diff --git a/.github/workflows/buildandtest.yml b/.github/workflows/buildandtest.yml
index fbd43ab0af..ad81491e2b 100644
--- a/.github/workflows/buildandtest.yml
+++ b/.github/workflows/buildandtest.yml
@@ -17,12 +17,12 @@ jobs:
 
   job_test:
     name: Test
-    runs-on: ubuntu-latest
+    runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
     needs: [diff_check]
     if: ${{ needs.diff_check.outputs.skip_ci != 'true' }}
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
-      - run: npm i -g corepack
+      - run: corepack enable
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
@@ -36,12 +36,12 @@ jobs:
 
   job_lint:
     name: Lint
-    runs-on: ubuntu-latest
+    runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
     needs: [diff_check]
     if: ${{ needs.diff_check.outputs.skip_ci != 'true' }}
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
-      - run: npm i -g corepack
+      - run: corepack enable
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
@@ -66,28 +66,49 @@ jobs:
           clang --version
           clang-format --version
 
-      - name: Install Swiftly
+      - name: Install Swiftly and Swift
         run: |
-          SWIFTLY_FILE="swiftly-$(uname -m).tar.gz"
-          curl -sL https://download.swift.org/swiftly/linux/swiftly-x86_64.tar.gz -o $SWIFTLY_FILE
-          tar zxf $SWIFTLY_FILE
+          # Install Swift dependencies first
+          sudo apt-get update
+          sudo apt-get -y install libcurl4-openssl-dev libz3-dev libncurses-dev libedit-dev libxml2-dev
+
+          ARCH=$(uname -m)
+          SWIFTLY_FILE="swiftly-${ARCH}.tar.gz"
+          curl -sL "https://download.swift.org/swiftly/linux/swiftly-${ARCH}.tar.gz" -o "$SWIFTLY_FILE"
+          tar zxf "$SWIFTLY_FILE"
 
           ./swiftly init --quiet-shell-followup
           . "${SWIFTLY_HOME_DIR:-$HOME/.local/share/swiftly}/env.sh"
           hash -r
-          sudo apt-get -y install libcurl4-openssl-dev
+
+          # Install Swift 6.0 (compatible with SwiftLint 0.63.2)
+          swiftly install 6.0
+          swift --version
+
+          # Export Swift toolchain path for SwiftLint's SourceKit
+          SWIFT_BIN=$(which swift)
+          SWIFT_TOOLCHAIN=$(dirname $(dirname "$SWIFT_BIN"))
+          SOURCEKIT_PATH=$(find "${SWIFT_TOOLCHAIN}" -name "libsourcekitdInProc.so" -print -quit 2>/dev/null)
+          if [ -n "$SOURCEKIT_PATH" ]; then
+            echo "LINUX_SOURCEKIT_LIB_PATH=$(dirname "$SOURCEKIT_PATH")" >> $GITHUB_ENV
+          else
+            echo "ERROR: libsourcekitdInProc.so not found under ${SWIFT_TOOLCHAIN}"
+            exit 1
+          fi
 
       - name: Lint
-        run: yarn lint
+        run: |
+          . "${SWIFTLY_HOME_DIR:-$HOME/.local/share/swiftly}/env.sh"
+          yarn lint
 
   job_check_integrity:
     name: Check package integrity
-    runs-on: ubuntu-latest
+    runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
     needs: [diff_check]
     if: ${{ needs.diff_check.outputs.skip_ci != 'true' }}
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
-      - run: npm i -g corepack
+      - run: corepack enable
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
@@ -106,12 +127,12 @@ jobs:
 
   job_build:
     name: Build
-    runs-on: ubuntu-latest
+    runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
     needs: [diff_check]
     if: ${{ needs.diff_check.outputs.skip_ci != 'true' }}
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
-      - run: npm i -g corepack
+      - run: corepack enable
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
@@ -148,14 +169,14 @@ jobs:
 
   job_type_check:
     name: Type Check Typescript 3.8
-    runs-on: ubuntu-latest
+    runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
     needs: [job_build, diff_check]
     if: ${{ needs.diff_check.outputs.skip_ci != 'true' }}
     env:
       YARN_ENABLE_IMMUTABLE_INSTALLS: false
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
-      - run: npm i -g corepack
+      - run: corepack enable
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
@@ -181,12 +202,12 @@ jobs:
         run: yarn type-check
   job_circular_dep_check:
     name: Circular Dependency Check
-    runs-on: ubuntu-latest
+    runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
     needs: [job_build, diff_check]
     if: ${{ needs.diff_check.outputs.skip_ci != 'true' }}
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
-      - run: npm i -g corepack
+      - run: corepack enable
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
@@ -210,7 +231,7 @@ jobs:
 
   job_bundle:
     name: Bundle
-    runs-on: ubuntu-latest
+    runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
     needs: [job_test, job_build, diff_check]
     if: ${{ needs.diff_check.outputs.skip_ci != 'true' }}
     strategy:
@@ -221,7 +242,7 @@ jobs:
         dev: [true, false]
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
-      - run: npm i -g corepack
+      - run: corepack enable
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
diff --git a/.github/workflows/codegen.yml b/.github/workflows/codegen.yml
index 9e8f8aa179..6d3bc6be6f 100644
--- a/.github/workflows/codegen.yml
+++ b/.github/workflows/codegen.yml
@@ -16,7 +16,7 @@ jobs:
     uses: ./.github/workflows/skip-ci.yml
 
   codegen:
-    runs-on: ubuntu-latest
+    runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
     needs: [diff_check]
     if: ${{ needs.diff_check.outputs.skip_ci != 'true' }}
     strategy:
@@ -36,7 +36,7 @@ jobs:
                 --targetPlatform ios
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
-      - run: npm i -g corepack
+      - run: corepack enable
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
diff --git a/.github/workflows/e2e-v2.yml b/.github/workflows/e2e-v2.yml
index ad5dabeb29..8b9c6dd609 100644
--- a/.github/workflows/e2e-v2.yml
+++ b/.github/workflows/e2e-v2.yml
@@ -52,7 +52,7 @@ jobs:
             name: iOS
             appPlain: performance-tests/test-app-plain.ipa
           - platform: android
-            runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:22.04", "runner_group_id:10"]
+            runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
             name: Android
             appPlain: performance-tests/TestAppPlain/android/app/build/outputs/apk/release/app-release.apk
     steps:
@@ -205,7 +205,7 @@ jobs:
             rn-version: '0.84.0'
             runs-on: ["ghcr.io/cirruslabs/macos-tahoe-xcode:26.2.0", "runner_group_id:10"]
           - platform: android
-            runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:22.04", "runner_group_id:10"]
+            runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
         exclude:
           # exclude JSC for new RN versions (keeping the matrix manageable)
           - rn-version: '0.84.0'
@@ -332,9 +332,9 @@ jobs:
         include:
           - platform: ios
             rn-version: '0.84.0'
-            runs-on:  macos-26
+            runs-on: ["ghcr.io/cirruslabs/macos-tahoe-xcode:26.2.0", "runner_group_id:10"]
           - platform: android
-            runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:22.04", "runner_group_id:10"]
+            runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
diff --git a/.github/workflows/native-tests.yml b/.github/workflows/native-tests.yml
index 29afab853c..60f1afd8c6 100644
--- a/.github/workflows/native-tests.yml
+++ b/.github/workflows/native-tests.yml
@@ -26,14 +26,14 @@ jobs:
 
   test-ios:
     name: ios
-    runs-on: macos-15
+    runs-on: ["ghcr.io/cirruslabs/macos-tahoe-xcode:26.2.0", "runner_group_id:10"]
     needs: [diff_check]
     if: ${{ needs.diff_check.outputs.skip_ci != 'true' }}
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Enable Corepack
-        run: npm i -g corepack
+        run: corepack enable
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
@@ -44,6 +44,16 @@ jobs:
       - name: Install SDK JS Dependencies
         run: yarn install
 
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.3.0'
+        env:
+          # Disable rbenv to avoid .ruby-version conflicts
+          RBENV_VERSION: system
+
+      - name: Install CocoaPods
+        run: gem install cocoapods
+
       - name: Install App Pods
         working-directory: packages/core/RNSentryCocoaTester
         run: pod install
@@ -56,6 +66,10 @@ jobs:
         env:
           SCHEME: RNSentryCocoaTester
           CONFIGURATION: Release
+          # Fix for Xcode 26+ with MetalToolchain: use default Xcode toolchain to avoid
+          # missing Swift compatibility libraries (swiftCompatibility56, etc.)
+          # See: https://github.com/actions/runner-images/issues/13135
+          TOOLCHAINS: com.apple.dt.toolchain.XcodeDefault
         run: |
           # Find first available iPhone simulator from latest iOS runtime
           DEVICE_ID=$(xcrun simctl list devices available iPhone -j | jq -r '
@@ -83,7 +97,7 @@ jobs:
 
   test-android:
     name: android
-    runs-on: ubuntu-latest
+    runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
     needs: [diff_check]
     if: ${{ needs.diff_check.outputs.skip_ci != 'true' }}
     steps:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7ad72b0347..4f8e04a7c1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,7 +18,7 @@ permissions:
 
 jobs:
   release:
-    runs-on: ubuntu-latest
+    runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04", "runner_group_id:10"]
     name: Release a new version
     steps:
       - name: Get auth token
@@ -33,7 +33,7 @@ jobs:
           token: ${{ steps.token.outputs.token }}
           fetch-depth: 0
 
-      - run: npm i -g corepack
+      - run: corepack enable
 
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
diff --git a/.github/workflows/sample-application-expo.yml b/.github/workflows/sample-application-expo.yml
index a304dc7e33..5cbdf706a6 100644
--- a/.github/workflows/sample-application-expo.yml
+++ b/.github/workflows/sample-application-expo.yml
@@ -43,24 +43,25 @@ jobs:
         build-type: ['dev', 'production']
         include:
           - platform: ios
-            runs-on: ["ghcr.io/cirruslabs/macos-sequoia-xcode:16.4", "runner_group_id:10"]
+            runs-on: ["ghcr.io/cirruslabs/macos-tahoe-xcode:26.2.0", "runner_group_id:10"]
           - platform: android
-            runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:22.04", "runner_group_id:10"]
+            runs-on: ubuntu-latest
           - platform: web
-            runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:22.04", "runner_group_id:10"]
+            runs-on: ubuntu-latest
         exclude:
           - platform: 'android'
             ios-use-frameworks: 'dynamic-frameworks'
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
+      - name: Enable Corepack (NPM)
+        if: ${{ matrix.platform != 'ios' }}
+        run: npm i -g corepack
+
       - name: Enable Corepack
+        if: ${{ matrix.platform == 'ios' }}
         run: corepack enable
 
-      - name: Install Ninja
-        if: ${{ matrix.platform == 'android' }}
-        run: sudo apt-get update && sudo apt-get install -y ninja-build
-
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
@@ -125,6 +126,11 @@ jobs:
       - name: Build iOS App
         if: ${{ matrix.platform == 'ios' }}
         working-directory: samples/expo/ios
+        env:
+          # Fix for Xcode 26+ with MetalToolchain: use default Xcode toolchain to avoid
+          # missing Swift compatibility libraries (swiftCompatibility56, etc.)
+          # See: https://github.com/actions/runner-images/issues/13135
+          TOOLCHAINS: com.apple.dt.toolchain.XcodeDefault
         run: |
           [[ "${{ matrix.build-type }}" == "production" ]] && CONFIG='Release' || CONFIG='Debug'
           echo "Building $CONFIG"
diff --git a/.github/workflows/sample-application.yml b/.github/workflows/sample-application.yml
index 26c49289fb..9b64df36cf 100644
--- a/.github/workflows/sample-application.yml
+++ b/.github/workflows/sample-application.yml
@@ -52,11 +52,11 @@ jobs:
         build-type: ['dev', 'production']
         include:
           - platform: ios
-            runs-on: ["ghcr.io/cirruslabs/macos-sequoia-xcode:16.4", "runner_group_id:10"]
+            runs-on: ["ghcr.io/cirruslabs/macos-tahoe-xcode:26.2.0", "runner_group_id:10"]
           - platform: macos
             runs-on: ["ghcr.io/cirruslabs/macos-sequoia-xcode:16.4", "runner_group_id:10"]
           - platform: android
-            runs-on: ["ghcr.io/cirruslabs/ubuntu-runner-amd64:22.04", "runner_group_id:10"]
+            runs-on: ubuntu-latest
         exclude:
           - platform: 'android'
             ios-use-frameworks: 'dynamic-frameworks'
@@ -69,13 +69,14 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
+      - name: Enable Corepack (NPM)
+        if: ${{ matrix.platform == 'android' }}
+        run: npm i -g corepack
+
       - name: Enable Corepack
+        if: ${{ matrix.platform != 'android' }}
         run: corepack enable
 
-      - name: Install Ninja
-        if: ${{ matrix.platform == 'android' }}
-        run: sudo apt-get update && sudo apt-get install -y ninja-build
-
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:
           package-manager-cache: false
@@ -135,6 +136,11 @@ jobs:
       - name: Build iOS App
         if: ${{ matrix.platform == 'ios' }}
         working-directory: ${{ env.REACT_NATIVE_SAMPLE_PATH }}
+        env:
+          # Fix for Xcode 26+ with MetalToolchain: use default Xcode toolchain to avoid
+          # missing Swift compatibility libraries (swiftCompatibility56, etc.)
+          # See: https://github.com/actions/runner-images/issues/13135
+          TOOLCHAINS: com.apple.dt.toolchain.XcodeDefault
         run: |
           [[ "${{ matrix.build-type }}" == "production" ]] && export CONFIG='Release' || export CONFIG='Debug'
 
@@ -210,7 +216,7 @@ jobs:
       matrix:
         include:
           - platform: ios
-            runs-on: macos-15
+            runs-on: ["ghcr.io/cirruslabs/macos-tahoe-xcode:26.2.0", "runner_group_id:10"]
             rn-architecture: 'new'
             ios-use-frameworks: 'no-frameworks'
             build-type: 'production'
@@ -228,10 +234,6 @@ jobs:
         with:
           version: ${{env.MAESTRO_VERSION}}
 
-      - name: Install Ninja
-        if: ${{ matrix.platform == 'android' }}
-        run: sudo apt-get update && sudo apt-get install -y ninja-build
-
       - name: Download iOS App Archive
         if: ${{ matrix.platform == 'ios' }}
         uses: actions/download-artifact@v7
@@ -258,7 +260,12 @@ jobs:
           unzip ${{ env.ANDROID_APP_ARCHIVE_PATH }}
           rm app-androidTest.apk
 
+      - name: Enable Corepack (NPM)
+        if: ${{ matrix.platform == 'android' }}
+        run: npm i -g corepack
+
       - name: Enable Corepack
+        if: ${{ matrix.platform != 'android' }}
         run: corepack enable
 
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
diff --git a/.github/workflows/testflight.yml b/.github/workflows/testflight.yml
index ac48600ec2..aacc915ef1 100644
--- a/.github/workflows/testflight.yml
+++ b/.github/workflows/testflight.yml
@@ -3,7 +3,7 @@ on:
   push:
     branches:
       - main
-      - alwx/ci/macos-tahoe-cl-runners
+      - alwx/experiment/cirrus-labs-for-everythin
 
   pull_request:
     paths:
diff --git a/.swiftlint.yml b/.swiftlint.yml
index efdb728bf9..67291fe397 100755
--- a/.swiftlint.yml
+++ b/.swiftlint.yml
@@ -50,13 +50,13 @@ only_rules:
   - number_separator
   - opening_brace
   - operator_usage_whitespace
-  - operator_whitespace
+  - function_name_whitespace
   - overridden_super_call
   - private_outlet
   - private_unit_test
   - prohibited_super_call
   - redundant_nil_coalescing
-  - redundant_optional_initialization
+  - implicit_optional_initialization
   - redundant_string_enum_value
   - redundant_void_return
   - return_arrow_whitespace
diff --git a/scripts/swiftlint.sh b/scripts/swiftlint.sh
index bd0cb23f3f..cce2bc42d4 100755
--- a/scripts/swiftlint.sh
+++ b/scripts/swiftlint.sh
@@ -21,10 +21,10 @@ if [ -z "$SWIFT_PATH" ]; then
     exit 1
 fi
 
-LINUX_BIN="https://github.com/realm/SwiftLint/releases/download/0.61.0/swiftlint_linux_amd64.zip"
-LINUX_SHA="sha256:02f4f580bbb27fb618dbfa24ce2f14c926461c85c26941289f58340151b63ae4"
-DARWIN_BIN="https://github.com/realm/SwiftLint/releases/download/0.61.0/portable_swiftlint.zip"
-DARWIN_SHA="sha256:2342f3784307a02117e18f745fcd350c6acc6cab0e521c0c0e01c32a53a3b274"
+LINUX_BIN="https://github.com/realm/SwiftLint/releases/download/0.63.2/swiftlint_linux_amd64.zip"
+LINUX_SHA="sha256:dd1017cfd20a1457f264590bcb5875a6ee06cd75b9a9d4f77cd43a552499143b"
+DARWIN_BIN="https://github.com/realm/SwiftLint/releases/download/0.63.2/portable_swiftlint.zip"
+DARWIN_SHA="sha256:c59a405c85f95b92ced677a500804e081596a4cae4a6a485af76065557d6ed29"
 
 if [[ "$OSTYPE" == "darwin"* ]]; then
     EXPECTED_SHA="$DARWIN_SHA"