diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index fb1eed5a61..58663bf2e6 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -13,7 +13,7 @@ on:
 env:
   CCACHE_DIR: ${{ github.workspace }}/ccache_dir
   GITHUB_TOKEN: ${{ github.token }}
-  xcodeVersion: "26.2"  # Only affects Mac runners, and only for prerequisites.
+  xcodeVersion: "26.4"  # Only affects Mac runners, and only for prerequisites.
 
 permissions:
   contents: read
@@ -61,7 +61,7 @@ jobs:
         - os: ubuntu-22.04
           architecture: arm64
         # Do not attempt to use x64 on Mac.
-        - os: macos-15
+        - os: macos-26
           architecture: x64
     steps:
       - uses: lukka/get-cmake@591817e96fcad43505fb4eae36172462abb3a42e # ratchet:lukka/get-cmake@latest
@@ -123,26 +123,26 @@ jobs:
         id: cache_ndk
         uses: actions/cache@6f8efc29b200d32929f49075959781ed54ec270c # ratchet:actions/cache@v3
         with:
-          path: /tmp/android-ndk-r21e
-          key: android-ndk-${{ matrix.os }}-r21e
+          path: /tmp/android-ndk-r23b
+          key: android-ndk-${{ matrix.os }}-r23b
 
       - name: Check cached NDK
         shell: bash
         if: steps.cache_ndk.outputs.cache-hit != 'true'
         run: |
           # If the NDK failed to download from the cache, but there is a
-          # /tmp/android-ndk-r21e directory, it's incomplete, so remove it.
-          if [[ -d "/tmp/android-ndk-r21e" ]]; then
+          # /tmp/android-ndk-r23b directory, it's incomplete, so remove it.
+          if [[ -d "/tmp/android-ndk-r23b" ]]; then
             echo "Removing incomplete download of NDK"
-            rm -rf /tmp/android-ndk-r21e
+            rm -rf /tmp/android-ndk-r23b
           fi
 
       - name: Install prerequisites
         shell: bash
         run: |
           build_scripts/android/install_prereqs.sh
-          echo "NDK_ROOT=/tmp/android-ndk-r21e" >> $GITHUB_ENV
-          echo "ANDROID_NDK_HOME=/tmp/android-ndk-r21e" >> $GITHUB_ENV
+          echo "NDK_ROOT=/tmp/android-ndk-r23b" >> $GITHUB_ENV
+          echo "ANDROID_NDK_HOME=/tmp/android-ndk-r23b" >> $GITHUB_ENV
 
       - name: Add strings.exe to PATH (Windows only)
         if: startsWith(matrix.os, 'windows')
diff --git a/.github/workflows/cpp-packaging.yml b/.github/workflows/cpp-packaging.yml
index 6ba23cd98b..ece1df8a6b 100644
--- a/.github/workflows/cpp-packaging.yml
+++ b/.github/workflows/cpp-packaging.yml
@@ -32,9 +32,9 @@ env:
   demumbleVer: "df938e45c2b0e064fb5323d88b692d03b451d271"
   # Use SHA256 for hashing files.
   hashCommand: "sha256sum"
-  # Xcode version 26.2 is the version we build the SDK with.
+  # Xcode version 26.4 is the version we build the SDK with.
   # Our MacOS runners will use the version in /Applications/Xcode_${xcodeVersion}.app
-  xcodeVersion: "26.2"
+  xcodeVersion: "26.4"
   # LLVM version with ARM MachO support has no version number yet.
   llvmVer: "5f187f0afaad33013ba03454c4749d99b1362534"
   GITHUB_TOKEN: ${{ github.token }}
@@ -85,13 +85,13 @@ jobs:
     if: ${{ github.event.inputs.downloadPublicVersion == '' && github.event.inputs.downloadPreviousRun == '' }}
     strategy:
       matrix:
-        os: [ubuntu-22.04, macos-15]
+        os: [ubuntu-22.04, macos-26]
         include:
         - os: ubuntu-22.04
           tools_platform: linux
           # Binutils 2.35.1 released Sep 19, 2020
           binutils_version: "2.35.1"
-        - os: macos-15
+        - os: macos-26
           tools_platform: darwin
           # Binutils 2.35.1 released Sep 19, 2020
           binutils_version: "2.35.1"
@@ -211,7 +211,7 @@ jobs:
 
   build_and_package_ios_tvos:
     name: build-and-package-ios-tvos
-    runs-on: macos-15
+    runs-on: macos-26
     if: ${{ github.event.inputs.downloadPublicVersion == '' && github.event.inputs.downloadPreviousRun == '' }}
     steps:
       - uses: lukka/get-cmake@591817e96fcad43505fb4eae36172462abb3a42e # ratchet:lukka/get-cmake@latest
@@ -301,8 +301,8 @@ jobs:
         id: cache_ndk
         uses: actions/cache@6f8efc29b200d32929f49075959781ed54ec270c # ratchet:actions/cache@v3
         with:
-          path: /tmp/android-ndk-r21e
-          key: android-ndk-${{ runner.os }}-r21e
+          path: /tmp/android-ndk-r23b
+          key: android-ndk-${{ runner.os }}-r23b
 
       - name: install prerequisites
         run: sdk-src/build_scripts/android/install_prereqs.sh
@@ -342,7 +342,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-2022, ubuntu-22.04, macos-15]
+        os: [windows-2022, ubuntu-22.04, macos-26]
         build_type: ["Release", "Debug"]
         architecture: ["x64", "x86", "arm64"]
         msvc_runtime: ["static", "dynamic"]
@@ -360,7 +360,7 @@ jobs:
           vcpkg_triplet_suffix: "linux"
           additional_build_flags: ""
           sdk_platform: "linux"
-        - os: macos-15
+        - os: macos-26
           vcpkg_triplet_suffix: "osx"
           additional_build_flags: "--target_format libraries"
           sdk_platform: "darwin"
@@ -368,13 +368,13 @@ jobs:
         exclude:
         - os: windows-2022
           linux_abi: "c++11"
-        - os: macos-15
+        - os: macos-26
           architecture: "x86"
-        - os: macos-15
+        - os: macos-26
           msvc_runtime: "dynamic"
-        - os: macos-15
+        - os: macos-26
           linux_abi: "c++11"
-        - os: macos-15
+        - os: macos-26
           build_type: "Debug"
         - os: ubuntu-22.04
           msvc_runtime: "dynamic"
@@ -532,7 +532,7 @@ jobs:
           suffix: '-x64-Debug-dynamic'
           runs_on_platform: ubuntu-22.04
         - sdk_platform: darwin
-          runs_on_platform: macos-15
+          runs_on_platform: macos-26
         exclude:
         - sdk_platform: windows
           suffix: ''
diff --git a/.github/workflows/desktop.yml b/.github/workflows/desktop.yml
index e401618145..05f33c28a6 100644
--- a/.github/workflows/desktop.yml
+++ b/.github/workflows/desktop.yml
@@ -76,12 +76,12 @@ jobs:
           # msvc_runtime excludes
           - os: ubuntu-22.04
             msvc_runtime: "dynamic"
-          - os: macos-15
+          - os: macos-26
             msvc_runtime: "dynamic"
           # architecture excluees
-          - os: macos-15
+          - os: macos-26
             architecture: "x86"
-          - os: macos-15
+          - os: macos-26
             architecture: "x64"
           # Xcode excludes -- allow only one on osx and linux
           - os: ubuntu-22.04
diff --git a/.github/workflows/integration_tests.yml b/.github/workflows/integration_tests.yml
index 1ed4bb1b98..c44ff23e4a 100644
--- a/.github/workflows/integration_tests.yml
+++ b/.github/workflows/integration_tests.yml
@@ -21,7 +21,7 @@ on:
         required: true
       operating_systems:
         description: 'CSV of VMs to run on'
-        default: 'ubuntu-22.04,windows-2022,macos-15'
+        default: 'ubuntu-22.04,windows-2022,macos-26'
         required: true
       desktop_ssl_variants:
         description: 'CSV of desktop SSL variants to use'
@@ -50,7 +50,7 @@ env:
   triggerLabelFull: "tests-requested: full"
   triggerLabelQuick: "tests-requested: quick"
   pythonVersion: '3.9'
-  xcodeVersion: '26.2'
+  xcodeVersion: '26.4'
   logArtifactRetentionDays: 90
   binaryArtifactRetentionDays: 7
   GITHUB_TOKEN: ${{ github.token }}
@@ -219,7 +219,7 @@ jobs:
           # at 3am PST/4am PDT. Running firestore desktop integration test aginst tip-of-tree ios repo
           echo "::warning ::Running against Firestore tip-of-tree"
           matrix_platform="Desktop"
-          matrix_os=$( python scripts/gha/print_matrix_configuration.py -w integration_tests ${TEST_MATRIX_PARAM} -k os -o "ubuntu-22.04,macos-15")
+          matrix_os=$( python scripts/gha/print_matrix_configuration.py -w integration_tests ${TEST_MATRIX_PARAM} -k os -o "ubuntu-22.04,macos-26")
         else
           matrix_platform=$( python scripts/gha/print_matrix_configuration.py -w integration_tests ${TEST_MATRIX_PARAM} -k platform -o "${GITHUB_EVENT_INPUTS_PLATFORMS}" --apis ${apis} )
           matrix_os=$( python scripts/gha/print_matrix_configuration.py -w integration_tests ${TEST_MATRIX_PARAM} -k os -o "${GITHUB_EVENT_INPUTS_OPERATING_SYSTEMS}")
@@ -292,7 +292,7 @@ jobs:
         - os: ubuntu-22.04
           arch: arm64
         # Do not attempt to use x86 on Mac.
-        - os: macos-15
+        - os: macos-26
           arch: x86
         # Until we support building openssl from source, we can't use the
         # system's openssl when cross-compiling, except on Linux. Builds on Linux
@@ -301,7 +301,7 @@ jobs:
         - os: windows-2022
           ssl_variant: openssl
           arch: x86
-        - os: macos-15
+        - os: macos-26
           ssl_variant: openssl
           arch: x64
     steps:
@@ -511,8 +511,8 @@ jobs:
         id: cache_ndk
         uses: actions/cache@6f8efc29b200d32929f49075959781ed54ec270c # ratchet:actions/cache@v3
         with:
-          path: /tmp/android-ndk-r21e
-          key: android-ndk-${{ matrix.os }}-r21e
+          path: /tmp/android-ndk-r23b
+          key: android-ndk-${{ matrix.os }}-r23b
       - name: Setup python
         uses: actions/setup-python@7f4fc3e22c37d6ff65e88745f38bd3157c663f7c # ratchet:actions/setup-python@v4
         with:
@@ -622,7 +622,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-15]
+        os: [macos-26]
     steps:
       - uses: lukka/get-cmake@591817e96fcad43505fb4eae36172462abb3a42e # ratchet:lukka/get-cmake@latest
         with:
@@ -745,7 +745,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-15]
+        os: [macos-26]
     steps:
       - uses: lukka/get-cmake@591817e96fcad43505fb4eae36172462abb3a42e # ratchet:lukka/get-cmake@latest
         with:
@@ -878,7 +878,7 @@ jobs:
         - os: ubuntu-22.04
           arch: arm64
         # Do not attempt to use x86 on Mac.
-        - os: macos-15
+        - os: macos-26
           arch: x86
         # Until we support building openssl from source, we can't use the
         # system's openssl when cross-compiling, except on Linux. Builds on Linux
@@ -887,7 +887,7 @@ jobs:
         - os: windows-2022
           ssl_variant: openssl
           arch: x86
-        - os: macos-15
+        - os: macos-26
           ssl_variant: openssl
           arch: x64
     steps:
@@ -1152,7 +1152,7 @@ jobs:
   test_ios:
     name: test-ios-${{ matrix.build_os }}-${{ matrix.ios_device }}-${{ matrix.test_type }}
     needs: [check_and_prepare, build_ios]
-    runs-on: macos-15
+    runs-on: macos-26
     permissions:
       contents: read
       pull-requests: write
@@ -1166,7 +1166,7 @@ jobs:
         exclude:
           -  ios_device: "ios_target"
              test_type: "uitest"
-        build_os: [macos-15]
+        build_os: [macos-26]
     steps:
       - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # ratchet:actions/checkout@v3
         with:
@@ -1342,7 +1342,7 @@ jobs:
   test_tvos:
     name: test-tvos-${{ matrix.build_os }}-${{ matrix.tvos_device }}
     needs: [check_and_prepare, build_tvos]
-    runs-on: macos-15
+    runs-on: macos-26
     permissions:
       contents: read
       pull-requests: write
@@ -1352,7 +1352,7 @@ jobs:
       matrix:
 
         tvos_device: ${{ fromJson(needs.check_and_prepare.outputs.tvos_device) }}
-        build_os: [macos-15]
+        build_os: [macos-26]
     steps:
       - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # ratchet:actions/checkout@v3
         with:
diff --git a/.github/workflows/ios.yml b/.github/workflows/ios.yml
index e6fbcd0cda..f27b79639d 100644
--- a/.github/workflows/ios.yml
+++ b/.github/workflows/ios.yml
@@ -45,7 +45,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ 'macos-15' ]
+        os: [ 'macos-26' ]
         xcode_version: ${{ fromJson(needs.prepare_matrix.outputs.matrix_xcode_version) }}
     steps:
       - uses: lukka/get-cmake@591817e96fcad43505fb4eae36172462abb3a42e # ratchet:lukka/get-cmake@latest
diff --git a/.github/workflows/update-dependencies.yml b/.github/workflows/update-dependencies.yml
index c73f244149..541f4fc240 100644
--- a/.github/workflows/update-dependencies.yml
+++ b/.github/workflows/update-dependencies.yml
@@ -27,7 +27,7 @@ env:
 jobs:
   update_dependencies:
     name: update-deps
-    runs-on: macos-15
+    runs-on: macos-26
     steps:
       - name: Get token for firebase-workflow-trigger
         uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # ratchet:actions/create-github-app-token@v1
diff --git a/Android/firebase_dependencies.gradle b/Android/firebase_dependencies.gradle
index b86bb8269b..9bf07029e5 100644
--- a/Android/firebase_dependencies.gradle
+++ b/Android/firebase_dependencies.gradle
@@ -20,7 +20,7 @@ def firebaseDependenciesMap = [
   'app_check' : ['com.google.firebase:firebase-appcheck',
                  'com.google.firebase:firebase-appcheck-debug',
                  'com.google.firebase:firebase-appcheck-playintegrity'],
-  'play_services' : ['com.google.android.gms:play-services-base:18.10.1'],
+  'play_services' : ['com.google.android.gms:play-services-base:18.11.0'],
   'analytics' : ['com.google.firebase:firebase-analytics'],
   'auth' : ['com.google.firebase:firebase-auth'],
   'database' : ['com.google.firebase:firebase-database'],
@@ -148,7 +148,7 @@ project.afterEvaluate {
 
     // Add the bill-of-materials
     project.dependencies {
-      implementation platform('com.google.firebase:firebase-bom:34.19.0')
+      implementation platform('com.google.firebase:firebase-bom:35.0.0')
     }
     for (String lib : firebaseCpp.dependencies.libSet) {
       // Generate and include the proguard file
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7cd1a549a2..04cbc87224 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,7 +16,7 @@
 
 cmake_minimum_required(VERSION 3.22)
 
-set (CMAKE_CXX_STANDARD 14)
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Turn on virtual folders for visual studio
diff --git a/analytics/integration_test/CMakeLists.txt b/analytics/integration_test/CMakeLists.txt
index 953008a226..56f307342b 100644
--- a/analytics/integration_test/CMakeLists.txt
+++ b/analytics/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/analytics/integration_test/integration_test.xcodeproj/project.pbxproj b/analytics/integration_test/integration_test.xcodeproj/project.pbxproj
index 8ad1bfcbd7..1cf66dc9c0 100644
--- a/analytics/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/analytics/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -336,7 +336,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -379,7 +379,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -482,7 +482,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -536,7 +536,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -588,7 +588,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/app/app_resources/build.gradle b/app/app_resources/build.gradle
index 34d40c1551..e4a0589521 100644
--- a/app/app_resources/build.gradle
+++ b/app/app_resources/build.gradle
@@ -56,7 +56,7 @@ android {
 }
 
 dependencies {
-  implementation platform('com.google.firebase:firebase-bom:34.19.0')
+  implementation platform('com.google.firebase:firebase-bom:35.0.0')
   implementation 'com.google.firebase:firebase-analytics'
 }
 
diff --git a/app/google_api_resources/build.gradle b/app/google_api_resources/build.gradle
index 36f89695da..f0bd0ee378 100644
--- a/app/google_api_resources/build.gradle
+++ b/app/google_api_resources/build.gradle
@@ -59,9 +59,9 @@ android {
 }
 
 dependencies {
-  implementation platform('com.google.firebase:firebase-bom:34.19.0')
+  implementation platform('com.google.firebase:firebase-bom:35.0.0')
   implementation 'com.google.firebase:firebase-analytics'
-  implementation 'com.google.android.gms:play-services-base:18.10.1'
+  implementation 'com.google.android.gms:play-services-base:18.11.0'
   implementation project(':app:app_resources')
 }
 
diff --git a/app/integration_test/CMakeLists.txt b/app/integration_test/CMakeLists.txt
index fd0b0f8de5..354c1a0265 100644
--- a/app/integration_test/CMakeLists.txt
+++ b/app/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/app/integration_test/integration_test.xcodeproj/project.pbxproj b/app/integration_test/integration_test.xcodeproj/project.pbxproj
index 4b0446a3fc..475f04d854 100644
--- a/app/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/app/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -220,7 +220,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -263,7 +263,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -367,7 +367,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/app/rest/CMakeLists.txt b/app/rest/CMakeLists.txt
index 547e5ced41..2d806ad231 100644
--- a/app/rest/CMakeLists.txt
+++ b/app/rest/CMakeLists.txt
@@ -15,8 +15,8 @@
 # CMake file for the firebase_rest_lib library
 
 cmake_minimum_required(VERSION 3.22)
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 project(firebase_rest_lib NONE)
diff --git a/app_check/app_check_resources/build.gradle b/app_check/app_check_resources/build.gradle
index 910822d19b..dc340e509f 100644
--- a/app_check/app_check_resources/build.gradle
+++ b/app_check/app_check_resources/build.gradle
@@ -55,7 +55,7 @@ android {
 }
 
 dependencies {
-  implementation platform('com.google.firebase:firebase-bom:34.19.0')
+  implementation platform('com.google.firebase:firebase-bom:35.0.0')
   implementation 'com.google.firebase:firebase-appcheck'
 }
 
diff --git a/app_check/integration_test/CMakeLists.txt b/app_check/integration_test/CMakeLists.txt
index 55dbb37941..1cb3b774da 100644
--- a/app_check/integration_test/CMakeLists.txt
+++ b/app_check/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/app_check/integration_test/integration_test.xcodeproj/project.pbxproj b/app_check/integration_test/integration_test.xcodeproj/project.pbxproj
index 87bc70fb76..f87fb16d53 100644
--- a/app_check/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/app_check/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -362,7 +362,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -405,7 +405,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -510,7 +510,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -564,7 +564,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -616,7 +616,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/auth/auth_resources/build.gradle b/auth/auth_resources/build.gradle
index b389951071..649008c7e1 100644
--- a/auth/auth_resources/build.gradle
+++ b/auth/auth_resources/build.gradle
@@ -55,7 +55,7 @@ android {
 }
 
 dependencies {
-  implementation platform('com.google.firebase:firebase-bom:34.19.0')
+  implementation platform('com.google.firebase:firebase-bom:35.0.0')
   implementation 'com.google.firebase:firebase-analytics'
   implementation 'com.google.firebase:firebase-auth'
   implementation project(':app:app_resources')
diff --git a/auth/integration_test/CMakeLists.txt b/auth/integration_test/CMakeLists.txt
index 164f89ce46..d50c20c2c0 100644
--- a/auth/integration_test/CMakeLists.txt
+++ b/auth/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/auth/integration_test/integration_test.xcodeproj/project.pbxproj b/auth/integration_test/integration_test.xcodeproj/project.pbxproj
index cd62b569a6..24ba703147 100644
--- a/auth/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/auth/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -363,7 +363,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -406,7 +406,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -511,7 +511,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -565,7 +565,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -617,7 +617,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/build_scripts/android/build.sh b/build_scripts/android/build.sh
index e2809a6a55..328fc20761 100755
--- a/build_scripts/android/build.sh
+++ b/build_scripts/android/build.sh
@@ -27,15 +27,15 @@ absbuildpath=$( pwd -P )
 cd "${origpath}"
 
 # If NDK_ROOT is not set or is the wrong version, use to the version in /tmp.
-if [[ -z "${NDK_ROOT}" || -z $(grep "Pkg\.Revision = 21\." "${NDK_ROOT}/source.properties") ]]; then
-    if [[ ! -d /tmp/android-ndk-r21e ]]; then
-        echo "Recommended NDK version r21e not present in /tmp."
+if [[ -z "${NDK_ROOT}" || -z $(grep "Pkg\.Revision = 23\." "${NDK_ROOT}/source.properties") ]]; then
+    if [[ ! -d /tmp/android-ndk-r23b ]]; then
+        echo "Recommended NDK version r23b not present in /tmp."
         echo "Please run install_prereqs.sh if you wish to use the recommended NDK version."
         echo "Continuing with default NDK..."
         sleep 2
     fi
-    export NDK_ROOT=/tmp/android-ndk-r21e
-    export ANDROID_NDK_HOME=/tmp/android-ndk-r21e
+    export NDK_ROOT=/tmp/android-ndk-r23b
+    export ANDROID_NDK_HOME=/tmp/android-ndk-r23b
 fi
 cd "${sourcepath}"
 set +e
diff --git a/build_scripts/android/install_prereqs.sh b/build_scripts/android/install_prereqs.sh
index 02b16a1b83..fe8a36da19 100755
--- a/build_scripts/android/install_prereqs.sh
+++ b/build_scripts/android/install_prereqs.sh
@@ -61,13 +61,13 @@ if [[ -z "${ANDROID_HOME}" ]]; then
     exit 1
 fi
 
-if [[ -z "${NDK_ROOT}" || -z $(grep "Pkg\.Revision = 21\." "${NDK_ROOT}/source.properties") ]]; then
-    if [[ -d /tmp/android-ndk-r21e && \
-              -n $(grep "Pkg\.Revision = 21\." "/tmp/android-ndk-r21e/source.properties") ]]; then
-            echo "Using NDK r21e in /tmp/android-ndk-r21e".
+if [[ -z "${NDK_ROOT}" || -z $(grep "Pkg\.Revision = 23\." "${NDK_ROOT}/source.properties") ]]; then
+    if [[ -d /tmp/android-ndk-r23b && \
+              -n $(grep "Pkg\.Revision = 23\." "/tmp/android-ndk-r23b/source.properties") ]]; then
+            echo "Using NDK r23b in /tmp/android-ndk-r23b".
     else
         echo "NDK_ROOT environment variable is not set, or NDK version is incorrect."
-        echo "This build recommends NDK r21e, downloading..."
+        echo "This build recommends NDK r23b, downloading..."
             if [[ -z $(which curl) ]]; then
                 echo "Error, could not run 'curl' to download NDK. Is it in your PATH?"
                 exit 1
@@ -77,14 +77,14 @@ if [[ -z "${NDK_ROOT}" || -z $(grep "Pkg\.Revision = 21\." "${NDK_ROOT}/source.p
             # Github runners.
             for retry in {1..10} error; do
                 if [[ $retry == "error" ]]; then exit 5; fi
-                rm -f /tmp/android-ndk-r21e.zip
+                rm -f /tmp/android-ndk-r23b.zip
                 curl -f --http1.1 -LSs \
-                    "https://dl.google.com/android/repository/android-ndk-r21e-${platform}-x86_64.zip" \
-                    --output /tmp/android-ndk-r21e.zip && break
+                    "https://dl.google.com/android/repository/android-ndk-r23b-${platform}.zip" \
+                    --output /tmp/android-ndk-r23b.zip && break
                 sleep 30
             done
             set -e
-            (cd /tmp && unzip -oq android-ndk-r21e.zip && rm -f android-ndk-r21e.zip)
-            echo "NDK r21e has been downloaded into /tmp/android-ndk-r21e"
+            (cd /tmp && unzip -oq android-ndk-r23b.zip && rm -f android-ndk-r23b.zip)
+            echo "NDK r23b has been downloaded into /tmp/android-ndk-r23b"
     fi
 fi
diff --git a/cmake/external/firestore.cmake b/cmake/external/firestore.cmake
index c7b47e0758..835aa9de6b 100644
--- a/cmake/external/firestore.cmake
+++ b/cmake/external/firestore.cmake
@@ -20,7 +20,7 @@ endif()
 
 # If the format of the line below changes, then be sure to update
 # https://github.com/firebase/firebase-cpp-sdk/blob/fd054fa016/.github/workflows/update-dependencies.yml#L81
-set(version 12.19.0)
+set(version 13.0.1)
 
 function(GetReleasedDep)
   message("Getting released firebase-ios-sdk @ ${version}")
diff --git a/cmake/external/firestore.patch.txt b/cmake/external/firestore.patch.txt
index fb3ce2e2b8..3ecb13cb94 100644
--- a/cmake/external/firestore.patch.txt
+++ b/cmake/external/firestore.patch.txt
@@ -14,3 +14,118 @@ index 920bf2928..c5c9cc7ee 100644
  
  ExternalProject_Get_property(snappy SOURCE_DIR)
  set(snappy_source_dir "${SOURCE_DIR}")
+diff --git a/Firestore/core/src/util/ordered_code.h b/Firestore/core/src/util/ordered_code.h
+--- a/Firestore/core/src/util/ordered_code.h
++++ b/Firestore/core/src/util/ordered_code.h
+@@ -39,7 +39,8 @@
+ #ifndef FIRESTORE_CORE_SRC_UTIL_ORDERED_CODE_H_
+ #define FIRESTORE_CORE_SRC_UTIL_ORDERED_CODE_H_
+ 
++#include <cstdint>
+ #include <string>
+ 
+ #include "absl/strings/string_view.h"
+ 
+diff --git a/Firestore/core/src/util/quadruple.cc b/Firestore/core/src/util/quadruple.cc
+--- a/Firestore/core/src/util/quadruple.cc
++++ b/Firestore/core/src/util/quadruple.cc
+@@ -20,6 +20,7 @@
+ #include <limits>
+ #include <vector>
+ 
++#include "Firestore/core/src/util/bits.h"
+ #include "Firestore/core/src/util/quadruple_builder.h"
+ 
+ namespace firebase {
+@@ -89,7 +90,7 @@ Quadruple::Quadruple(int64_t x) {
+       mantissa_lo_ = 0;
+     } else {
+       uint64_t ux = static_cast<uint64_t>(x);
+-      int leading_zeros = __builtin_clzll(ux);
++      int leading_zeros = 63 - Bits::Log2FloorNonZero64(ux);
+       // Left-justify with the leading 1 dropped.
+       mantissa_hi_ = ux << (leading_zeros + 1);
+       mantissa_lo_ = 0;
+@@ -225,7 +226,8 @@ Quadruple::operator double() const {
+     }
+     default:
+       int32_t unbiased_exp = static_cast<int32_t>(exponent_ - kExponentBias);
+-      return scalb((1LL << 52) | (mantissa_hi_ >> 12), -52 + unbiased_exp) *
++      return ldexp(static_cast<double>((1ULL << 52) | (mantissa_hi_ >> 12)),
++                   -52 + unbiased_exp) *
+              (negative_ ? -1 : 1);
+   }
+ }
+diff --git a/Firestore/core/src/util/quadruple_builder.h b/Firestore/core/src/util/quadruple_builder.h
+--- a/Firestore/core/src/util/quadruple_builder.h
++++ b/Firestore/core/src/util/quadruple_builder.h
+@@ -16,7 +16,6 @@
+ #ifndef FIRESTORE_CORE_SRC_UTIL_QUADRUPLE_BUILDER_H_
+ #define FIRESTORE_CORE_SRC_UTIL_QUADRUPLE_BUILDER_H_
+ 
+-#include <bit>
+ #include <cstddef>
+ #include <cstdint>
+ 
+diff --git a/Firestore/core/src/util/quadruple_builder.cc b/Firestore/core/src/util/quadruple_builder.cc
+--- a/Firestore/core/src/util/quadruple_builder.cc
++++ b/Firestore/core/src/util/quadruple_builder.cc
+@@ -19,6 +19,8 @@
+ #include <cmath>
+ #include <limits>
+ 
++#include "Firestore/core/src/util/bits.h"
++
+ namespace firebase {
+ namespace firestore {
+ namespace util {
+@@ -785,7 +787,7 @@ void QuadrupleBuilder::multBuffBy10(std::array<uint64_t, N>& buffer) {
+ // added to the result's exponent, or 0 otherwise
+ template <std::size_t N>
+ int32_t QuadrupleBuilder::normalizeMant(std::array<uint64_t, N>& mantissa) {
+-  int32_t expCorr = 31 - __builtin_clzll(mantissa[0]);
++  int32_t expCorr = 31 - (63 - Bits::Log2FloorNonZero64(mantissa[0]));
+   if (expCorr != 0) {
+     divBuffByPower2(mantissa, expCorr);
+   }
+diff --git a/Firestore/core/test/unit/model/mutation_test.cc b/Firestore/core/test/unit/model/mutation_test.cc
+--- a/Firestore/core/test/unit/model/mutation_test.cc
++++ b/Firestore/core/test/unit/model/mutation_test.cc
+@@ -403,29 +403,29 @@ TEST(MutationTest, AppliesIncrementTransformsConsecutively) {
+ 
+ TEST(MutationTest, AppliesIncrementWithoutOverflow) {
+   auto base_data =
+-      Map("a", LONG_MAX - 1, "b", LONG_MAX - 1, "c", LONG_MAX, "d", LONG_MAX);
++      Map("a", INT64_MAX - 1, "b", INT64_MAX - 1, "c", INT64_MAX, "d", INT64_MAX);
+   TransformPairs transforms = {
+       {"a", Increment(1)},
+-      {"b", Increment(LONG_MAX)},
++      {"b", Increment(INT64_MAX)},
+       {"c", Increment(1)},
+-      {"d", Increment(LONG_MAX)},
++      {"d", Increment(INT64_MAX)},
+   };
+   auto expected =
+-      Map("a", LONG_MAX, "b", LONG_MAX, "c", LONG_MAX, "d", LONG_MAX);
++      Map("a", INT64_MAX, "b", INT64_MAX, "c", INT64_MAX, "d", INT64_MAX);
+   TransformBaseDoc(std::move(base_data), transforms, std::move(expected));
+ }
+ 
+ TEST(MutationTest, AppliesIncrementWithoutUnderflow) {
+   auto base_data =
+-      Map("a", LONG_MIN + 1, "b", LONG_MIN + 1, "c", LONG_MIN, "d", LONG_MIN);
++      Map("a", INT64_MIN + 1, "b", INT64_MIN + 1, "c", INT64_MIN, "d", INT64_MIN);
+   TransformPairs transforms = {
+       {"a", Increment(-1)},
+-      {"b", Increment(LONG_MIN)},
++      {"b", Increment(INT64_MIN)},
+       {"c", Increment(-1)},
+-      {"d", Increment(LONG_MIN)},
++      {"d", Increment(INT64_MIN)},
+   };
+   auto expected =
+-      Map("a", LONG_MIN, "b", LONG_MIN, "c", LONG_MIN, "d", LONG_MIN);
++      Map("a", INT64_MIN, "b", INT64_MIN, "c", INT64_MIN, "d", INT64_MIN);
+   TransformBaseDoc(std::move(base_data), transforms, std::move(expected));
+ }
+ 
diff --git a/cpp_sdk_version.json b/cpp_sdk_version.json
index 2668384d24..d74253c517 100644
--- a/cpp_sdk_version.json
+++ b/cpp_sdk_version.json
@@ -1,5 +1,5 @@
 {
-  "released": "13.13.0",
-  "stable": "13.13.0",
-  "head": "13.13.0"
+  "released": "14.0.0",
+  "stable": "14.0.0",
+  "head": "14.0.0"
 }
diff --git a/database/database_resources/build.gradle b/database/database_resources/build.gradle
index 25e6dce442..3704f8d282 100644
--- a/database/database_resources/build.gradle
+++ b/database/database_resources/build.gradle
@@ -51,7 +51,7 @@ android {
 }
 
 dependencies {
-  implementation platform('com.google.firebase:firebase-bom:34.19.0')
+  implementation platform('com.google.firebase:firebase-bom:35.0.0')
   implementation 'com.google.firebase:firebase-analytics'
   implementation 'com.google.firebase:firebase-database'
   //implementation project(':app:app_resources')
diff --git a/database/integration_test/CMakeLists.txt b/database/integration_test/CMakeLists.txt
index 700cb5088d..3ee24c3650 100644
--- a/database/integration_test/CMakeLists.txt
+++ b/database/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/database/integration_test/integration_test.xcodeproj/project.pbxproj b/database/integration_test/integration_test.xcodeproj/project.pbxproj
index 5a376f43e5..df50631242 100644
--- a/database/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/database/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -344,7 +344,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -387,7 +387,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -492,7 +492,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -546,7 +546,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -598,7 +598,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/firestore/firestore_resources/build.gradle b/firestore/firestore_resources/build.gradle
index d471ce9b10..084135c2d7 100644
--- a/firestore/firestore_resources/build.gradle
+++ b/firestore/firestore_resources/build.gradle
@@ -59,7 +59,7 @@ android {
 }
 
 dependencies {
-  implementation platform('com.google.firebase:firebase-bom:34.19.0')
+  implementation platform('com.google.firebase:firebase-bom:35.0.0')
   implementation 'com.google.firebase:firebase-analytics'
   implementation 'com.google.firebase:firebase-firestore'
 }
diff --git a/firestore/integration_test/CMakeLists.txt b/firestore/integration_test/CMakeLists.txt
index 9c74e94d60..fe5428a51c 100644
--- a/firestore/integration_test/CMakeLists.txt
+++ b/firestore/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/firestore/integration_test/integration_test.xcodeproj/project.pbxproj b/firestore/integration_test/integration_test.xcodeproj/project.pbxproj
index 26d07c3b1a..0663126606 100644
--- a/firestore/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/firestore/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -349,7 +349,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -392,7 +392,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -497,7 +497,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -554,7 +554,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -609,7 +609,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/firestore/integration_test_internal/CMakeLists.txt b/firestore/integration_test_internal/CMakeLists.txt
index 9c82aea5da..a50620d897 100644
--- a/firestore/integration_test_internal/CMakeLists.txt
+++ b/firestore/integration_test_internal/CMakeLists.txt
@@ -235,8 +235,8 @@ include_directories(${ABSEIL_CPP_ROOT})
 # Allow testing internal Firebase APIs.
 add_definitions(-DINTERNAL_EXPERIMENTAL)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/firestore/integration_test_internal/integration_test.xcodeproj/project.pbxproj b/firestore/integration_test_internal/integration_test.xcodeproj/project.pbxproj
index f0d41af0fb..6e7258cb53 100644
--- a/firestore/integration_test_internal/integration_test.xcodeproj/project.pbxproj
+++ b/firestore/integration_test_internal/integration_test.xcodeproj/project.pbxproj
@@ -612,7 +612,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -655,7 +655,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -784,7 +784,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -853,7 +853,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -920,7 +920,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/firestore/src/android/blob_android.cc b/firestore/src/android/blob_android.cc
index 696afb6151..d326205180 100644
--- a/firestore/src/android/blob_android.cc
+++ b/firestore/src/android/blob_android.cc
@@ -30,14 +30,12 @@ using jni::Class;
 using jni::Env;
 using jni::Local;
 using jni::Method;
-using jni::Object;
 using jni::StaticMethod;
 
 constexpr char kClass[] =
     PROGUARD_KEEP_CLASS "com/google/firebase/firestore/Blob";
 jclass g_class = nullptr;
 
-Method<Object> kConstructor("<init>", "(Lcom/google/protobuf/ByteString;)V");
 StaticMethod<BlobInternal> kFromBytes(
     "fromBytes", "([B)Lcom/google/firebase/firestore/Blob;");
 Method<Array<uint8_t>> kToBytes("toBytes", "()[B");
@@ -46,7 +44,7 @@ Method<Array<uint8_t>> kToBytes("toBytes", "()[B");
 
 void BlobInternal::Initialize(jni::Loader& loader) {
   g_class = loader.LoadClass(kClass);
-  loader.LoadAll(kConstructor, kFromBytes, kToBytes);
+  loader.LoadAll(kFromBytes, kToBytes);
 }
 
 Class BlobInternal::GetClass() { return Class(g_class); }
diff --git a/functions/integration_test/CMakeLists.txt b/functions/integration_test/CMakeLists.txt
index 4b6d791076..8013d93400 100644
--- a/functions/integration_test/CMakeLists.txt
+++ b/functions/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/functions/integration_test/integration_test.xcodeproj/project.pbxproj b/functions/integration_test/integration_test.xcodeproj/project.pbxproj
index 6d2718c3a4..c2b17246a0 100644
--- a/functions/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/functions/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -356,7 +356,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -399,7 +399,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -504,7 +504,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -561,7 +561,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -616,7 +616,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/installations/integration_test/CMakeLists.txt b/installations/integration_test/CMakeLists.txt
index f740f178f6..f61a3bd198 100644
--- a/installations/integration_test/CMakeLists.txt
+++ b/installations/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/installations/integration_test/integration_test.xcodeproj/project.pbxproj b/installations/integration_test/integration_test.xcodeproj/project.pbxproj
index d37bd46d6a..c683965296 100644
--- a/installations/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/installations/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -223,7 +223,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -266,7 +266,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -370,7 +370,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/ios_spm/Package.swift b/ios_spm/Package.swift
index c2d26b4389..841937b119 100644
--- a/ios_spm/Package.swift
+++ b/ios_spm/Package.swift
@@ -26,8 +26,8 @@ let package = Package(
         .library(name: "FirebaseDependencies", targets: ["FirebaseDependencies"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/firebase/firebase-ios-sdk.git", exact: "12.18.0"),
-        .package(url: "https://github.com/googleads/swift-package-manager-google-user-messaging-platform.git", exact: "2.3.0"),
+        .package(url: "https://github.com/firebase/firebase-ios-sdk.git", exact: "13.0.1"),
+        .package(url: "https://github.com/googleads/swift-package-manager-google-user-messaging-platform.git", exact: "3.1.0"),
     ],
     targets: [
         .target(
diff --git a/ios_spm/swift_headers/FirebaseAnalytics-Swift.h b/ios_spm/swift_headers/FirebaseAnalytics-Swift.h
index 7e176968f9..e75d3aac38 100644
--- a/ios_spm/swift_headers/FirebaseAnalytics-Swift.h
+++ b/ios_spm/swift_headers/FirebaseAnalytics-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -343,7 +343,7 @@ typedef unsigned int swift_uint4 __attribute__((__ext_vector_type__(4)));
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/ios_spm/swift_headers/FirebaseAuth-Swift.h b/ios_spm/swift_headers/FirebaseAuth-Swift.h
index 06f6498e62..a8940b02a0 100644
--- a/ios_spm/swift_headers/FirebaseAuth-Swift.h
+++ b/ios_spm/swift_headers/FirebaseAuth-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -2897,7 +2897,7 @@ SWIFT_CLASS_NAMED("UserProfileChangeRequest")
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/ios_spm/swift_headers/FirebaseCoreInternal-Swift.h b/ios_spm/swift_headers/FirebaseCoreInternal-Swift.h
index 31e8b003f1..5ef4ed7da8 100644
--- a/ios_spm/swift_headers/FirebaseCoreInternal-Swift.h
+++ b/ios_spm/swift_headers/FirebaseCoreInternal-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -406,7 +406,7 @@ SWIFT_CLASS_NAMED("_ObjC_HeartbeatsPayload")
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/ios_spm/swift_headers/FirebaseDatabase-Swift.h b/ios_spm/swift_headers/FirebaseDatabase-Swift.h
index f4ede745b9..b23e9accd7 100644
--- a/ios_spm/swift_headers/FirebaseDatabase-Swift.h
+++ b/ios_spm/swift_headers/FirebaseDatabase-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -343,7 +343,7 @@ typedef unsigned int swift_uint4 __attribute__((__ext_vector_type__(4)));
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/ios_spm/swift_headers/FirebaseFirestore-Swift.h b/ios_spm/swift_headers/FirebaseFirestore-Swift.h
index f58a6ff816..23d3198064 100644
--- a/ios_spm/swift_headers/FirebaseFirestore-Swift.h
+++ b/ios_spm/swift_headers/FirebaseFirestore-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -351,7 +351,7 @@ SWIFT_CLASS_PROPERTY(@property(nonatomic, class, readonly,
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/ios_spm/swift_headers/FirebaseFunctions-Swift.h b/ios_spm/swift_headers/FirebaseFunctions-Swift.h
index 07e26e99f1..4dc9452373 100644
--- a/ios_spm/swift_headers/FirebaseFunctions-Swift.h
+++ b/ios_spm/swift_headers/FirebaseFunctions-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -626,7 +626,7 @@ SWIFT_CLASS_NAMED("HTTPSCallableResult")
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/ios_spm/swift_headers/FirebaseInAppMessaging-Swift.h b/ios_spm/swift_headers/FirebaseInAppMessaging-Swift.h
index f572b43144..993c63c3cc 100644
--- a/ios_spm/swift_headers/FirebaseInAppMessaging-Swift.h
+++ b/ios_spm/swift_headers/FirebaseInAppMessaging-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -343,7 +343,7 @@ typedef unsigned int swift_uint4 __attribute__((__ext_vector_type__(4)));
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/ios_spm/swift_headers/FirebaseRemoteConfig-Swift.h b/ios_spm/swift_headers/FirebaseRemoteConfig-Swift.h
index 1c791b2a9e..398492ecf4 100644
--- a/ios_spm/swift_headers/FirebaseRemoteConfig-Swift.h
+++ b/ios_spm/swift_headers/FirebaseRemoteConfig-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -343,7 +343,7 @@ typedef unsigned int swift_uint4 __attribute__((__ext_vector_type__(4)));
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/ios_spm/swift_headers/FirebaseSessions-Swift.h b/ios_spm/swift_headers/FirebaseSessions-Swift.h
index e695211ae9..e806822a84 100644
--- a/ios_spm/swift_headers/FirebaseSessions-Swift.h
+++ b/ios_spm/swift_headers/FirebaseSessions-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -391,7 +391,7 @@ typedef SWIFT_ENUM_NAMED(NSInteger, FIRSessionsSubscriberName,
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/ios_spm/swift_headers/FirebaseSharedSwift-Swift.h b/ios_spm/swift_headers/FirebaseSharedSwift-Swift.h
index 93f6657f53..b89053b614 100644
--- a/ios_spm/swift_headers/FirebaseSharedSwift-Swift.h
+++ b/ios_spm/swift_headers/FirebaseSharedSwift-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -343,7 +343,7 @@ typedef unsigned int swift_uint4 __attribute__((__ext_vector_type__(4)));
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/ios_spm/swift_headers/FirebaseStorage-Swift.h b/ios_spm/swift_headers/FirebaseStorage-Swift.h
index a3d252ff9e..7eecba4096 100644
--- a/ios_spm/swift_headers/FirebaseStorage-Swift.h
+++ b/ios_spm/swift_headers/FirebaseStorage-Swift.h
@@ -1,7 +1,7 @@
 #if 0
 #elif defined(__arm64__) && __arm64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
@@ -1002,7 +1002,7 @@ SWIFT_CLASS_NAMED("StorageUploadTask")
 
 #elif defined(__x86_64__) && __x86_64__
 // Copyright 2026 Google LLC
-// Copied from Firebase iOS SDK 12.18.0.
+// Copied from Firebase iOS SDK 13.0.1.
 
 // Generated by Apple Swift version 6.2.3 effective-5.10 (swiftlang-6.2.3.3.21
 // clang-1700.6.3.2)
diff --git a/messaging/integration_test/CMakeLists.txt b/messaging/integration_test/CMakeLists.txt
index 9fcf569035..966b810d93 100644
--- a/messaging/integration_test/CMakeLists.txt
+++ b/messaging/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/messaging/integration_test/integration_test.xcodeproj/project.pbxproj b/messaging/integration_test/integration_test.xcodeproj/project.pbxproj
index 73f535437c..10ea65e145 100644
--- a/messaging/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/messaging/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -353,7 +353,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -396,7 +396,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -499,7 +499,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -553,7 +553,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -605,7 +605,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/messaging/messaging_java/build.gradle b/messaging/messaging_java/build.gradle
index 2f4fa03d7d..820a47b3a9 100644
--- a/messaging/messaging_java/build.gradle
+++ b/messaging/messaging_java/build.gradle
@@ -57,7 +57,7 @@ android {
 }
 
 dependencies {
-  implementation platform('com.google.firebase:firebase-bom:34.19.0')
+  implementation platform('com.google.firebase:firebase-bom:35.0.0')
   implementation 'com.google.firebase:firebase-analytics'
   implementation 'com.google.firebase:firebase-messaging'
   implementation 'com.google.flatbuffers:flatbuffers-java:25.2.10'
diff --git a/release_build_files/Android/firebase_dependencies.gradle b/release_build_files/Android/firebase_dependencies.gradle
index ed5bc88f66..cad02b56b4 100644
--- a/release_build_files/Android/firebase_dependencies.gradle
+++ b/release_build_files/Android/firebase_dependencies.gradle
@@ -20,7 +20,7 @@ def firebaseDependenciesMap = [
   'app_check' : ['com.google.firebase:firebase-appcheck',
                  'com.google.firebase:firebase-appcheck-debug',
                  'com.google.firebase:firebase-appcheck-playintegrity'],
-  'play_services' : ['com.google.android.gms:play-services-base:18.10.1'],
+  'play_services' : ['com.google.android.gms:play-services-base:18.11.0'],
   'analytics' : ['com.google.firebase:firebase-analytics'],
   'auth' : ['com.google.firebase:firebase-auth'],
   'database' : ['com.google.firebase:firebase-database'],
@@ -119,7 +119,7 @@ project.afterEvaluate {
 
       // Add the bill-of-materials
     project.dependencies {
-      implementation platform('com.google.firebase:firebase-bom:34.19.0')
+      implementation platform('com.google.firebase:firebase-bom:35.0.0')
     }
     for (String lib : firebaseCpp.dependencies.libSet) {
       // Messaging includes an aar, which to be depended on properly requires
diff --git a/release_build_files/readme.md b/release_build_files/readme.md
index 1e59b8e3c8..903558761e 100644
--- a/release_build_files/readme.md
+++ b/release_build_files/readme.md
@@ -84,7 +84,7 @@ distributed as part of the core Firebase
 
 Feature                    | Required Libraries and Gradle Packages
 -------------------------- | --------------------------------------
-All Firebase SDKs          | platform(com.google.firebase:firebase-bom:34.19.0)
+All Firebase SDKs          | platform(com.google.firebase:firebase-bom:35.0.0)
 |                          | (Android Bill of Materials)
 Firebase Analytics         | libfirebase_analytics.a
 |                          | libfirebase_app.a
@@ -133,7 +133,7 @@ Firebase Messaging         | libfirebase_messaging.a
 |                          | com.google.firebase:firebase-messaging
 |                          | (Maven package)
 |                          | libmessaging_java.jar (Android service)
-|                          | androidx.core:core:1.19.0  (Maven package)
+|                          | androidx.core:core:1.19.1  (Maven package)
 Firebase Realtime Database | libfirebase_database.a
 |                          | libfirebase_auth.a
 |                          | libfirebase_app.a
@@ -164,7 +164,7 @@ User Messaging Platform    | libfirebase_ump.a
 |                          | (Maven package)
 |                          | com.google.android.ump:user-messaging-platform:4.0.0
 |                          | (Maven package)
-Google Play services module| com.google.android.gms:play-services-base:18.10.1
+Google Play services module| com.google.android.gms:play-services-base:18.11.0
 |                          | (Maven package)
 
 The Firebase C++ SDK uses an Android BoM (Bill of Materials) to specify a single
@@ -219,46 +219,46 @@ Feature                    | Required Frameworks and Cocoapods
 -------------------------- | ---------------------------------------
 Firebase Analytics         | firebase_analytics.xcframework
 |                          | firebase.xcframework
-|                          | Firebase/Analytics Cocoapod (12.19.0)
+|                          | Firebase/Analytics (13.0.1)
 Firebase App Check         | firebase_app_check.xcframework
 |                          | firebase.xcframework
-|                          | Firebase/AppCheck Cocoapod (12.19.0)
+|                          | Firebase/AppCheck (13.0.1)
 Firebase Authentication    | firebase_auth.xcframework
 |                          | firebase.xcframework
-|                          | Firebase/Auth Cocoapod (12.19.0)
+|                          | Firebase/Auth (13.0.1)
 Cloud Firestore            | firebase_firestore.xcframework
 |                          | firebase_auth.xcframework
 |                          | firebase.xcframework
-|                          | Firebase/Firestore Cocoapod (12.19.0)
-|                          | Firebase/Auth Cocoapod (12.19.0)
+|                          | Firebase/Firestore (13.0.1)
+|                          | Firebase/Auth (13.0.1)
 Firebase Functions         | firebase_functions.xcframework
 |                          | firebase_auth.xcframework (optional)
 |                          | firebase.xcframework
-|                          | Firebase/Functions Cocoapod (12.19.0)
-|                          | Firebase/Auth Cocoapod (12.19.0)
+|                          | Firebase/Functions (13.0.1)
+|                          | Firebase/Auth (13.0.1)
 Firebase Installations     | firebase_installations.xcframework
 |                          | firebase.xcframework
-|                          | FirebaseInstallations Cocoapod (12.19.0)
+|                          | FirebaseInstallations (13.0.1)
 Firebase Cloud Messaging   | firebase_messaging.xcframework
 |                          | firebase.xcframework
-|                          | Firebase/Messaging Cocoapod (12.19.0)
+|                          | Firebase/Messaging (13.0.1)
 Firebase Realtime Database | firebase_database.xcframework
 |                          | firebase_auth.xcframework
 |                          | firebase.xcframework
-|                          | Firebase/Database Cocoapod (12.19.0)
-|                          | Firebase/Auth Cocoapod (12.19.0)
+|                          | Firebase/Database (13.0.1)
+|                          | Firebase/Auth (13.0.1)
 Firebase Remote Config     | firebase_remote_config.xcframework
 |                          | firebase.xcframework
-|                          | Firebase/RemoteConfig Cocoapod (12.19.0)
+|                          | Firebase/RemoteConfig (13.0.1)
 Firebase Storage           | firebase_storage.xcframework
 |                          | firebase_auth.xcframework
 |                          | firebase.xcframework
-|                          | Firebase/Storage Cocoapod (12.19.0)
-|                          | Firebase/Auth Cocoapod (12.19.0)
+|                          | Firebase/Storage (13.0.1)
+|                          | Firebase/Auth (13.0.1)
 User Messaging Platform    | firebase_ump.xcframework
 |                          | firebase.xcframework
-|                          | Firebase/CoreOnly Cocoapod (12.19.0)
-|                          | GoogleUserMessagingPlatform Cocoapod (2.3.0)
+|                          | Firebase/CoreOnly (13.0.1)
+|                          | GoogleUserMessagingPlatform (3.1.0)
 
 Important: Each version of the Firebase C++ SDK supports a specific version of
 the Firebase iOS SDK. Please ensure that you reference the Cocoapod versions
@@ -278,46 +278,46 @@ Feature                    | Required Libraries and Cocoapods
 -------------------------- | -----------------------------------------
 Firebase Analytics         | libfirebase_analytics.a
 |                          | libfirebase_app.a
-|                          | Firebase/Analytics Cocoapod (12.19.0)
+|                          | Firebase/Analytics (13.0.1)
 Firebase App Check         | firebase_app_check.xcframework
 |                          | firebase.xcframework
-|                          | Firebase/AppCheck Cocoapod (12.19.0)
+|                          | Firebase/AppCheck (13.0.1)
 Firebase Authentication    | libfirebase_auth.a
 |                          | libfirebase_app.a
-|                          | Firebase/Auth Cocoapod (12.19.0)
+|                          | Firebase/Auth (13.0.1)
 Cloud Firestore            | libfirebase_firestore.a
 |                          | libfirebase_app.a
 |                          | libfirebase_auth.a
-|                          | Firebase/Firestore Cocoapod (12.19.0)
-|                          | Firebase/Auth Cocoapod (12.19.0)
+|                          | Firebase/Firestore (13.0.1)
+|                          | Firebase/Auth (13.0.1)
 Firebase Functions         | libfirebase_functions.a
 |                          | libfirebase_app.a
 |                          | libfirebase_auth.a (optional)
-|                          | Firebase/Functions Cocoapod (12.19.0)
-|                          | Firebase/Auth Cocoapod (12.19.0)
+|                          | Firebase/Functions (13.0.1)
+|                          | Firebase/Auth (13.0.1)
 Firebase Installations     | libfirebase_installations.a
 |                          | libfirebase_app.a
-|                          | FirebaseInstallations Cocoapod (12.19.0)
+|                          | FirebaseInstallations (13.0.1)
 Firebase Cloud Messaging   | libfirebase_messaging.a
 |                          | libfirebase_app.a
-|                          | Firebase/CloudMessaging Cocoapod (12.19.0)
+|                          | Firebase/CloudMessaging (13.0.1)
 Firebase Realtime Database | libfirebase_database.a
 |                          | libfirebase_app.a
 |                          | libfirebase_auth.a
-|                          | Firebase/Database Cocoapod (12.19.0)
-|                          | Firebase/Auth Cocoapod (12.19.0)
+|                          | Firebase/Database (13.0.1)
+|                          | Firebase/Auth (13.0.1)
 Firebase Remote Config     | libfirebase_remote_config.a
 |                          | libfirebase_app.a
-|                          | Firebase/RemoteConfig Cocoapod (12.19.0)
+|                          | Firebase/RemoteConfig (13.0.1)
 Firebase Storage           | libfirebase_storage.a
 |                          | libfirebase_app.a
 |                          | libfirebase_auth.a
-|                          | Firebase/Storage Cocoapod (12.19.0)
-|                          | Firebase/Auth Cocoapod (12.19.0)
+|                          | Firebase/Storage (13.0.1)
+|                          | Firebase/Auth (13.0.1)
 User Messaging Platform    | libfirebase_ump.a
 |                          | libfirebase_app.a
-|                          | Firebase/CoreOnly Cocoapod (12.19.0)
-|                          | GoogleUserMessagingPlatform Cocoapod (2.3.0)
+|                          | Firebase/CoreOnly (13.0.1)
+|                          | GoogleUserMessagingPlatform (3.1.0)
 
 Important: Each version of the Firebase C++ SDK supports a specific version of
 the Firebase iOS SDK. Please ensure that you reference the Cocoapod versions
@@ -408,7 +408,7 @@ Firebase Cloud Messaging (stub) | firebase_messaging.framework
 User Messaging Platform (stub)  | libfirebase_ump.a
 |                               | libfirebase_app.a
 
-The provided libraries have been tested using Xcode 26.2. When building C++
+The provided libraries have been tested using Xcode 26.4. When building C++
 desktop apps on OS X, you will need to link the `gssapi_krb5` and `pthread`
 system libraries, as well as the `CoreFoundation`, `Foundation`, `GSS`, and
 `Security` OS X system frameworks (consult your compiler documentation for more
@@ -613,8 +613,12 @@ workflow use only during the development of your app, not for publicly shipping
 code.
 
 ## Release Notes
-### Upcoming
+### 14.0.0
 - Changes
+    - General (Android): Update to Firebase Android BoM version 35.0.0.
+    - General (iOS): Update to Firebase Cocoapods version 13.0.0.
+    - General (iOS, tvOS, Desktop): iOS, tvOS, and macOS SDKs are now built
+      using Xcode 26.4.
     - General (Android): **Breaking Change** Updated minSdkVersion to 24.
     - General (MacOS Desktop): Fix for linker issue on XCode 27. (#1920)
     - Auth: **Breaking Change:** Fixed spelling in `AuthError` enum values (`kAuthErrorWebStorateUnsupported` -> `kAuthErrorWebStorageUnsupported` and `kAuthErrorFederatedProviderAreadyInUse` -> `kAuthErrorFederatedProviderAlreadyInUse`).
diff --git a/remote_config/integration_test/CMakeLists.txt b/remote_config/integration_test/CMakeLists.txt
index e6a570eea9..a8bdac90a2 100644
--- a/remote_config/integration_test/CMakeLists.txt
+++ b/remote_config/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/remote_config/integration_test/integration_test.xcodeproj/project.pbxproj b/remote_config/integration_test/integration_test.xcodeproj/project.pbxproj
index bdd23a55da..3c2a19f4be 100644
--- a/remote_config/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/remote_config/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -338,7 +338,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -381,7 +381,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -484,7 +484,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -538,7 +538,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -590,7 +590,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/remote_config/remote_config_resources/build.gradle b/remote_config/remote_config_resources/build.gradle
index f21f1dd778..6e0e672703 100644
--- a/remote_config/remote_config_resources/build.gradle
+++ b/remote_config/remote_config_resources/build.gradle
@@ -55,7 +55,7 @@ android {
 }
 
 dependencies {
-  implementation platform('com.google.firebase:firebase-bom:34.19.0')
+  implementation platform('com.google.firebase:firebase-bom:35.0.0')
   implementation 'com.google.firebase:firebase-config'
 }
 
diff --git a/scripts/gha/install_test_workflow_prereqs.sh b/scripts/gha/install_test_workflow_prereqs.sh
index 622cc43be3..cdb067c81a 100755
--- a/scripts/gha/install_test_workflow_prereqs.sh
+++ b/scripts/gha/install_test_workflow_prereqs.sh
@@ -74,8 +74,8 @@ fi
 
 if [[ "${TEST_ONLY}" == "" ]]; then
     if [[ "${PLATFORM}" == "Android" ]]; then
-        echo "NDK_ROOT=/tmp/android-ndk-r21e" >> $GITHUB_ENV
-        echo "ANDROID_NDK_HOME=/tmp/android-ndk-r21e" >> $GITHUB_ENV
+        echo "NDK_ROOT=/tmp/android-ndk-r23b" >> $GITHUB_ENV
+        echo "ANDROID_NDK_HOME=/tmp/android-ndk-r23b" >> $GITHUB_ENV
         build_scripts/android/install_prereqs.sh
     elif [[ "${PLATFORM}" == "iOS" ]]; then
         build_scripts/ios/install_prereqs.sh
diff --git a/scripts/gha/integration_testing/gameloop_apple/gameloop.xcodeproj/project.pbxproj b/scripts/gha/integration_testing/gameloop_apple/gameloop.xcodeproj/project.pbxproj
index a1de73c846..232bccae88 100644
--- a/scripts/gha/integration_testing/gameloop_apple/gameloop.xcodeproj/project.pbxproj
+++ b/scripts/gha/integration_testing/gameloop_apple/gameloop.xcodeproj/project.pbxproj
@@ -487,7 +487,7 @@
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -548,7 +548,7 @@
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
diff --git a/scripts/gha/print_matrix_configuration.py b/scripts/gha/print_matrix_configuration.py
index 2cb093fdc0..6384cf3751 100644
--- a/scripts/gha/print_matrix_configuration.py
+++ b/scripts/gha/print_matrix_configuration.py
@@ -73,35 +73,35 @@
 PARAMETERS = {
   "desktop": {
     "matrix": {
-      "os": ["ubuntu-22.04", "macos-15"],
+      "os": ["ubuntu-22.04", "macos-26"],
       "build_type": ["Release", "Debug"],
       "architecture": ["x64", "x86", "arm64"],
       "msvc_runtime": ["static","dynamic"],
-      "xcode_version": ["26.2"],
+      "xcode_version": ["26.4"],
       "python_version": ["3.9"],
 
       EXPANDED_KEY: {
-        "os": ["ubuntu-22.04", "macos-15", "windows-2022"],
-        "xcode_version": ["26.2"],
+        "os": ["ubuntu-22.04", "macos-26", "windows-2022"],
+        "xcode_version": ["26.4"],
       }
     }
   },
 
   "android": {
     "matrix": {
-      "os": ["ubuntu-22.04", "macos-15", "windows-2022"],
+      "os": ["ubuntu-22.04", "macos-26", "windows-2022"],
       "architecture": ["x64", "arm64"],
       "python_version": ["3.9"],
 
       EXPANDED_KEY: {
-        "os": ["ubuntu-22.04", "macos-15", "windows-2022"]
+        "os": ["ubuntu-22.04", "macos-26", "windows-2022"]
       }
     }
   },
 
   "integration_tests": {
     "matrix": {
-      "os": ["ubuntu-22.04", "macos-15", "windows-2022"],
+      "os": ["ubuntu-22.04", "macos-26", "windows-2022"],
       "platform": ["Desktop", "Android", "iOS", "tvOS"],
       "ssl_lib": ["openssl"],
       "android_device": ["android_target", "emulator_ftl_target"],
@@ -113,8 +113,8 @@
       "msvc_runtime": ["dynamic"],
       "cpp_compiler_windows": ["VisualStudio2019"],
       "cpp_compiler_linux": ["clang-11.0"],
-      "xcode_version": ["26.2"],  # only the first one is used
-      "ndk_version": ["r22b"],
+      "xcode_version": ["26.4"],  # only the first one is used
+      "ndk_version": ["r23b"],
       "platform_version": ["28"],
       "build_tools_version": ["28.0.3"],
 
@@ -141,10 +141,10 @@
 
   "ios": {
     "matrix": {
-      "xcode_version": ["26.2"],
+      "xcode_version": ["26.4"],
 
       EXPANDED_KEY: {
-        "xcode_version": ["26.2"]
+        "xcode_version": ["26.4"]
       }
     }
   },
@@ -209,8 +209,8 @@
       {"type": "ftl", "device": "model=iphone8,version=16.6"},
       {"type": "ftl", "device": "model=ipad10,version=16.6"},
   ],
-  "simulator_target": [ {"type": "virtual", "name":"iPhone 16 Pro Max", "version":"26.2"} ],
-  "tvos_simulator": [ {"type": "virtual", "name":"Apple TV", "version":"26.2"} ],
+  "simulator_target": [ {"type": "virtual", "name":"iPhone 17 Pro Max", "version":"26.4.1"} ],
+  "tvos_simulator": [ {"type": "virtual", "name":"Apple TV", "version":"26.4.1"} ],
 }
 
 # Easy accesssor for getting a TEST_DEVICES entry. Note that once a device model
diff --git a/scripts/gha/ui_testing/uitest_apple/FirebaseCppUITestApp.xcodeproj/project.pbxproj b/scripts/gha/ui_testing/uitest_apple/FirebaseCppUITestApp.xcodeproj/project.pbxproj
index 2389a01b57..affae3fd0c 100644
--- a/scripts/gha/ui_testing/uitest_apple/FirebaseCppUITestApp.xcodeproj/project.pbxproj
+++ b/scripts/gha/ui_testing/uitest_apple/FirebaseCppUITestApp.xcodeproj/project.pbxproj
@@ -242,7 +242,7 @@
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -303,7 +303,7 @@
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
diff --git a/storage/integration_test/CMakeLists.txt b/storage/integration_test/CMakeLists.txt
index 1fc6cad1d3..89fe149815 100644
--- a/storage/integration_test/CMakeLists.txt
+++ b/storage/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/storage/integration_test/integration_test.xcodeproj/project.pbxproj b/storage/integration_test/integration_test.xcodeproj/project.pbxproj
index 23229e1906..a74d74e65b 100644
--- a/storage/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/storage/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -355,7 +355,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -398,7 +398,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -503,7 +503,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -560,7 +560,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
@@ -615,7 +615,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/storage/storage_resources/build.gradle b/storage/storage_resources/build.gradle
index 0d5e8ba569..ba839fda5d 100644
--- a/storage/storage_resources/build.gradle
+++ b/storage/storage_resources/build.gradle
@@ -54,7 +54,7 @@ android {
 }
 
 dependencies {
-  implementation platform('com.google.firebase:firebase-bom:34.19.0')
+  implementation platform('com.google.firebase:firebase-bom:35.0.0')
   implementation 'com.google.firebase:firebase-analytics'
   implementation 'com.google.firebase:firebase-storage'
 }
diff --git a/testing/CMakeLists.txt b/testing/CMakeLists.txt
index ee68f42769..45a75be01c 100644
--- a/testing/CMakeLists.txt
+++ b/testing/CMakeLists.txt
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 cmake_minimum_required(VERSION 3.22)
-set (CMAKE_CXX_STANDARD 14)
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 include(binary_to_array)
diff --git a/ump/integration_test/CMakeLists.txt b/ump/integration_test/CMakeLists.txt
index 01bab7b8a4..cc54870e55 100644
--- a/ump/integration_test/CMakeLists.txt
+++ b/ump/integration_test/CMakeLists.txt
@@ -84,8 +84,8 @@ set(FIREBASE_INTEGRATION_TEST_SRCS
 # The include directory for the testapp.
 include_directories(src)
 
-# Firebase C++ SDK requires C++14.
-set (CMAKE_CXX_STANDARD 14)
+# Firebase C++ SDK requires C++17.
+set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED YES)  # Don't fall back to an earlier version.
 
 # Download and unpack googletest (and googlemock) at configure time
diff --git a/ump/integration_test/integration_test.xcodeproj/project.pbxproj b/ump/integration_test/integration_test.xcodeproj/project.pbxproj
index f0a8b9b4dc..7984a0beea 100644
--- a/ump/integration_test/integration_test.xcodeproj/project.pbxproj
+++ b/ump/integration_test/integration_test.xcodeproj/project.pbxproj
@@ -228,7 +228,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -271,7 +271,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -377,7 +377,7 @@
 			repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
 			requirement = {
 				kind = exactVersion;
-				version = 12.19.0;
+				version = 13.0.1;
 			};
 		};
 		1ABAD42B030000000002 /* XCRemoteSwiftPackageReference "swift-package-manager-google-user-messaging-platform" */ = {
@@ -385,7 +385,7 @@
 			repositoryURL = "https://github.com/googleads/swift-package-manager-google-user-messaging-platform.git";
 			requirement = {
 				kind = exactVersion;
-				version = 2.3.0;
+				version = 3.1.0;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
diff --git a/ump/ump_resources/build.gradle b/ump/ump_resources/build.gradle
index 59d166ec9a..98a7cbee57 100644
--- a/ump/ump_resources/build.gradle
+++ b/ump/ump_resources/build.gradle
@@ -56,7 +56,7 @@ android {
 }
 
 dependencies {
-  implementation platform('com.google.firebase:firebase-bom:34.19.0')
+  implementation platform('com.google.firebase:firebase-bom:35.0.0')
   implementation 'com.google.firebase:firebase-analytics'
   implementation 'com.google.android.ump:user-messaging-platform:4.0.0'
 }