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Revert: Updated Most flutter/flutter Defaults to 37 - #193891

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Reverts: Updated Most flutter/flutter Defaults to 37

Initiated by: @jesswrd

Reason for reverting: broke the tree

Original PR Author: @jesswrd

Reviewed By: @mboetger

The original PR description is provided below:

In this step, we generally update the compileSdk version to 37, the ndkVersion to a compatible version, and any test targets to API 37.

We did not bump ndkVersion because the current version is already compatible here. There was also only one outstanding test target that needed to be bumped to API 37.

Partially Addresses #189518

Pre-launch Checklist

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If this change needs to override an active code freeze, provide a comment explaining why. The code freeze workflow can be overridden by code reviewers. See pinned issues for any active code freezes with guidance.

Note: The Flutter team is currently trialing the use of Gemini Code Assist for GitHub. Comments from the gemini-code-assist bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed.

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flutteractionsbot requested a review from a team as a code owner October 6, 2026 07:38
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flutteractionsbot requested review from jesswrd and removed request for a team October 6, 2026 07:38
@flutter-dashboard flutter-dashboard Bot added the CICD Run CI/CD label Oct 6, 2026
@github-actions github-actions Bot added platform-android Android applications specifically tool Affects the "flutter" command-line tool. See also t: labels. team-android Owned by Android platform team labels Oct 6, 2026

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Code Review

This pull request downgrades the default Android compile SDK version from 37 to 36 across various build configurations and tools, updates the pinned Android preview SDK from CinnamonBun to Baklava, and adjusts Gradle/AGP test versions. Feedback suggests retaining the documentation in .ci.yaml regarding preview SDK synchronization, and keeping the previewCodename constant in the integration tests with the updated value 'Baklava' to avoid hardcoding and state duplication.

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.ci.yaml (1682-1687)

medium

Instead of removing the helpful comments about keeping the preview SDK version in sync with previewCodename in the integration tests, we should keep them and update the references to Baklava and baklava_v1.

      # This makes use of Baklava, a preview version of android. Preview versions eventually
      # get removed from the sdk manager, so it is hosted on CIPD to ensure integration testing
      # doesn't flake when that happens. The preview must be at least FlutterExtension.compileSdkVersion.
      # Keep in sync with `previewCodename` in
      # packages/flutter_tools/test/android_preview_integration.shard/flutter_build_preview_sdk_test.dart.
      # https://chrome-infra-packages.appspot.com/p/flutter/android/sdk/all/linux-amd64/+/version:baklava_v1
References
  1. Optimize for readability and maintainability by keeping useful documentation and cross-references. (link)

packages/flutter_tools/test/android_preview_integration.shard/flutter_build_preview_sdk_test.dart (11-21)

medium

Instead of completely removing the previewCodename constant and hardcoding 'Baklava' in multiple places throughout this test file, we should keep the constant and update its value to 'Baklava'. This avoids duplicating state and keeps a single source of truth as recommended by the style guide.

/// The Android preview SDK codename used by these tests.
///
/// This must be a preview of an API level that is at least
/// `FlutterExtension.compileSdkVersion`. Flutter libraries such as
/// `integration_test` compile against `flutter.compileSdkVersion`, and AGP 9
/// requires consumers to compile against the same or a higher API level.
///
/// The preview platform is provided on CI by the `android_sdk` CIPD package
/// pinned in the `Linux android_preview_tool_integration_tests` target in
/// `.ci.yaml`; keep the two in sync.
const previewCodename = 'Baklava';
References
  1. Avoid duplicating state: Keep only one source of truth. (link)

@jesswrd jesswrd added the emergency Jump the queue; land PR in front of all others; only use for emergencies label Oct 6, 2026
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@jesswrd jesswrd added the autosubmit Merge PR when tree becomes green via auto submit App label Oct 6, 2026
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Merged via the queue into flutter:master with commit cc96366 Oct 6, 2026
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@flutter-dashboard flutter-dashboard Bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Oct 6, 2026
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flutteractionsbot deleted the revert-193307-1791272305 branch October 6, 2026 08:50
suryaKommana2662 pushed a commit to suryaKommana2662/flutter that referenced this pull request Oct 29, 2026
Reverts: [Updated Most flutter/flutter Defaults to
37](flutter#193307)

Initiated by: @jesswrd

Reason for reverting: broke the tree

Original PR Author: @jesswrd

Reviewed By: @mboetger

The original PR description is provided below:

In this step, we generally update the compileSdk version to 37, the
ndkVersion to a compatible version, and any test targets to API 37.

We did not bump ndkVersion because the current version is already
compatible here. There was also only one outstanding test target that
needed to be bumped to API 37.

Partially Addresses flutter#189518

## 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 in-code documentation (doc comments with
`///`).
- [x] If this PR introduces a new feature or capability, I created and
linked a website documentation issue or PR in [flutter/website] (or
verified none is needed).
- [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.
- [ ] 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
comment explaining why. The code freeze workflow can be overridden by
code reviewers. See pinned issues for any active code freezes with
guidance.

**Note**: The Flutter team is currently trialing the use of [Gemini Code
Assist for
GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code).
Comments from the `gemini-code-assist` bot should not be taken as
authoritative feedback from the Flutter team. If you find its comments
useful you can update your code accordingly, but if you are unsure or
disagree with the feedback, please feel free to wait for a Flutter team
member's review for guidance on which automated comments should be
addressed.

<!-- 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
[flutter/website]: https://github.com/flutter/website
[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
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