From 670a77527e8d16d9c6c56b13be06d73872e30cec Mon Sep 17 00:00:00 2001
From: Nick Cooke <nickcooke@google.com>
Date: Tue, 27 Oct 2026 19:24:20 -0400
Subject: [PATCH 1/2] fix(ci): add Xcode 27.1 to workflow matrices

---
 .github/workflows/abtesting.yml      |  5 ++++-
 .github/workflows/analytics.yml      |  5 ++++-
 .github/workflows/authentication.yml |  5 ++++-
 .github/workflows/config.yml         |  5 ++++-
 .github/workflows/crashlytics.yml    |  5 ++++-
 .github/workflows/database.yml       | 10 ++++++++--
 .github/workflows/firebaseai.yml     |  5 ++++-
 .github/workflows/firestore.yml      |  8 +++++---
 .github/workflows/functions.yml      |  5 ++++-
 .github/workflows/inappmessaging.yml |  5 ++++-
 .github/workflows/installations.yml  |  5 ++++-
 .github/workflows/messaging.yml      |  5 ++++-
 .github/workflows/performance.yml    | 10 ++++++++--
 .github/workflows/storage.yml        |  5 ++++-
 14 files changed, 65 insertions(+), 18 deletions(-)

diff --git a/.github/workflows/abtesting.yml b/.github/workflows/abtesting.yml
index 4b01f6870..18a292dd2 100644
--- a/.github/workflows/abtesting.yml
+++ b/.github/workflows/abtesting.yml
@@ -37,16 +37,19 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         os: [iOS, tvOS, macOS, watchOS, catalyst]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
           - os: iOS
             # Test runs locally but fails in CI with:
             # (Underlying Error: lstat of
diff --git a/.github/workflows/analytics.yml b/.github/workflows/analytics.yml
index cf1eeb00d..9303e220d 100644
--- a/.github/workflows/analytics.yml
+++ b/.github/workflows/analytics.yml
@@ -33,18 +33,21 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
         # TODO: Re-enable when ODM2 catalyst support is investigated
         # os: [iOS, catalyst, tvOS, macOS]
         os: [iOS, tvOS, macOS]
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
           - os: iOS
             test: true
           # TODO: Re-enable when ODM2 catalyst support is investigated
diff --git a/.github/workflows/authentication.yml b/.github/workflows/authentication.yml
index 84e2a79ab..5b354ec12 100644
--- a/.github/workflows/authentication.yml
+++ b/.github/workflows/authentication.yml
@@ -33,15 +33,18 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       OS: iOS
       SETUP: authentication
diff --git a/.github/workflows/config.yml b/.github/workflows/config.yml
index cdb3028b5..7e4f1396e 100644
--- a/.github/workflows/config.yml
+++ b/.github/workflows/config.yml
@@ -33,15 +33,18 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       OS: iOS
       DIR: config
diff --git a/.github/workflows/crashlytics.yml b/.github/workflows/crashlytics.yml
index 5fa9902d4..ea7b336ca 100644
--- a/.github/workflows/crashlytics.yml
+++ b/.github/workflows/crashlytics.yml
@@ -33,16 +33,19 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         os: [iOS, tvOS, macOS, watchOS]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
           - os: iOS
             test: false # flaky
           - os: tvOS
diff --git a/.github/workflows/database.yml b/.github/workflows/database.yml
index 95eb00272..6c3d40fdc 100644
--- a/.github/workflows/database.yml
+++ b/.github/workflows/database.yml
@@ -33,15 +33,18 @@ jobs:
   spm-buildonly:
     name: spm (Xcode ${{ matrix.xcode }} - non-SwiftUI)
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       OS: iOS
       SPM: true
@@ -68,16 +71,19 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         os: [iOS, tvOS, macOS]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
           - os: iOS
             test: false
           - os: tvOS
diff --git a/.github/workflows/firebaseai.yml b/.github/workflows/firebaseai.yml
index 0118dc46e..56737c759 100644
--- a/.github/workflows/firebaseai.yml
+++ b/.github/workflows/firebaseai.yml
@@ -24,15 +24,18 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       SETUP: firebaseai
       SPM: true
diff --git a/.github/workflows/firestore.yml b/.github/workflows/firestore.yml
index 13ed7aff3..d2f933a3a 100644
--- a/.github/workflows/firestore.yml
+++ b/.github/workflows/firestore.yml
@@ -33,18 +33,20 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
-    # TODO: Remove continue-on-error once firebase-ios-sdk 13.2.0 is released
+    # TODO: Remove 26.2 from continue-on-error once firebase-ios-sdk 13.2.0 is released
     # with the Xcode 26.2 package traits workaround (firebase/firebase-ios-sdk#16944).
-    continue-on-error: ${{ matrix.xcode == '26.2' }}
+    continue-on-error: ${{ matrix.xcode == '26.2' || matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       SPM: true
       OS: iOS
diff --git a/.github/workflows/functions.yml b/.github/workflows/functions.yml
index 5c894d3c1..8f0bf3cd2 100644
--- a/.github/workflows/functions.yml
+++ b/.github/workflows/functions.yml
@@ -33,16 +33,19 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         os: [iOS, tvOS, macOS]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       SETUP: functions
       SPM: true
diff --git a/.github/workflows/inappmessaging.yml b/.github/workflows/inappmessaging.yml
index 214414132..2e4a768be 100644
--- a/.github/workflows/inappmessaging.yml
+++ b/.github/workflows/inappmessaging.yml
@@ -33,15 +33,18 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       SPM: true
       DIR: inappmessaging
diff --git a/.github/workflows/installations.yml b/.github/workflows/installations.yml
index 6c713e9d4..74bf2634f 100644
--- a/.github/workflows/installations.yml
+++ b/.github/workflows/installations.yml
@@ -33,15 +33,18 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       SPM: true
       OS: iOS
diff --git a/.github/workflows/messaging.yml b/.github/workflows/messaging.yml
index 3cea449eb..0e629c2e4 100644
--- a/.github/workflows/messaging.yml
+++ b/.github/workflows/messaging.yml
@@ -33,15 +33,18 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       SPM: true
       OS: iOS
diff --git a/.github/workflows/performance.yml b/.github/workflows/performance.yml
index c83de0392..e94001936 100644
--- a/.github/workflows/performance.yml
+++ b/.github/workflows/performance.yml
@@ -33,15 +33,18 @@ jobs:
   spm-buildonly:
     name: spm (Xcode ${{ matrix.xcode }})
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       SPM: true
       OS: iOS
@@ -68,16 +71,19 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         os: [iOS, tvOS]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
           - os: iOS
             test: false
             scheme: PerformanceExample (iOS)
diff --git a/.github/workflows/storage.yml b/.github/workflows/storage.yml
index 13a46964a..5e5d1ec7e 100644
--- a/.github/workflows/storage.yml
+++ b/.github/workflows/storage.yml
@@ -33,16 +33,19 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
+    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
-        xcode: ["26.2", "26.4"]
+        xcode: ["26.2", "26.4", "27.1"]
         os: [iOS, tvOS, macOS]
         include:
           - xcode: "26.2"
             runner: macos-15
           - xcode: "26.4"
             runner: macos-26
+          - xcode: "27.1"
+            runner: xcode-27
     env:
       SETUP: storage
       SPM: true

From 73e2a058c11145716f8c294d01e0069c6e1ca0ac Mon Sep 17 00:00:00 2001
From: Nick Cooke <nickcooke@google.com>
Date: Wed, 28 Oct 2026 15:04:03 -0400
Subject: [PATCH 2/2] ci: enforce Xcode 27.1 workflow checks without
 continue-on-error

---
 .github/workflows/abtesting.yml      | 1 -
 .github/workflows/analytics.yml      | 1 -
 .github/workflows/authentication.yml | 1 -
 .github/workflows/config.yml         | 1 -
 .github/workflows/crashlytics.yml    | 1 -
 .github/workflows/database.yml       | 2 --
 .github/workflows/firebaseai.yml     | 1 -
 .github/workflows/firestore.yml      | 2 +-
 .github/workflows/functions.yml      | 1 -
 .github/workflows/inappmessaging.yml | 1 -
 .github/workflows/installations.yml  | 1 -
 .github/workflows/messaging.yml      | 1 -
 .github/workflows/performance.yml    | 2 --
 .github/workflows/storage.yml        | 1 -
 14 files changed, 1 insertion(+), 16 deletions(-)

diff --git a/.github/workflows/abtesting.yml b/.github/workflows/abtesting.yml
index 18a292dd2..3f9489211 100644
--- a/.github/workflows/abtesting.yml
+++ b/.github/workflows/abtesting.yml
@@ -37,7 +37,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/analytics.yml b/.github/workflows/analytics.yml
index 9303e220d..ef91efdcf 100644
--- a/.github/workflows/analytics.yml
+++ b/.github/workflows/analytics.yml
@@ -33,7 +33,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/authentication.yml b/.github/workflows/authentication.yml
index 5b354ec12..f09e1391e 100644
--- a/.github/workflows/authentication.yml
+++ b/.github/workflows/authentication.yml
@@ -33,7 +33,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/config.yml b/.github/workflows/config.yml
index 7e4f1396e..96f8c9a22 100644
--- a/.github/workflows/config.yml
+++ b/.github/workflows/config.yml
@@ -33,7 +33,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/crashlytics.yml b/.github/workflows/crashlytics.yml
index ea7b336ca..28f89a8ac 100644
--- a/.github/workflows/crashlytics.yml
+++ b/.github/workflows/crashlytics.yml
@@ -33,7 +33,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/database.yml b/.github/workflows/database.yml
index 6c3d40fdc..0424bc338 100644
--- a/.github/workflows/database.yml
+++ b/.github/workflows/database.yml
@@ -33,7 +33,6 @@ jobs:
   spm-buildonly:
     name: spm (Xcode ${{ matrix.xcode }} - non-SwiftUI)
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
@@ -71,7 +70,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/firebaseai.yml b/.github/workflows/firebaseai.yml
index 56737c759..1f6ae5e55 100644
--- a/.github/workflows/firebaseai.yml
+++ b/.github/workflows/firebaseai.yml
@@ -24,7 +24,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/firestore.yml b/.github/workflows/firestore.yml
index d2f933a3a..d23ba98ed 100644
--- a/.github/workflows/firestore.yml
+++ b/.github/workflows/firestore.yml
@@ -35,7 +35,7 @@ jobs:
     runs-on: ${{ matrix.runner }}
     # TODO: Remove 26.2 from continue-on-error once firebase-ios-sdk 13.2.0 is released
     # with the Xcode 26.2 package traits workaround (firebase/firebase-ios-sdk#16944).
-    continue-on-error: ${{ matrix.xcode == '26.2' || matrix.xcode == '27.1' }}
+    continue-on-error: ${{ matrix.xcode == '26.2' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/functions.yml b/.github/workflows/functions.yml
index 8f0bf3cd2..d3f170c29 100644
--- a/.github/workflows/functions.yml
+++ b/.github/workflows/functions.yml
@@ -33,7 +33,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/inappmessaging.yml b/.github/workflows/inappmessaging.yml
index 2e4a768be..3584da1d8 100644
--- a/.github/workflows/inappmessaging.yml
+++ b/.github/workflows/inappmessaging.yml
@@ -33,7 +33,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/installations.yml b/.github/workflows/installations.yml
index 74bf2634f..783ea5340 100644
--- a/.github/workflows/installations.yml
+++ b/.github/workflows/installations.yml
@@ -33,7 +33,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/messaging.yml b/.github/workflows/messaging.yml
index 0e629c2e4..738190d03 100644
--- a/.github/workflows/messaging.yml
+++ b/.github/workflows/messaging.yml
@@ -33,7 +33,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - iOS)
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/performance.yml b/.github/workflows/performance.yml
index e94001936..5402f8f95 100644
--- a/.github/workflows/performance.yml
+++ b/.github/workflows/performance.yml
@@ -33,7 +33,6 @@ jobs:
   spm-buildonly:
     name: spm (Xcode ${{ matrix.xcode }})
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
@@ -71,7 +70,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/storage.yml b/.github/workflows/storage.yml
index 5e5d1ec7e..9d169351d 100644
--- a/.github/workflows/storage.yml
+++ b/.github/workflows/storage.yml
@@ -33,7 +33,6 @@ jobs:
   spm:
     name: spm (Xcode ${{ matrix.xcode }} - ${{ matrix.os }})
     runs-on: ${{ matrix.runner }}
-    continue-on-error: ${{ matrix.xcode == '27.1' }}
     strategy:
       fail-fast: false
       matrix: