From 0ee453c3c318a2bb4ea80be051d34d06e85f7084 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 18 Jun 2026 00:50:39 +0000
Subject: [PATCH 1/3] Initial plan


From 0b5a03daa36737a6a423ac72d2e81982c336ee1a Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 18 Jun 2026 00:55:16 +0000
Subject: [PATCH 2/3] Add default timeoutInMinutes: 75 for windows_arm64 in
 platform-matrix.yml

Co-authored-by: JulieLeeMSFT <63486087+JulieLeeMSFT@users.noreply.github.com>
---
 eng/pipelines/common/platform-matrix.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/eng/pipelines/common/platform-matrix.yml b/eng/pipelines/common/platform-matrix.yml
index 9cd6d7e79a7592..89c95f73fba7da 100644
--- a/eng/pipelines/common/platform-matrix.yml
+++ b/eng/pipelines/common/platform-matrix.yml
@@ -949,4 +949,8 @@ jobs:
         runtimeFlavor: ${{ parameters.runtimeFlavor }}
         buildConfig: ${{ parameters.buildConfig }}
         helixQueueGroup: ${{ parameters.helixQueueGroup }}
+        # windows_arm64 agents are slower; give a larger default timeout,
+        # but only when the calling pipeline hasn't specified its own.
+        ${{ if eq(parameters.jobParameters.timeoutInMinutes, '') }}:
+          timeoutInMinutes: 75
         ${{ insert }}: ${{ parameters.jobParameters }}

From 4944888c6a004450688afb56489eaca92fe6a81f Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 19 Jun 2026 18:01:09 +0000
Subject: [PATCH 3/3] Move windows_arm64 timeout floor to global-build-job

Co-authored-by: JulieLeeMSFT <63486087+JulieLeeMSFT@users.noreply.github.com>
---
 eng/pipelines/common/global-build-job.yml | 12 +++++++++++-
 eng/pipelines/common/platform-matrix.yml  |  4 ----
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/eng/pipelines/common/global-build-job.yml b/eng/pipelines/common/global-build-job.yml
index 33dcc731daccac..c0e1a20daa934a 100644
--- a/eng/pipelines/common/global-build-job.yml
+++ b/eng/pipelines/common/global-build-job.yml
@@ -49,7 +49,17 @@ jobs:
     pool: ${{ parameters.pool }}
     container: ${{ parameters.container }}
     condition: and(succeeded(), ${{ parameters.condition }})
-    timeoutInMinutes: ${{ parameters.timeoutInMinutes }}
+    # Windows arm64 builds are slower than the 60 min ADO default,
+    # so enforce a floor of 75 minutes while still honoring any larger explicit value.
+    ${{ if eq(parameters.platform, 'windows_arm64') }}:
+      ${{ if eq(parameters.timeoutInMinutes, '') }}:
+        timeoutInMinutes: 75
+      ${{ elseif gt(parameters.timeoutInMinutes, 75) }}:
+        timeoutInMinutes: ${{ parameters.timeoutInMinutes }}
+      ${{ else }}:
+        timeoutInMinutes: 75
+    ${{ else }}:
+      timeoutInMinutes: ${{ parameters.timeoutInMinutes }}
     enablePublishTestResults: ${{ parameters.enablePublishTestResults }}
     testResultsFormat: ${{ parameters.testResultsFormat }}
     enableMicrobuild: ${{ parameters.isOfficialBuild }}
diff --git a/eng/pipelines/common/platform-matrix.yml b/eng/pipelines/common/platform-matrix.yml
index 89c95f73fba7da..9cd6d7e79a7592 100644
--- a/eng/pipelines/common/platform-matrix.yml
+++ b/eng/pipelines/common/platform-matrix.yml
@@ -949,8 +949,4 @@ jobs:
         runtimeFlavor: ${{ parameters.runtimeFlavor }}
         buildConfig: ${{ parameters.buildConfig }}
         helixQueueGroup: ${{ parameters.helixQueueGroup }}
-        # windows_arm64 agents are slower; give a larger default timeout,
-        # but only when the calling pipeline hasn't specified its own.
-        ${{ if eq(parameters.jobParameters.timeoutInMinutes, '') }}:
-          timeoutInMinutes: 75
         ${{ insert }}: ${{ parameters.jobParameters }}