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[CP-beta]Rolls libpng to 1.6.58 - #191456

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Aug 24, 2026
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@flutteractionsbot flutteractionsbot commented Aug 20, 2026 •

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This pull request is created by automatic cherry pick workflow
Please fill in the form below, and a flutter domain expert will evaluate this cherry pick request.

Issue Link:

What is the link to the issue this cherry-pick is addressing?

#190987

Impact Description:

What is the impact (ex. visual jank on Samsung phones, app crash, cannot ship an iOS app)?
Does it impact development (ex. flutter doctor crashes when Android Studio is installed),
or the shipping of production apps (the app crashes on launch).
This information is for domain experts and release engineers to understand the consequences of saying yes or no to the cherry pick.

This updates libpng.

Changelog Description:

Explain this cherry pick:

  • In one line that is accessible to most Flutter developers.
  • That describes the state prior to the fix.
  • That includes which platforms are impacted.
    See best practices for examples.

< Replace with changelog description here >
[flutter/190987] Updates libpng.

Workaround:

Is there a workaround for this issue?

No.

Risk:

What is the risk level of this cherry-pick?

  • Low
  • Medium
  • High

Test Coverage:

Are you confident that your fix is well-tested by automated tests?

  • Yes
  • No

Validation Steps:

What are the steps to validate that this fix works?

Use Flutter with a PNG asset.

issue flutter#190987

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [AI contribution guidelines] and understand my
responsibilities, or I am not using AI tools.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

If this change needs to override an active code freeze, provide a
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<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[AI contribution guidelines]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#ai-contribution-guidelines
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md
[Features we expect every widget to implement]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md
[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
@flutteractionsbot flutteractionsbot added the cp: review Cherry-picks in the review queue label Aug 20, 2026
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@gaaclarke please fill out the PR description above, afterwards the release team will review this request.

@flutter-dashboard flutter-dashboard Bot added the CICD Run CI/CD label Aug 20, 2026
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Note

Gemini is unable to generate a review for this pull request due to the file types involved not being currently supported.

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This pull request was opened from and to a release candidate branch. This should only be done as part of the official Flutter release process. If you are attempting to make a regular contribution to the Flutter project, please close this PR and follow the instructions at Tree Hygiene for detailed instructions on contributing to Flutter.

Reviewers: Use caution before merging pull requests to release branches. Ensure the proper procedure has been followed.

@github-actions github-actions Bot added the engine flutter/engine related. See also e: labels. label Aug 20, 2026
@camsim99 camsim99 added the autosubmit Merge PR when tree becomes green via auto submit App label Aug 24, 2026
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auto-submit Bot merged commit 3816f7b into flutter:flutter-3.48-candidate.0 Aug 24, 2026
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flutteractionsbot deleted the cp-beta-a72028256d65c8631415534ba6da5537f17332d4 branch August 24, 2026 23:09
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