Remove the --enable-serial-gc engine flag - #190310
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This flag was used to experiment with Dart GC performance. But it is not actively being used and is no longer functioning as intended in Dart. The flag was causing issues in recent Dart SDK rolls (see flutter#190266)
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The failures in flutter engine tests which caused a rollback last time this was rolled were fixed in flutter/flutter#190310 Changes: ``` > git log --format="%C(auto) %h %s" bd92e63..4838365 https://dart.googlesource.com/test.git/+/4838365e Avoid transitive imports to package:analyzer (2712) https://dart.googlesource.com/test.git/+/70ac3ff4 [test] Support CLI compiler for sanitizer runtimes (2708) https://dart.googlesource.com/test.git/+/bdc37221 Avoid read-all permissions in dart.yml CI action (2713) https://dart.googlesource.com/test.git/+/a9a44427 Annotate async expectations with awaitNotRequired (2700) https://dart.googlesource.com/test.git/+/5fcd6f40 Remove unnecessary remote debugging flag (2705) https://dart.googlesource.com/test.git/+/72d6dfcc Launch browsers with redirecting files (2703) https://dart.googlesource.com/test.git/+/8ab38846 Disable more backgrounding features on chromium (2680) https://dart.googlesource.com/test.git/+/d835f706 Only print debug URL when debugging (2702) https://dart.googlesource.com/test.git/+/9abe202a Ignore dart2js output for successful compiles (2701) https://dart.googlesource.com/test.git/+/ce557ba1 Group messages with passing tests (2699) https://dart.googlesource.com/test.git/+/d79747cd Make workflow files more secure (2698) https://dart.googlesource.com/test.git/+/91ca13f0 Support DART_TEST_REPORTER environment variable (2692) https://dart.googlesource.com/test.git/+/dcb06ac7 Bump the github-actions group with 3 updates (2689) ``` Diff: https://dart.googlesource.com/test.git/+/bd92e633e7f05edc3301865bdc00d1ae181cb1f1..4838365e7fb3a2d0302cdbbd8330b7884f7d3c0d/ Change-Id: I19bf36546a3d85951185d70a859c24b5606e3d67 Tested: Package roll Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/530060 Auto-Submit: Nate Bosch <nbosch@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com>
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…12401) Manual roll Flutter from 2757a77a73df to e52f01c920ad (47 revisions) Manual roll requested by stuartmorgan@google.com flutter/flutter@2757a77...e52f01c 2026-07-31 jason-simmons@users.noreply.github.com [Impeller] Execute PipelineCompileQueue jobs in the order that they were added (flutter/flutter#190262) 2026-07-31 engine-flutter-autoroll@skia.org Roll Packages from 7d17fc8 to 5351d8c (5 revisions) (flutter/flutter#190351) 2026-07-31 engine-flutter-autoroll@skia.org Roll Skia from dcbd015c9646 to 7ef86a5b0eb9 (4 revisions) (flutter/flutter#190347) 2026-07-31 jason-simmons@users.noreply.github.com [Impeller] Do not acquire an unneeded image in KHRSwapchainVK if the swapchain must be recreated due to a size change (flutter/flutter#190116) 2026-07-31 jason-simmons@users.noreply.github.com Remove the --enable-serial-gc engine flag (flutter/flutter#190310) 2026-07-31 36861262+QuncCccccc@users.noreply.github.com Migrate platform_channel_swift example to material_ui (flutter/flutter#190308) 2026-07-31 chris@bracken.jp macOS: Set static text accessibility role for read-only text fields (flutter/flutter#190330) 2026-07-31 engine-flutter-autoroll@skia.org Roll Dart SDK from 96f49fc43f59 to c3acfc2479f6 (1 revision) (flutter/flutter#190336) 2026-07-31 engine-flutter-autoroll@skia.org Roll Skia from 07f08414dd66 to dcbd015c9646 (1 revision) (flutter/flutter#190333) 2026-07-31 zhongliu88889@gmail.com [web] Autofill all AutofillGroup fields in semantics mode (flutter/flutter#187108) 2026-07-31 chris@bracken.jp iOS: Configure test task runner thread at display QoS (flutter/flutter#190283) 2026-07-31 engine-flutter-autoroll@skia.org Roll Skia from a1109355de78 to 07f08414dd66 (5 revisions) (flutter/flutter#190328) 2026-07-31 chris@bracken.jp Support reduceMotion accessibility feature in MediaQuery (flutter/flutter#190287) 2026-07-30 engine-flutter-autoroll@skia.org Roll Dart SDK from 43f7de5f4977 to 96f49fc43f59 (4 revisions) (flutter/flutter#190312) 2026-07-30 mu7ammadkamel@hotmail.com fix: text selection two handles directionality. (flutter/flutter#179928) 2026-07-30 matt.boetger@gmail.com Add java/gradle check when gradle crashes (flutter/flutter#189997) 2026-07-30 41765610+ahyangnb@users.noreply.github.com [Impeller] Add filterQuality support to ImageFilter.shader (flutter/flutter#188544) 2026-07-30 dkwingsmt@users.noreply.github.com [flutter/flutter] Migrate multiple_windows example to material_ui (flutter/flutter#190313) 2026-07-30 engine-flutter-autoroll@skia.org Roll Skia from 50cf67910462 to a1109355de78 (6 revisions) (flutter/flutter#190306) 2026-07-30 31859944+LongCatIsLooong@users.noreply.github.com Migrate swift xctests to Swift testing tests (flutter/flutter#187801) 2026-07-30 36861262+QuncCccccc@users.noreply.github.com Migrates the platform_channel example to material_ui (flutter/flutter#190253) 2026-07-30 chris@bracken.jp iOS: Drop unnecessary @mainactor from VSyncClientTests (flutter/flutter#190285) 2026-07-30 evanwall@buffalo.edu Add nullptr check to isOpaque (flutter/flutter#189796) 2026-07-30 bdero@google.com [Flutter GPU] Bind uniforms and textures by cached reflection index (flutter/flutter#189820) 2026-07-30 jmccandless@google.com Migrate layers example to material_ui (flutter/flutter#190237) 2026-07-30 bernaferrari2@gmail.com Add `ShapeBorder` hit test fast paths (flutter/flutter#187962) 2026-07-30 codefu@google.com ci: mac-must-wait part duex (flutter/flutter#190295) 2026-07-30 engine-flutter-autoroll@skia.org Roll Skia from 491301f393d1 to 50cf67910462 (3 revisions) (flutter/flutter#190294) 2026-07-30 engine-flutter-autoroll@skia.org Roll Packages from dd11626 to 7d17fc8 (1 revision) (flutter/flutter#190293) 2026-07-30 engine-flutter-autoroll@skia.org Roll Skia from 177de1940bf2 to 491301f393d1 (1 revision) (flutter/flutter#190279) 2026-07-30 engine-flutter-autoroll@skia.org Roll Skia from b8bda91f02db to 177de1940bf2 (5 revisions) (flutter/flutter#190272) 2026-07-30 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from J8rVTlBnjnUpuHYk3... to _J8wM3kyQpLN9wvRD... (flutter/flutter#190273) 2026-07-30 engine-flutter-autoroll@skia.org Roll Skia from 78afc18c9ba0 to b8bda91f02db (3 revisions) (flutter/flutter#190268) 2026-07-30 154381524+flutteractionsbot@users.noreply.github.com Revert: Split the platform and cpuArch part of TargetPlatform (flutter/flutter#190258) 2026-07-30 developeryusuf@icloud.com Return null from RenderProxyBoxMixin.computeDryBaseline when the child has no baseline (flutter/flutter#189723) 2026-07-30 engine-flutter-autoroll@skia.org Roll Skia from 6fea713d32ec to 78afc18c9ba0 (4 revisions) (flutter/flutter#190257) 2026-07-30 137456488+flutter-pub-roller-bot@users.noreply.github.com Roll pub packages (flutter/flutter#190259) 2026-07-29 brackenavaron@gmail.com [cross imports] Check examples cross imports (flutter/flutter#187662) 2026-07-29 codefu@google.com ci: mac verify binaries still has to wait on linux_host_engine (flutter/flutter#190239) 2026-07-29 30870216+gaaclarke@users.noreply.github.com Adds analytics to macos impeller opt in/out (flutter/flutter#190220) 2026-07-29 engine-flutter-autoroll@skia.org Roll Skia from 0f35bba4945c to 6fea713d32ec (6 revisions) (flutter/flutter#190230) 2026-07-29 chris@bracken.jp iOS: Fix Swift warning in TracingTests (flutter/flutter#190203) 2026-07-29 matt.boetger@gmail.com Convert all gradle-wrapper.properties in /dev to use distribution 'bin' (flutter/flutter#190226) 2026-07-29 engine-flutter-autoroll@skia.org Roll Packages from 3e63635 to dd11626 (11 revisions) (flutter/flutter#190216) ...
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This flag was used to experiment with Dart GC performance. But it is not actively being used and is no longer functioning as intended in Dart.
The flag was causing issues in recent Dart SDK rolls (see #190266)