feat(ios): Expose enableMemoryIntrospection option by antonis · Pull Request #6674 · getsentry/sentry-react-native

antonis · 2026-09-04T08:49:41Z

📢 Type of change

New feature
Bugfix
Enhancement
Refactoring

📜 Description

Exposes the public sentry-cocoa enableMemoryIntrospection option (added in cocoa 9.24.0, PR getsentry/sentry-cocoa#8571) as a typed, documented iOS option on ReactNativeOptions.

When the SDK captures a native crash (e.g. EXC_BAD_ACCESS), SentryCrash reads memory near the crash site and embeds string-based stack contents in the event, which can expose sensitive information (user IDs, personal data) — sometimes even in the issue title. This option lets privacy-sensitive apps keep native crash reporting while omitting memory contents.

iOS-only (@platform ios), @default false (matches Cocoa's default since 9.24.0).
No ObjC bridging needed — iOS options pass straight through to Cocoa via optionsFromDictionary, so the plain SentryOptions.enableMemoryIntrospection boolean is set automatically.
The prior blocker (bundled Cocoa < 9.24.0) is resolved — the SDK now bundles Cocoa 9.27.0.

💡 Motivation and Context

Fixes #6547. Gives privacy-sensitive apps a supported toggle to omit crash-site memory contents from native iOS crash reports.

💚 How did you test it?

Added Swift native tests in RNSentryStartTests.swift:

testMemoryIntrospectionOption — passing enableMemoryIntrospection: true from the RN options dictionary reaches SentrySDK.internal.options.enableMemoryIntrospection.
testMemoryIntrospectionOptionDefault — the option defaults to false when omitted.

Also verified locally: yarn build:sdk, yarn api-report:check (up to date), yarn lint:lerna.

📝 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.
Public API changes reviewed by another Mobile SDK team member or implemented according to the develop docs spec.
No breaking changes.

🔮 Next steps

Docs update: getsentry/sentry-docs#19276

🤖 Generated with Claude Code

Surfaces the public sentry-cocoa `enableMemoryIntrospection` option (added in cocoa 9.24.0, default false) as a typed, documented iOS option. Lets privacy-sensitive apps keep native crash reporting while omitting memory contents that SentryCrash reads near the crash site. The option passes straight through to Cocoa via optionsFromDictionary, so no ObjC bridging is required. Fixes #6547 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

github-actions · 2026-09-04T08:50:02Z

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(ios): Expose enableMemoryIntrospection option by antonis in #6674

feat(android): Add anrProfilingSampleRate option by antonis in #6673
ci: Unpin Android E2E emulator build by antonis in #6672
ref(ios): Remove deprecated private SDK API usage by philprime in #6647
chore(deps): update Cocoa SDK to v9.27.0 by github-actions in #6670
chore(deps): update Sentry Android Gradle Plugin to v6.21.0 by github-actions in #6671
chore(deps): Bump fast-uri to ^3.1.6 to resolve security alerts by antonis in #6662
chore(deps): Bump qs to ^6.16.0 to resolve security alerts by antonis in #6663
chore(deps): Bump @xmldom/xmldom pins to patched versions to resolve security alerts by antonis in #6664
docs: Revamp root and nested AGENTS.md by antonis in #6666

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

github-actions · 2026-09-04T08:50:19Z

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🚫	Pull request is not ready for merge, please add the "ready-to-merge" label to the pull request

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

Generated by 🚫 dangerJS against 23e5815

sentry · 2026-09-04T09:02:50Z

📲 Install Builds

Android

🔗 App Name	App ID	Version	Configuration
Sentry RN	io.sentry.reactnative.sample	8.25.0 (105)	Release

⚙️ sentry-react-native Build Distribution Settings

github-actions · 2026-09-04T09:03:20Z

Android (legacy) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	426.90 ms	435.53 ms	8.63 ms
Size	50.56 MiB	56.46 MiB	5.90 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`68672fc`+dirty	425.02 ms	487.56 ms	62.54 ms
`71abba0`+dirty	496.54 ms	525.16 ms	28.63 ms
`7ff4d0f`+dirty	413.81 ms	450.64 ms	36.83 ms
`9ad4522`+dirty	420.73 ms	444.18 ms	23.45 ms
`0a147b2`+dirty	464.71 ms	538.81 ms	74.09 ms
`d2eadf8`+dirty	414.64 ms	454.56 ms	39.92 ms
`57e0069`+dirty	413.82 ms	453.47 ms	39.65 ms
`26843eb`+dirty	532.15 ms	624.13 ms	91.98 ms
`9210ae6`+dirty	475.41 ms	525.24 ms	49.84 ms
`1e5d96d`+dirty	519.43 ms	543.62 ms	24.19 ms

App size

Revision	Plain	With Sentry	Diff
`68672fc`+dirty	48.30 MiB	53.61 MiB	5.31 MiB
`71abba0`+dirty	48.30 MiB	53.49 MiB	5.19 MiB
`7ff4d0f`+dirty	48.30 MiB	53.60 MiB	5.30 MiB
`9ad4522`+dirty	49.74 MiB	55.38 MiB	5.63 MiB
`0a147b2`+dirty	49.74 MiB	55.08 MiB	5.34 MiB
`d2eadf8`+dirty	48.30 MiB	53.48 MiB	5.18 MiB
`57e0069`+dirty	49.74 MiB	54.85 MiB	5.11 MiB
`26843eb`+dirty	49.74 MiB	55.26 MiB	5.52 MiB
`9210ae6`+dirty	48.30 MiB	53.54 MiB	5.23 MiB
`1e5d96d`+dirty	49.74 MiB	54.81 MiB	5.07 MiB

Previous results on branch: feat/expose-ios-memory-introspection

Startup times

Revision	Plain	With Sentry	Diff
`2f5fe5c`+dirty	426.20 ms	456.62 ms	30.42 ms

App size

Revision	Plain	With Sentry	Diff
`2f5fe5c`+dirty	50.56 MiB	56.46 MiB	5.90 MiB

github-actions · 2026-09-04T09:13:37Z

iOS (legacy) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	3853.29 ms	1227.77 ms	-2625.52 ms
Size	5.15 MiB	6.88 MiB	1.73 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`ecf47a2`+dirty	3835.20 ms	1222.43 ms	-2612.77 ms
`3817909`+dirty	1183.90 ms	1187.50 ms	3.60 ms
`5ee78d6`+dirty	3847.52 ms	1224.27 ms	-2623.25 ms
`890d145`+dirty	1223.59 ms	1231.37 ms	7.78 ms
`e763471`+dirty	3841.16 ms	1218.06 ms	-2623.09 ms
`3d31fcf`+dirty	3838.09 ms	1223.46 ms	-2614.63 ms
`9210ae6`+dirty	3815.93 ms	1214.14 ms	-2601.79 ms
`26843eb`+dirty	3861.60 ms	1238.77 ms	-2622.82 ms
`7a89652`+dirty	3861.46 ms	1229.61 ms	-2631.85 ms
`9ad4522`+dirty	3850.40 ms	1222.40 ms	-2628.00 ms

App size

Revision	Plain	With Sentry	Diff
`ecf47a2`+dirty	4.98 MiB	6.46 MiB	1.49 MiB
`3817909`+dirty	3.38 MiB	4.73 MiB	1.35 MiB
`5ee78d6`+dirty	5.15 MiB	6.69 MiB	1.53 MiB
`890d145`+dirty	3.38 MiB	4.77 MiB	1.38 MiB
`e763471`+dirty	4.98 MiB	6.51 MiB	1.53 MiB
`3d31fcf`+dirty	4.98 MiB	6.56 MiB	1.58 MiB
`9210ae6`+dirty	5.15 MiB	6.68 MiB	1.53 MiB
`26843eb`+dirty	4.98 MiB	6.53 MiB	1.55 MiB
`7a89652`+dirty	5.15 MiB	6.70 MiB	1.55 MiB
`9ad4522`+dirty	4.98 MiB	6.56 MiB	1.58 MiB

Previous results on branch: feat/expose-ios-memory-introspection

Startup times

Revision	Plain	With Sentry	Diff
`2f5fe5c`+dirty	3861.06 ms	1229.91 ms	-2631.15 ms

App size

Revision	Plain	With Sentry	Diff
`2f5fe5c`+dirty	5.15 MiB	6.88 MiB	1.73 MiB

github-actions · 2026-09-04T09:17:16Z

iOS (new) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	3866.72 ms	1229.02 ms	-2637.70 ms
Size	5.15 MiB	6.88 MiB	1.73 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`71abba0`+dirty	3852.70 ms	1224.53 ms	-2628.16 ms
`bc0d8cf`+dirty	3834.64 ms	1223.91 ms	-2610.73 ms
`68ae91b`+dirty	3836.36 ms	1222.04 ms	-2614.32 ms
`267d3ed`+dirty	3860.14 ms	1223.39 ms	-2636.76 ms
`f170ec3`+dirty	3844.74 ms	1222.67 ms	-2622.07 ms
`b9bebee`+dirty	3858.02 ms	1231.92 ms	-2626.11 ms
`d038a14`+dirty	3831.11 ms	1216.30 ms	-2614.81 ms
`853723c`+dirty	3849.33 ms	1221.07 ms	-2628.26 ms
`e763471`+dirty	3826.10 ms	1221.52 ms	-2604.58 ms
`3d31fcf`+dirty	3857.46 ms	1237.17 ms	-2620.29 ms

App size

Revision	Plain	With Sentry	Diff
`71abba0`+dirty	5.15 MiB	6.67 MiB	1.52 MiB
`bc0d8cf`+dirty	5.15 MiB	6.67 MiB	1.51 MiB
`68ae91b`+dirty	4.98 MiB	6.46 MiB	1.48 MiB
`267d3ed`+dirty	5.15 MiB	6.69 MiB	1.54 MiB
`f170ec3`+dirty	5.15 MiB	6.69 MiB	1.53 MiB
`b9bebee`+dirty	5.15 MiB	6.68 MiB	1.53 MiB
`d038a14`+dirty	5.15 MiB	6.67 MiB	1.51 MiB
`853723c`+dirty	5.15 MiB	6.69 MiB	1.53 MiB
`e763471`+dirty	4.98 MiB	6.51 MiB	1.53 MiB
`3d31fcf`+dirty	4.98 MiB	6.56 MiB	1.58 MiB

github-actions · 2026-09-04T09:24:24Z

Android (new) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	531.53 ms	579.60 ms	48.07 ms
Size	50.56 MiB	56.46 MiB	5.90 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`eb93136`+dirty	500.37 ms	532.58 ms	32.21 ms
`9210ae6`+dirty	444.14 ms	459.80 ms	15.66 ms
`94af3bd`+dirty	413.04 ms	451.76 ms	38.71 ms
`7d6fd3a`+dirty	435.06 ms	458.78 ms	23.72 ms
`15d4514`+dirty	413.63 ms	449.62 ms	35.99 ms
`9ad4522`+dirty	432.43 ms	450.91 ms	18.49 ms
`0a147b2`+dirty	442.80 ms	522.24 ms	79.44 ms
`7887847`+dirty	420.47 ms	460.55 ms	40.08 ms
`a3265b6`+dirty	410.96 ms	444.76 ms	33.80 ms
`57e0069`+dirty	442.25 ms	486.64 ms	44.39 ms

App size

Revision	Plain	With Sentry	Diff
`eb93136`+dirty	48.30 MiB	53.58 MiB	5.28 MiB
`9210ae6`+dirty	48.30 MiB	53.54 MiB	5.23 MiB
`94af3bd`+dirty	48.30 MiB	53.57 MiB	5.26 MiB
`7d6fd3a`+dirty	43.94 MiB	49.00 MiB	5.06 MiB
`15d4514`+dirty	48.30 MiB	53.60 MiB	5.30 MiB
`9ad4522`+dirty	49.74 MiB	55.38 MiB	5.63 MiB
`0a147b2`+dirty	49.74 MiB	55.08 MiB	5.34 MiB
`7887847`+dirty	49.74 MiB	54.81 MiB	5.07 MiB
`a3265b6`+dirty	48.30 MiB	53.58 MiB	5.28 MiB
`57e0069`+dirty	49.74 MiB	54.85 MiB	5.11 MiB

Previous results on branch: feat/expose-ios-memory-introspection

Startup times

Revision	Plain	With Sentry	Diff
`2f5fe5c`+dirty	421.81 ms	437.12 ms	15.30 ms

App size

Revision	Plain	With Sentry	Diff
`2f5fe5c`+dirty	50.56 MiB	56.46 MiB	5.90 MiB

Add wrapper.test.ts coverage mirroring the enableMetricKit tests, so the bridge passthrough is validated at the boundary and future refactors can't silently drop the option. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

lucas-zimerman

LGTM!

## DESCRIBE YOUR PR ⚠️ Should be merged after getsentry/sentry-react-native#6674 is released Documents the new `anrProfilingSampleRate` option for the React Native SDK on Android. When set, the SDK profiles the main thread during a detected foreground ANR and attaches the resulting flamegraph to the ANR event on the next app start. Adds an **ANR Profiling on Android** section to the React Native [App Hangs](https://docs.sentry.io/platforms/react-native/configuration/app-hangs/) page, alongside the existing NDK app-hang tracking docs. It includes the billing note (powered by the Profiling platform, billed as UI Profile Hours) and links to the `sentry-java` ANR profiling docs for deeper detail. Accompanies the SDK change: getsentry/sentry-react-native#6673. ANR profiling graduated out of experimental in sentry-java 8.55.0 (getsentry/sentry-java#6042), which the RN SDK now bundles. > [!NOTE] > This should merge once/after the SDK release that ships `anrProfilingSampleRate` (the accompanying SDK PR) is out. ## IS YOUR CHANGE URGENT? - [ ] Urgent deadline (GA date, etc.): YYYY-MM-DD - [ ] Other deadline: YYYY-MM-DD - [x] No deadline: Not urgent, can wait up to 1 week+ ## PRE-MERGE CHECKLIST - [ ] Checked Vercel preview for correctness, including links - [ ] PR was reviewed and approved by any necessary SMEs (subject matter experts) - [ ] PR was reviewed and approved by a member of the [Sentry docs team](https://github.com/orgs/getsentry/teams/docs) ## EXTRA RESOURCES - [Sentry Docs contributor guide](https://docs.sentry.io/contributing/) Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

…9276) ## DESCRIBE YOUR PR ⚠️ Should be merged after getsentry/sentry-react-native#6674 is released Documents the new iOS-only `enableMemoryIntrospection` option in the React Native configuration reference (Hybrid SDK Options). When the SDK captures a native crash on iOS (e.g. `EXC_BAD_ACCESS`), `SentryCrash` reads memory near the crash site and embeds string-based stack contents in the event, which can expose sensitive information. This option lets privacy-sensitive apps keep native crash reporting while omitting memory contents. Companion SDK change: getsentry/sentry-react-native#6674 (resolves getsentry/sentry-react-native#6547). The option ships in React Native SDK `8.26.0`, so the `availableSince` reflects that — please hold merge until that release is out. ## IS YOUR CHANGE URGENT? - [ ] Urgent deadline (GA date, etc.): YYYY-MM-DD - [ ] Other deadline: YYYY-MM-DD - [x] No deadline: Not urgent, can wait up to 1 week+ ## PRE-MERGE CHECKLIST - [ ] Checked Vercel preview for correctness, including links - [ ] PR was reviewed and approved by any necessary SMEs (subject matter experts) - [ ] PR was reviewed and approved by a member of the Sentry docs team

antonis added the ready-to-merge Triggers the full CI test suite label Sep 4, 2026

antonis commented Sep 4, 2026

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Comment thread CHANGELOG.md Outdated

Update changelog

4b591f1

This was referenced Sep 4, 2026

feat(react-native): Document enableMemoryIntrospection iOS option getsentry/sentry-docs#19276

Merged

feat(react-native): Document anrProfilingSampleRate for Android getsentry/sentry-docs#19274

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antonis marked this pull request as ready for review September 4, 2026 09:08

antonis requested review from alwx and lucas-zimerman as code owners September 4, 2026 09:08

Merge branch 'main' into feat/expose-ios-memory-introspection

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sentry Bot reviewed Sep 4, 2026

View reviewed changes

Comment thread packages/core/src/js/options.ts

lucas-zimerman approved these changes Sep 5, 2026

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antonis removed the ready-to-merge Triggers the full CI test suite label Sep 7, 2026

antonis enabled auto-merge (squash) September 7, 2026 06:49

Merge branch 'main' into feat/expose-ios-memory-introspection

23e5815

antonis merged commit 2783038 into main Sep 7, 2026
52 of 67 checks passed

antonis deleted the feat/expose-ios-memory-introspection branch September 7, 2026 06:53

sentry-release-bot Bot mentioned this pull request Sep 10, 2026

publish: getsentry/sentry-react-native@8.26.0 getsentry/publish#9484

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Android

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Android (legacy) Performance metrics 🚀

Baseline results on branch: main

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Previous results on branch: feat/expose-ios-memory-introspection

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iOS (legacy) Performance metrics 🚀

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Previous results on branch: feat/expose-ios-memory-introspection

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