
`5748023`+dirty	3844.74 ms	1225.49 ms	-2619.26 ms
`b0d3373`+dirty	3842.49 ms	1218.49 ms	-2624.00 ms
`6177334`+dirty	3851.52 ms	1226.23 ms	-2625.29 ms
`3ce5254`+dirty	1217.70 ms	1224.69 ms	6.99 ms
`5569641`+dirty	3824.35 ms	1210.78 ms	-2613.57 ms
`5257d80`+dirty	3845.40 ms	1226.21 ms	-2619.19 ms
`882f8ae`+dirty	3842.51 ms	1230.40 ms	-2612.11 ms
`5c1e987`+dirty	1208.43 ms	1220.72 ms	12.29 ms

App size

Revision	Plain	With Sentry	Diff
`7ac3378`+dirty	3.38 MiB	4.76 MiB	1.38 MiB
`1122a96`+dirty	5.15 MiB	6.68 MiB	1.53 MiB
`5748023`+dirty	5.15 MiB	6.68 MiB	1.53 MiB
`b0d3373`+dirty	5.15 MiB	6.68 MiB	1.53 MiB
`6177334`+dirty	5.15 MiB	6.68 MiB	1.53 MiB
`3ce5254`+dirty	3.38 MiB	4.76 MiB	1.38 MiB
`5569641`+dirty	5.15 MiB	6.67 MiB	1.51 MiB
`5257d80`+dirty	5.15 MiB	6.69 MiB	1.54 MiB
`882f8ae`+dirty	5.15 MiB	6.70 MiB	1.54 MiB
`5c1e987`+dirty	3.38 MiB	4.73 MiB	1.35 MiB

github-actions · 2026-06-12T12:23:25Z

Android (new) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	406.32 ms	452.38 ms	46.06 ms
Size	48.30 MiB	53.57 MiB	5.26 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`15d4514`+dirty	413.63 ms	449.62 ms	35.99 ms
`df5d108`+dirty	434.82 ms	447.39 ms	12.57 ms
`038a6d7`+dirty	499.02 ms	527.68 ms	28.66 ms
`5ee78d6`+dirty	411.18 ms	437.83 ms	26.65 ms
`4953e94`+dirty	398.80 ms	431.81 ms	33.01 ms
`853723c`+dirty	415.82 ms	460.94 ms	45.12 ms
`4966363`+dirty	415.67 ms	448.60 ms	32.93 ms
`7ff4d0f`+dirty	403.38 ms	427.06 ms	23.68 ms
`ef27341`+dirty	519.02 ms	553.42 ms	34.40 ms
`a50b33d`+dirty	353.21 ms	398.48 ms	45.27 ms

App size

Revision	Plain	With Sentry	Diff
`15d4514`+dirty	48.30 MiB	53.60 MiB	5.30 MiB
`df5d108`+dirty	43.94 MiB	48.94 MiB	5.00 MiB
`038a6d7`+dirty	48.30 MiB	53.60 MiB	5.30 MiB
`5ee78d6`+dirty	48.30 MiB	53.58 MiB	5.28 MiB
`4953e94`+dirty	43.94 MiB	48.94 MiB	5.00 MiB
`853723c`+dirty	48.30 MiB	53.58 MiB	5.28 MiB
`4966363`+dirty	48.30 MiB	53.54 MiB	5.24 MiB
`7ff4d0f`+dirty	48.30 MiB	53.60 MiB	5.30 MiB
`ef27341`+dirty	48.30 MiB	53.54 MiB	5.24 MiB
`a50b33d`+dirty	43.94 MiB	48.94 MiB	5.00 MiB

docs: Add changelog entry for SDK version mismatch warning

3c2d04f

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

cursor Bot reviewed Jun 9, 2026

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antonis marked this pull request as ready for review June 9, 2026 15:09

antonis requested review from alwx and lucas-zimerman as code owners June 9, 2026 15:09

Merge branch 'main' into antonis/warn-multiple-sdk-versions

19611d8

lucas-zimerman reviewed Jun 11, 2026

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Comment thread CHANGELOG.md Outdated

lucas-zimerman reviewed Jun 11, 2026

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Comment thread packages/core/src/js/utils/sdkVersionCheck.ts Outdated

lucas-zimerman requested changes Jun 11, 2026

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antonis and others added 2 commits June 12, 2026 10:08

refactor(core): Move __DEV__ guard to call site in sdk.tsx

682b73f

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs: Move changelog entry to Unreleased section

a863084

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

antonis requested a review from lucas-zimerman June 12, 2026 08:11

lucas-zimerman added the ready-to-merge Triggers the full CI test suite label Jun 12, 2026

lucas-zimerman approved these changes Jun 12, 2026

View reviewed changes

antonis merged commit 0bd8916 into main Jun 12, 2026
112 of 118 checks passed

antonis deleted the antonis/warn-multiple-sdk-versions branch June 12, 2026 12:43

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📢 Type of change

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💚 How did you test it?

📝 Checklist

🔮 Next steps

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github-actions Bot commented Jun 12, 2026

Android (legacy) Performance metrics 🚀

Baseline results on branch: main

Startup times

App size

Uh oh!

github-actions Bot commented Jun 12, 2026

iOS (legacy) Performance metrics 🚀

Baseline results on branch: main

Startup times

App size

Uh oh!

sentry Bot commented Jun 12, 2026

📲 Install Builds

Android

Uh oh!

github-actions Bot commented Jun 12, 2026

iOS (new) Performance metrics 🚀

Baseline results on branch: main

Startup times

App size

Uh oh!

github-actions Bot commented Jun 12, 2026

Android (new) Performance metrics 🚀

Baseline results on branch: main

Startup times

App size

Uh oh!

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antonis commented Jun 9, 2026 •

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