flutter/dev
Chris Bracken 09d4dabd6d
iOS: Update minimum iOS version to 13.0 (#167737)
This updates the Flutter minimum iOS version from 12.0 to 13.0, adds a
migrator for existing apps, and updates our own examples, tests, and
benchmark apps to 13.0. A follow-up patch will drop iOS 13 `@available`
checks in the embedder.

This is required in order to use Swift in the embedder and not need to
bundle the Swift runtime libs in every app that uses Flutter. Swift
stable ABI

As of March 2025, usage of iOS is well below 1%, see example public
usage data here:
https://telemetrydeck.com/survey/apple/iOS/majorSystemVersions/

This patch makes the following changes:
1. Updates ios_deployment_target from 12.0 to 13.0.
2. Changes templates to `IPHONEOS_DEPLOYMENT_TARGET`,
`MinimumOSVersion`, and Podfile `platform :ios` to 12.0.
3. Adds migrator for Podfile part to migrate `platform :ios, '11.0'` ->
`platform :ios, '12.0'`
4. Compiles with `-miphoneos-version-min=12.0`
5. Runs the migrator on all example apps and integration tests.
6. Updates examples, tests to iOS 13 deployment target

It also updates `verify_exported.dart`:
* iOS 13 introduces stricter separation of const and non-const global
symbols. Previously, these were declared in the Mach-O `__DATA` section
which may be mapped read-write, but now they're in a dedicated
`__DATA_CONST` section which is mapped read-only. This adds
`(__DATA_CONST,__const)` to the allowlist with the same enforcement on
exported symbol naming as before.

See also (ios_deployment_target):
* https://github.com/flutter/buildroot/pull/808
* https://github.com/flutter/buildroot/pull/574

See also (template, migrator):
* https://github.com/flutter/flutter/pull/62902
* https://github.com/flutter/flutter/pull/85174
* https://github.com/flutter/flutter/pull/101963
* https://github.com/flutter/flutter/pull/140478

Issue: https://github.com/flutter/flutter/issues/167735

## Pre-launch Checklist

- [X] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [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].

<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[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
2025-04-24 20:15:13 +00:00
..
a11y_assessments iOS: Update minimum iOS version to 13.0 (#167737) 2025-04-24 20:15:13 +00:00
automated_tests Roll pub packages (#167680) 2025-04-23 21:18:16 +00:00
benchmarks iOS: Update minimum iOS version to 13.0 (#167737) 2025-04-24 20:15:13 +00:00
bots Roll pub packages (#167680) 2025-04-23 21:18:16 +00:00
conductor Roll pub packages (#167680) 2025-04-23 21:18:16 +00:00
customer_testing Wire up MenuAnchor, MenuBar, MenuItem-related widgets to aria roles (#165596) 2025-04-24 16:48:20 +00:00
devicelab iOS: Update minimum iOS version to 13.0 (#167737) 2025-04-24 20:15:13 +00:00
docs Bump Dart SDK to 3.7 (#159812) 2024-12-05 21:39:53 +00:00
forbidden_from_release_tests Roll pub packages (#165932) 2025-03-27 04:27:26 +00:00
integration_tests iOS: Update minimum iOS version to 13.0 (#167737) 2025-04-24 20:15:13 +00:00
manual_tests iOS: Update minimum iOS version to 13.0 (#167737) 2025-04-24 20:15:13 +00:00
missing_dependency_tests Bump Dart SDK to 3.7 (#159812) 2024-12-05 21:39:53 +00:00
snippets Roll pub packages (#167680) 2025-04-23 21:18:16 +00:00
tools Roll pub packages (#167680) 2025-04-23 21:18:16 +00:00
tracing_tests Increase pinned version of leak tracker to enable access to experimental tracking on web. (#167502) 2025-04-21 23:48:15 +00:00
analysis_options.yaml Enable more lints (#91642) 2021-10-14 22:03:03 -07:00
README.md

This directory contains tools and resources that the Flutter team uses during the development of the framework. The tools in this directory should not be necessary for developing Flutter applications, though of course, they may be interesting if you are curious.

The tests in this directory are run in the framework_tests_misc-* shards.