diff --git a/.github/workflows/docc_deploy.yml b/.github/workflows/docc_deploy.yml
index 784c08b..08aacb6 100644
--- a/.github/workflows/docc_deploy.yml
+++ b/.github/workflows/docc_deploy.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     container:
-      image: swift:6.2
+      image: swift:6.3
 
     steps:
       - name: Checkout repository
@@ -36,7 +36,7 @@ jobs:
           REPOSITORY_NAME: ${{ github.event.repository.name }}
         run: |
           curl --fail --show-error --location --silent \
-            https://raw.githubusercontent.com/BinaryBirds/github-workflows/refs/heads/main/scripts/generate-docc.sh \
+            https://raw.githubusercontent.com/BinaryBirds/github-workflows/0.2.0/scripts/generate-docc.sh \
             --output "$RUNNER_TEMP/generate-docc.sh"
           bash "$RUNNER_TEMP/generate-docc.sh" --name "$REPOSITORY_NAME"
 
diff --git a/.github/workflows/extra_soundness.yml b/.github/workflows/extra_soundness.yml
index 7283a35..059b0ea 100644
--- a/.github/workflows/extra_soundness.yml
+++ b/.github/workflows/extra_soundness.yml
@@ -22,7 +22,7 @@ on:
       run_tests_swift_versions:
         type: string
         description: "List of Swift versions to test with."
-        default: '["6.1", "6.2"]'
+        default: '["6.3", "6.4"]'
       swift_package_validation_enabled:
         type: boolean
         description: "Runs Swift package validation script (structure, settings, files). Defaults to false."
diff --git a/README.md b/README.md
index accd030..eb49dd6 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ This workflow provides Binary Birds-specific checks and testing alongside the st
 * **Optional Swift Headers Check**: Validates Swift source file headers using a strict 5-line format and respects `.swiftheaderignore`.
 * **Optional Swift Test Execution**: Runs tests with optional **`.build` caching** for efficiency.
 * **Optional Swift Package Validation**: Validates Swift package structure, settings, and conventions to ensure consistency.
-* **Multi-Version Support**: Tests across multiple Swift versions, configurable via input (defaulting to `["6.0", "6.1"]`).
+* **Multi-Version Support**: Tests across Swift 6.3 and newer, configurable via input (defaulting to `["6.3", "6.4"]`).
 * **SSH Support**: Includes steps to set up **SSH credentials** (via the `SSH_PRIVATE_KEY` secret) for projects relying on private Git dependencies.
 
 #### Workflow Inputs
@@ -38,7 +38,7 @@ This workflow provides Binary Birds-specific checks and testing alongside the st
 | `headers_check_enabled` | Enables Swift headers validation | `false` |
 | `run_tests_with_cache_enabled` | Enables the Swift test job | `false` |
 | `tests_cache_enabled` | Enables `.build` cache restore/save in the Swift test job | `true` |
-| `run_tests_swift_versions` | Swift versions to test | `["6.1","6.2"]` |
+| `run_tests_swift_versions` | Swift versions to test (6.3 minimum) | `["6.3","6.4"]` |
 | `swift_package_validation_enabled` | Runs Swift package validation in the repository. | `false` |
 
 #### Example Usage (Caller Repository)
@@ -52,7 +52,7 @@ jobs:
       headers_check_enabled: true
       run_tests_with_cache_enabled: true
       tests_cache_enabled: true
-      run_tests_swift_versions: '["6.1","6.2"]'
+      run_tests_swift_versions: '["6.3","6.4"]'
       swift_package_validation_enabled: true
 ```
 
@@ -60,7 +60,7 @@ jobs:
 
 This workflow handles the generation and deployment of DocC documentation:
 
-* **Builds DocC Documentation**: Uses a Swift 6.2 Docker image to build the documentation.
+* **Builds DocC Documentation**: Uses a Swift 6.3 Docker image to build the documentation.
 * **Deploys to GitHub Pages**: Uses `actions/deploy-pages@v6` to publish the results.
 * **Target Configuration**: Respects `.docctargetlist` if present.
 
@@ -591,7 +591,7 @@ Validates Swift package structure and configuration to enforce project-wide conv
 #### Behavior
 
 * Verifies Package.swift presence and Swift tools version
-* Ensures Swift tools version is 6.1 or newer
+* Ensures Swift tools version is 6.3 or newer
 * Requires defaultSwiftSettings usage on all targets
 * Enforces presence of the NonisolatedNonsendingByDefault Swift 6 concurrency feature
 * Validates the package manifest and target Swift settings
diff --git a/examples/tests.yml b/examples/tests.yml
index 9b48e73..7c0c46f 100644
--- a/examples/tests.yml
+++ b/examples/tests.yml
@@ -28,8 +28,9 @@ jobs:
     uses: swiftlang/github-workflows/.github/workflows/swift_package_test.yml@main
     with:
       enable_windows_checks : false
+      macos_xcode_versions: '["swift_6.3", "swift_6.4"]'
+      linux_swift_versions: '["6.3", "6.4"]'
       linux_build_command: "swift test --parallel --enable-code-coverage"
-      linux_exclude_swift_versions: "[{\"swift_version\": \"5.8\"}, {\"swift_version\": \"5.9\"}, {\"swift_version\": \"5.10\"}, {\"swift_version\": \"nightly\"}, {\"swift_version\": \"nightly-main\"}, {\"swift_version\": \"nightly-6.0\"}, {\"swift_version\": \"nightly-6.1\"}, {\"swift_version\": \"nightly-6.3\"}]"
 
   # For larger projects, we recommend running tests with caching enabled
   bb_checks:
@@ -40,4 +41,4 @@ jobs:
       run_tests_with_cache_enabled : true
       tests_cache_enabled : true
       headers_check_enabled : true
-      run_tests_swift_versions: '["6.1","6.2"]'
+      run_tests_swift_versions: '["6.3","6.4"]'
diff --git a/examples/tests_private.yml b/examples/tests_private.yml
index 2c9e964..6a84e32 100644
--- a/examples/tests_private.yml
+++ b/examples/tests_private.yml
@@ -33,12 +33,6 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-15]
-        include:
-          - os: ubuntu-latest
-            image:
-            - 'swift:6.0'
-          - os: macos-15
-            image: ''
     runs-on: ${{ matrix.os }}
 
     steps:
@@ -51,6 +45,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
 
+      - name: Set up Swift 6.3
+        uses: swift-actions/setup-swift@v2
+        with:
+          swift-version: '6.3'
+
       - name: Run Swift Tests
         shell: bash
         run: |
diff --git a/scripts/check-swift-package.sh b/scripts/check-swift-package.sh
index b5c5cda..c7fe0c2 100755
--- a/scripts/check-swift-package.sh
+++ b/scripts/check-swift-package.sh
@@ -49,10 +49,10 @@ if [ -n "$TOOLS_LINE" ]; then
     major="$(printf "%s" "$TOOLS_VERSION" | cut -d. -f1)"
     minor="$(printf "%s" "$TOOLS_VERSION" | cut -d. -f2)"
 
-    if [ "$major" -lt 6 ] || { [ "$major" -eq 6 ] && [ "$minor" -lt 1 ]; }; then
-        error "❌ swift-tools-version too old ($TOOLS_VERSION), expected >= 6.1"
+    if [ "$major" -lt 6 ] || { [ "$major" -eq 6 ] && [ "$minor" -lt 3 ]; }; then
+        error "❌ swift-tools-version too old ($TOOLS_VERSION), expected >= 6.3"
     else
-        log "✅ swift-tools-version >= 6.1 ($TOOLS_VERSION)"
+        log "✅ swift-tools-version >= 6.3 ($TOOLS_VERSION)"
     fi
 else
     error "❌ swift-tools-version missing"
diff --git a/tests/bats/check-local-swift-dependencies.bats b/tests/bats/check-local-swift-dependencies.bats
index 6f0649d..afd55d3 100755
--- a/tests/bats/check-local-swift-dependencies.bats
+++ b/tests/bats/check-local-swift-dependencies.bats
@@ -7,7 +7,7 @@ load 'helpers/test_helper.bash'
     copy_script_into_repo "$repo" "check-local-swift-dependencies.sh"
 
     cat >"$repo/Package.swift" <<'SWIFT'
-// swift-tools-version: 6.1
+// swift-tools-version: 6.3
 import PackageDescription
 
 let package = Package(
@@ -31,7 +31,7 @@ SWIFT
     copy_script_into_repo "$repo" "check-local-swift-dependencies.sh"
 
     cat >"$repo/Package.swift" <<'SWIFT'
-// swift-tools-version: 6.1
+// swift-tools-version: 6.3
 import PackageDescription
 
 let package = Package(
@@ -55,7 +55,7 @@ SWIFT
     copy_script_into_repo "$repo" "check-local-swift-dependencies.sh"
 
     cat >"$repo/Package.swift" <<'SWIFT'
-// swift-tools-version: 6.1
+// swift-tools-version: 6.3
 import PackageDescription
 
 let package = Package(
diff --git a/tests/bats/check-swift-headers.bats b/tests/bats/check-swift-headers.bats
index 4337eb5..8133687 100755
--- a/tests/bats/check-swift-headers.bats
+++ b/tests/bats/check-swift-headers.bats
@@ -202,7 +202,7 @@ EOF2
 
 @test "Package.swift is skipped even without header" {
     cat >"$TMPDIR/Package.swift" <<'EOF2'
-// swift-tools-version: 6.1
+// swift-tools-version: 6.3
 import PackageDescription
 
 let package = Package(
diff --git a/tests/bats/check-swift-package.bats b/tests/bats/check-swift-package.bats
index 0f0cfa2..1e898b6 100755
--- a/tests/bats/check-swift-package.bats
+++ b/tests/bats/check-swift-package.bats
@@ -27,7 +27,7 @@ EOF
 write_valid_package_swift() {
     local repo="$1"
     cat >"$repo/Package.swift" <<'EOF'
-// swift-tools-version: 6.1
+// swift-tools-version: 6.3
 import PackageDescription
 
 let defaultSwiftSettings: [SwiftSetting] = [
@@ -114,14 +114,14 @@ EOF
     [[ "$output" == *"Swift Package validation passed"* ]]
 }
 
-@test "check-swift-package fails when swift-tools-version is below 6.1" {
+@test "check-swift-package fails when swift-tools-version is below 6.3" {
     repo="$(make_temp_repo)"
     copy_script_into_repo "$repo" "check-swift-package.sh"
     setup_valid_swift_package_layout "$repo"
     write_valid_package_swift "$repo"
     install_swift_dump_stub_success "$repo"
 
-    sed -i.bak 's|// swift-tools-version: 6.1|// swift-tools-version: 5.9|' "$repo/Package.swift"
+    sed -i.bak 's|// swift-tools-version: 6.3|// swift-tools-version: 6.2|' "$repo/Package.swift"
     rm -f "$repo/Package.swift.bak"
 
     run bash -c "cd '$repo' && sh scripts/check-swift-package.sh"
@@ -148,7 +148,7 @@ EOF
     copy_script_into_repo "$repo" "check-swift-package.sh"
     setup_valid_swift_package_layout "$repo"
     cat >"$repo/Package.swift" <<'EOF'
-// swift-tools-version: 6.1
+// swift-tools-version: 6.3
 import PackageDescription
 
 let defaultSwiftSettings: [SwiftSetting] = [
diff --git a/tests/bats/docc-scripts.bats b/tests/bats/docc-scripts.bats
index c7cc757..fd670a4 100644
--- a/tests/bats/docc-scripts.bats
+++ b/tests/bats/docc-scripts.bats
@@ -7,7 +7,7 @@ load 'helpers/test_helper.bash'
     copy_script_into_repo "$repo" "generate-docc.sh"
 
     cat >"$repo/Package.swift" <<'SWIFT'
-// swift-tools-version: 6.1
+// swift-tools-version: 6.3
 import PackageDescription
 
 let package = Package(
@@ -56,7 +56,7 @@ STUB
     copy_script_into_repo "$repo" "generate-docc.sh"
 
     cat >"$repo/Package.swift" <<'SWIFT'
-// swift-tools-version: 6.1
+// swift-tools-version: 6.3
 import PackageDescription
 
 let package = Package(