diff --git a/.github/release.yml b/.github/release.yml
new file mode 100644
index 0000000..f96b514
--- /dev/null
+++ b/.github/release.yml
@@ -0,0 +1,14 @@
+changelog:
+  categories:
+    - title: SemVer Major
+      labels:
+        - ⚠️ semver/major
+    - title: SemVer Minor
+      labels:
+        - semver/minor
+    - title: SemVer Patch
+      labels:
+        - semver/patch
+    - title: Other Changes
+      labels:
+        - semver/none
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..fa1d4b0
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,18 @@
+name: Main
+
+on:
+  push:
+    branches: [main]
+  schedule:
+    - cron: "0 8,20 * * *"
+
+jobs:
+  unit-tests:
+    name: Unit tests
+    uses: apple/swift-nio/.github/workflows/unit_tests.yml@main
+    with:
+      linux_5_9_arguments_override: "--explicit-target-dependency-import-check error"
+      linux_5_10_arguments_override: --explicit-target-dependency-import-check error"
+      linux_6_0_arguments_override: "-Xswiftc -warnings-as-errors --explicit-target-dependency-import-check error -Xswiftc -require-explicit-sendable"
+      linux_nightly_6_0_arguments_override: "--explicit-target-dependency-import-check error -Xswiftc -require-explicit-sendable"
+      linux_nightly_main_arguments_override: "--explicit-target-dependency-import-check error -Xswiftc -require-explicit-sendable"
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
new file mode 100644
index 0000000..6215da3
--- /dev/null
+++ b/.github/workflows/pull_request.yml
@@ -0,0 +1,58 @@
+name: PR
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+jobs:
+  soundness:
+    name: Soundness
+    uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
+    with:
+      license_header_check_project_name: "swift-etcd-client-gsoc"
+
+  unit-tests:
+    name: Unit tests
+    uses: apple/swift-nio/.github/workflows/unit_tests.yml@main
+    with:
+      linux_5_9_arguments_override: "--explicit-target-dependency-import-check error"
+      linux_5_10_arguments_override: "--explicit-target-dependency-import-check error"
+      linux_6_0_arguments_override: "-Xswiftc -warnings-as-errors --explicit-target-dependency-import-check error -Xswiftc -require-explicit-sendable"
+      linux_nightly_6_0_arguments_override: "--explicit-target-dependency-import-check error -Xswiftc -require-explicit-sendable"
+      linux_nightly_main_arguments_override: "--explicit-target-dependency-import-check error -Xswiftc -require-explicit-sendable"
+
+  # Integration tests use a running etcd so this job uses a service container.
+  integration-tests:
+    name: Integration tests
+    runs-on: ubuntu-latest
+    services:
+      etcd:
+        image: quay.io/coreos/etcd:v3.5.6
+        env:
+          ETCD_ADVERTISE_CLIENT_URLS: http://0.0.0.0:2379
+          ETCD_LISTEN_CLIENT_URLS: http://0.0.0.0:2379
+          ETCD_INITIAL_CLUSTER_STATE: new
+        ports:
+          - 2379:2379
+    container:
+      image: swift:6.0-noble
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+      - name: Build package
+        run: swift build --build-tests
+      - name: Run integration tests
+        shell: bash  # explicitly choose bash, which ensures -o pipefail
+        run: swift test --filter "IntegrationTests" | tee test.out
+        env:
+          SWIFT_ETCD_CLIENT_INTEGRATION_TEST_ENABLED: true
+          ETCD_HOST: etcd
+          ETCD_PORT: 2379
+      - name: Check integration tests actually did run
+        run: test -r test.out && ! grep -i -e "executed 0 tests" -e "skipped" test.out
+
+  cxx-interop:
+    name: Cxx interop
+    uses: apple/swift-nio/.github/workflows/cxx_interop.yml@main
diff --git a/.github/workflows/pull_request_label.yml b/.github/workflows/pull_request_label.yml
new file mode 100644
index 0000000..8fd47c1
--- /dev/null
+++ b/.github/workflows/pull_request_label.yml
@@ -0,0 +1,18 @@
+name: PR label
+
+on:
+  pull_request:
+    types: [labeled, unlabeled, opened, reopened, synchronize]
+
+jobs:
+  semver-label-check:
+    name: Semantic version label check
+    runs-on: ubuntu-latest
+    timeout-minutes: 1
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+      - name: Check for Semantic Version label
+        uses: apple/swift-nio/.github/actions/pull_request_semver_label_checker@main
diff --git a/.licenseignore b/.licenseignore
new file mode 100644
index 0000000..2e49a7e
--- /dev/null
+++ b/.licenseignore
@@ -0,0 +1,40 @@
+.gitignore
+**/.gitignore
+.licenseignore
+.gitattributes
+.git-blame-ignore-revs
+.mailfilter
+.mailmap
+.spi.yml
+.swiftformat
+.swift-format
+.swiftformatignore
+.editorconfig
+.github/*
+*.md
+*.txt
+*.yml
+*.yaml
+*.json
+*.proto
+*.pb.swift
+*.grpc.swift
+Package.swift
+**/Package.swift
+Package@-*.swift
+**/Package@-*.swift
+Package.resolved
+**/Package.resolved
+Makefile
+*.modulemap
+**/*.modulemap
+**/*.docc/*
+*.xcprivacy
+**/*.xcprivacy
+*.symlink
+**/*.symlink
+Dockerfile
+**/Dockerfile
+Snippets/*
+dev/git.commit.template
+.unacceptablelanguageignore
diff --git a/Package.swift b/Package.swift
index 8b21c53..86cd67c 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version: 5.7
+// swift-tools-version: 5.9
 //===----------------------------------------------------------------------===//
 //
 // This source file is part of the swift-etcd-client-gsoc open source project
@@ -27,7 +27,7 @@ let package = Package(
         .library(
             name: "ETCD",
             targets: ["ETCD"]
-        ),
+        )
     ],
     dependencies: [
         .package(url: "https://github.com/apple/swift-nio.git", from: "2.56.0"),
@@ -59,3 +59,9 @@ let package = Package(
         ),
     ]
 )
+
+for target in package.targets {
+    var settings = target.swiftSettings ?? []
+    settings.append(.enableExperimentalFeature("StrictConcurrency=complete"))
+    target.swiftSettings = settings
+}
diff --git a/Sources/ETCD/DeleteRangeRequest.swift b/Sources/ETCD/DeleteRangeRequest.swift
index f831082..1d5346e 100644
--- a/Sources/ETCD/DeleteRangeRequest.swift
+++ b/Sources/ETCD/DeleteRangeRequest.swift
@@ -19,13 +19,13 @@ public struct DeleteRangeRequest {
     public var key: Data
     public var rangeEnd: Data?
     public var prevKV: Bool = false
-    
+
     init(protoDeleteRangeRequest: Etcdserverpb_DeleteRangeRequest) {
         self.key = protoDeleteRangeRequest.key
         self.rangeEnd = protoDeleteRangeRequest.rangeEnd.isEmpty ? nil : protoDeleteRangeRequest.rangeEnd
         self.prevKV = protoDeleteRangeRequest.prevKv
     }
-    
+
     /// Struct representing a deleteRangeRequest in etcd.
     ///
     /// - Parameters:
@@ -37,7 +37,7 @@ public struct DeleteRangeRequest {
         self.rangeEnd = rangeEnd
         self.prevKV = prevKV
     }
-    
+
     func toProto() -> Etcdserverpb_DeleteRangeRequest {
         var protoDeleteRangeRequest = Etcdserverpb_DeleteRangeRequest()
         protoDeleteRangeRequest.key = self.key
diff --git a/Sources/ETCD/ETCDClient.swift b/Sources/ETCD/ETCDClient.swift
index 1ba08cc..6072031 100644
--- a/Sources/ETCD/ETCDClient.swift
+++ b/Sources/ETCD/ETCDClient.swift
@@ -110,7 +110,10 @@ public final class EtcdClient: @unchecked Sendable {
     /// - Parameters:
     ///   - key: The key for which the value is watched. Parameter is of type Sequence<UInt8>.
     ///   - operation: The operation to be run on the WatchAsyncSequence for the key.
-    public func watch<Result>(_ key: some Sequence<UInt8>, _ operation: (WatchAsyncSequence) async throws -> Result) async throws -> Result {
+    public func watch<Result>(
+        _ key: some Sequence<UInt8>,
+        _ operation: (WatchAsyncSequence) async throws -> Result
+    ) async throws -> Result {
         let request = [Etcdserverpb_WatchRequest.with { $0.createRequest.key = Data(key) }]
         let watchAsyncSequence = WatchAsyncSequence(grpcAsyncSequence: watchClient.watch(request))
         return try await operation(watchAsyncSequence)
@@ -121,7 +124,10 @@ public final class EtcdClient: @unchecked Sendable {
     /// - Parameters:
     ///   - key: The key for which the value is watched. Parameter is of type String.
     ///   - operation: The operation to be run on the WatchAsyncSequence for the key.
-    public func watch<Result>(_ key: String, _ operation: (WatchAsyncSequence) async throws -> Result) async throws -> Result {
+    public func watch<Result>(
+        _ key: String,
+        _ operation: (WatchAsyncSequence) async throws -> Result
+    ) async throws -> Result {
         try await watch(key.utf8, operation)
     }
 }
diff --git a/Sources/ETCDExample/ETCDExample.swift b/Sources/ETCDExample/ETCDExample.swift
index 9b5eef0..5ee22d3 100644
--- a/Sources/ETCDExample/ETCDExample.swift
+++ b/Sources/ETCDExample/ETCDExample.swift
@@ -1,5 +1,3 @@
-import Dispatch
-
 //===----------------------------------------------------------------------===//
 //
 // This source file is part of the swift-etcd-client-gsoc open source project
@@ -13,6 +11,8 @@ import Dispatch
 // SPDX-License-Identifier: Apache-2.0
 //
 //===----------------------------------------------------------------------===//
+
+import Dispatch
 import ETCD
 import NIO
 
diff --git a/Tests/ETCDTests/ETCDTests.swift b/Tests/IntegrationTests/IntegrationTests.swift
similarity index 76%
rename from Tests/ETCDTests/ETCDTests.swift
rename to Tests/IntegrationTests/IntegrationTests.swift
index 178d925..16918f3 100644
--- a/Tests/ETCDTests/ETCDTests.swift
+++ b/Tests/IntegrationTests/IntegrationTests.swift
@@ -1,6 +1,3 @@
-import ETCD
-import NIO
-
 //===----------------------------------------------------------------------===//
 //
 // This source file is part of the swift-etcd-client-gsoc open source project
@@ -14,18 +11,22 @@ import NIO
 // SPDX-License-Identifier: Apache-2.0
 //
 //===----------------------------------------------------------------------===//
+
+import ETCD
+import NIO
 import XCTest
 
-final class EtcdClientTests: XCTestCase {
-    var eventLoopGroup: EventLoopGroup!
-    var etcdClient: EtcdClient!
+final class IntegrationTests: XCTestCase {
+
+    private static let integrationTestEnabled = getBoolEnv("SWIFT_ETCD_CLIENT_INTEGRATION_TEST_ENABLED") ?? false
 
     override func setUp() async throws {
-        eventLoopGroup = MultiThreadedEventLoopGroup.singleton
-        etcdClient = EtcdClient(host: "localhost", port: 2379, eventLoopGroup: eventLoopGroup)
+        try XCTSkipUnless(Self.integrationTestEnabled)
     }
 
     func testSetAndGetStringValue() async throws {
+        let etcdClient = EtcdClient.testClient
+
         try await etcdClient.set("testKey", value: "testValue")
         let key = "testKey".data(using: .utf8)!
         let rangeRequest = RangeRequest(key: key)
@@ -36,6 +37,8 @@ final class EtcdClientTests: XCTestCase {
     }
 
     func testGetNonExistentKey() async throws {
+        let etcdClient = EtcdClient.testClient
+
         let key = "nonExistentKey".data(using: .utf8)!
         let rangeRequest = RangeRequest(key: key)
         let result = try await etcdClient.getRange(rangeRequest)
@@ -43,6 +46,8 @@ final class EtcdClientTests: XCTestCase {
     }
 
     func testDeleteKeyExists() async throws {
+        let etcdClient = EtcdClient.testClient
+
         let key = "testKey"
         let value = "testValue"
         try await etcdClient.set(key, value: value)
@@ -54,12 +59,14 @@ final class EtcdClientTests: XCTestCase {
 
         let deleteRangeRequest = DeleteRangeRequest(key: rangeRequestKey)
         try await etcdClient.deleteRange(deleteRangeRequest)
-        
+
         fetchedValue = try await etcdClient.getRange(rangeRequest)
         XCTAssertNil(fetchedValue)
     }
 
     func testDeleteNonExistentKey() async throws {
+        let etcdClient = EtcdClient.testClient
+
         let key = "testKey".data(using: .utf8)!
         let rangeRequest = RangeRequest(key: key)
 
@@ -68,12 +75,14 @@ final class EtcdClientTests: XCTestCase {
 
         let deleteRangeRequest = DeleteRangeRequest(key: key)
         try await etcdClient.deleteRange(deleteRangeRequest)
-        
+
         fetchedValue = try await etcdClient.getRange(rangeRequest)
         XCTAssertNil(fetchedValue)
     }
 
     func testUpdateExistingKey() async throws {
+        let etcdClient = EtcdClient.testClient
+
         let key = "testKey"
         let value = "testValue"
         try await etcdClient.set(key, value: value)
@@ -95,6 +104,8 @@ final class EtcdClientTests: XCTestCase {
     }
 
     func testWatch() async throws {
+        let etcdClient = EtcdClient.testClient
+
         let key = "testKey"
         let value = "testValue".data(using: .utf8)!
 
@@ -102,7 +113,7 @@ final class EtcdClientTests: XCTestCase {
 
         try await withThrowingTaskGroup(of: Void.self) { group in
             group.addTask {
-                try await self.etcdClient.watch(key) { watchAsyncSequence in
+                try await etcdClient.watch(key) { watchAsyncSequence in
                     var iterator = watchAsyncSequence.makeAsyncIterator()
                     let events = try await iterator.next()
                     guard let events = events else {
@@ -122,8 +133,27 @@ final class EtcdClientTests: XCTestCase {
             }
 
             try await Task.sleep(nanoseconds: 1_000_000_000)
-            try await self.etcdClient.put(key, value: String(data: value, encoding: .utf8)!)
+            try await etcdClient.put(key, value: String(data: value, encoding: .utf8)!)
             group.cancelAll()
         }
     }
 }
+
+extension EtcdClient {
+    fileprivate static let testClient = EtcdClient(
+        host: ProcessInfo.processInfo.environment["ETCD_HOST"] ?? "localhost",
+        port: getIntEnv("ETCD_PORT") ?? 2379,
+        eventLoopGroup: .singletonMultiThreadedEventLoopGroup
+    )
+}
+
+/// Returns true if `key` is a truthy string, otherwise returns false.
+private func getBoolEnv(_ key: String) -> Bool? {
+    switch ProcessInfo.processInfo.environment[key]?.lowercased() {
+    case .none: return nil
+    case "true", "y", "yes", "on", "1": return true
+    default: return false
+    }
+}
+
+private func getIntEnv(_ key: String) -> Int? { ProcessInfo.processInfo.environment[key].flatMap(Int.init(_:)) }
diff --git a/scripts/generate_contributors_list.sh b/scripts/generate_contributors_list.sh
deleted file mode 100755
index c90c5ed..0000000
--- a/scripts/generate_contributors_list.sh
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/bin/bash
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the swift-etcd-client-gsoc open source project
-##
-## Copyright (c) 2024 Apple Inc. and the swift-etcd-client-gsoc project authors
-## Licensed under Apache License v2.0
-##
-## See LICENSE.txt for license information
-## See CONTRIBUTORS.txt for the list of swift-etcd-client-gsoc project authors
-##
-## SPDX-License-Identifier: Apache-2.0
-##
-##===----------------------------------------------------------------------===##
-
-set -eu
-here="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-contributors=$( cd "$here"/.. && git shortlog -es | cut -f2 | sed 's/^/- /' )
-
-cat > "$here/../CONTRIBUTORS.txt" <<- EOF
-	For the purpose of tracking copyright, this is the list of individuals and
-	organizations who have contributed source code to swift-etcd-client-gsoc.
-
-	For employees of an organization/company where the copyright of work done
-	by employees of that company is held by the company itself, only the company
-	needs to be listed here.
-
-	## COPYRIGHT HOLDERS
-
-	- Apple Inc. (all contributors with '@apple.com')
-
-	### Contributors
-
-	$contributors
-
-	**Updating this list**
-
-	Please do not edit this file manually. It is generated using \`./scripts/generate_contributors_list.sh\`. If a name is misspelled or appearing multiple times: add an entry in \`./.mailmap\`
-EOF
diff --git a/scripts/run-swift-format.sh b/scripts/run-swift-format.sh
deleted file mode 100755
index 17aa008..0000000
--- a/scripts/run-swift-format.sh
+++ /dev/null
@@ -1,66 +0,0 @@
-#!/bin/bash
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the swift-etcd-client-gsoc open source project
-##
-## Copyright (c) 2024 Apple Inc. and the swift-etcd-client-gsoc project authors
-## Licensed under Apache License v2.0
-##
-## See LICENSE.txt for license information
-## See CONTRIBUTORS.txt for the list of swift-etcd-client-gsoc project authors
-##
-## SPDX-License-Identifier: Apache-2.0
-##
-##===----------------------------------------------------------------------===##
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the SwiftCertificates open source project
-##
-## Copyright (c) 2023 Apple Inc. and the SwiftCertificates project authors
-## Licensed under Apache License v2.0
-##
-## See LICENSE.txt for license information
-## See CONTRIBUTORS.txt for the list of SwiftCertificates project authors
-##
-## SPDX-License-Identifier: Apache-2.0
-##
-##===----------------------------------------------------------------------===##
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the SwiftOpenAPIGenerator open source project
-##
-## Copyright (c) 2023 Apple Inc. and the SwiftOpenAPIGenerator project authors
-## Licensed under Apache License v2.0
-##
-## See LICENSE.txt for license information
-## See CONTRIBUTORS.txt for the list of SwiftOpenAPIGenerator project authors
-##
-## SPDX-License-Identifier: Apache-2.0
-##
-##===----------------------------------------------------------------------===##
-set -euo pipefail
-
-function log() { printf -- "** %s\n" "$*" >&2; }
-function error() { printf -- "** ERROR: %s\n" "$*" >&2; }
-function fatal() { error "$*"; exit 1; }
-
-current_script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-repo_root="$(git -C "${current_script_dir}" rev-parse --show-toplevel)"
-
-swift format lint \
-  --parallel --recursive --strict \
-  "${repo_root}/Sources" "${repo_root}/Tests" \
-  "${repo_root}/Benchmarks/Benchmarks" \
-  && swift_format_rc=$? || swift_format_rc=$?
-
-if [[ "${swift_format_rc}" -ne 0 ]]; then
-  fatal "❌ Running swift-format produced errors.
-
-  To fix, run the following command:
-
-    % swift format format --parallel --recursive --in-place Sources Tests Benchmarks/Benchmarks
-  "
-  exit "${swift_format_rc}"
-fi
-
-log "✅ Ran swift-format with no errors."
diff --git a/scripts/soundness.sh b/scripts/soundness.sh
deleted file mode 100755
index 45171f9..0000000
--- a/scripts/soundness.sh
+++ /dev/null
@@ -1,175 +0,0 @@
-#!/bin/bash
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the swift-etcd-client-gsoc open source project
-##
-## Copyright (c) 2023 Apple Inc. and the swift-etcd-client-gsoc project authors
-## Licensed under Apache License v2.0
-##
-## See LICENSE.txt for license information
-## See CONTRIBUTORS.txt for the list of swift-etcd-client-gsoc project authors
-##
-## SPDX-License-Identifier: Apache-2.0
-##
-##===----------------------------------------------------------------------===##
-
-set -eu
-here="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-
-function replace_acceptable_years() {
-    # this needs to replace all acceptable forms with 'YEARS'
-    sed -e 's/20[12][78901234]-20[12][8901234]/YEARS/' -e 's/20[12][8901234]/YEARS/'
-}
-
-printf "=> Checking for unacceptable language... "
-# This greps for unacceptable terminology. The square bracket[s] are so that
-# "git grep" doesn't find the lines that greps :).
-unacceptable_terms=(
-    -e blacklis[t]
-    -e whitelis[t]
-    -e slav[e]
-    -e sanit[y]
-)
-
-# We have to exclude the code of conduct because it gives examples of unacceptable language.
-exclude_files=(
-    CODE_OF_CONDUCT.md
-)
-for word in "${exclude_files[@]}"; do
-    exclude_files+=(":(exclude)$word")
-done
-exclude_files_str=$(printf " %s" "${exclude_files[@]}")
-
-if git grep --color=never -i "${unacceptable_terms[@]}" -- . $exclude_files_str > /dev/null; then
-    printf "\033[0;31mUnacceptable language found.\033[0m\n"
-    git grep -i "${unacceptable_terms[@]}" -- . $exclude_files_str
-    exit 1
-fi
-printf "\033[0;32mokay.\033[0m\n"
-
-printf "=> Checking format... "
-# swift-format
-swift_format_script="${here}/run-swift-format.sh"
-if ! bash "${swift_format_script}"; then
-   exit 1
-fi
-
-
-printf "=> Checking license headers... "
-tmp=$(mktemp /tmp/.swift-etcd-client-gsoc-soundness_XXXXXX)
-
-for language in swift-or-c bash dtrace python; do
-  declare -a matching_files
-  declare -a exceptions
-  expections=( )
-  matching_files=( -name '*' )
-  case "$language" in
-      swift-or-c)
-        exceptions=( -name Package.swift )
-        matching_files=( -name '*.swift' -o -name '*.c' -o -name '*.h' )
-        cat > "$tmp" <<"EOF"
-//===----------------------------------------------------------------------===//
-//
-// This source file is part of the swift-etcd-client-gsoc open source project
-//
-// Copyright (c) YEARS Apple Inc. and the swift-etcd-client-gsoc project authors
-// Licensed under Apache License v2.0
-//
-// See LICENSE.txt for license information
-// See CONTRIBUTORS.txt for the list of swift-etcd-client-gsoc project authors
-//
-// SPDX-License-Identifier: Apache-2.0
-//
-//===----------------------------------------------------------------------===//
-EOF
-        ;;
-      bash)
-        matching_files=( -name '*.sh' )
-        cat > "$tmp" <<"EOF"
-#!/bin/bash
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the swift-etcd-client-gsoc open source project
-##
-## Copyright (c) YEARS Apple Inc. and the swift-etcd-client-gsoc project authors
-## Licensed under Apache License v2.0
-##
-## See LICENSE.txt for license information
-## See CONTRIBUTORS.txt for the list of swift-etcd-client-gsoc project authors
-##
-## SPDX-License-Identifier: Apache-2.0
-##
-##===----------------------------------------------------------------------===##
-EOF
-      ;;
-      python)
-        matching_files=( -name '*.py' )
-        cat > "$tmp" <<"EOF"
-#!/usr/bin/env python3
-##===----------------------------------------------------------------------===##
-##
-## This source file is part of the swift-etcd-client-gsoc open source project
-##
-## Copyright (c) YEARS Apple Inc. and the swift-etcd-client-gsoc project authors
-## Licensed under Apache License v2.0
-##
-## See LICENSE.txt for license information
-## See CONTRIBUTORS.txt for the list of swift-etcd-client-gsoc project authors
-##
-## SPDX-License-Identifier: Apache-2.0
-##
-##===----------------------------------------------------------------------===##
-EOF
-      ;;
-      dtrace)
-        matching_files=( -name '*.d' )
-        cat > "$tmp" <<"EOF"
-#!/usr/sbin/dtrace -q -s
-/*===----------------------------------------------------------------------===*
- *
- *  This source file is part of the swift-etcd-client-gsoc open source project
- *
- *  Copyright (c) YEARS Apple Inc. and the swift-etcd-client-gsoc project authors
- *  Licensed under Apache License v2.0
- *
- *  See LICENSE.txt for license information
- *  See CONTRIBUTORS.txt for the list of swift-etcd-client-gsoc project authors
- *
- *  SPDX-License-Identifier: Apache-2.0
- *
- *===----------------------------------------------------------------------===*/
-EOF
-      ;;
-    *)
-      echo >&2 "ERROR: unknown language '$language'"
-      ;;
-  esac
-
-  expected_lines=$(cat "$tmp" | wc -l)
-  expected_sha=$(cat "$tmp" | shasum)
-
-  (
-    cd "$here/.."
-    {
-        find . \
-            \( \! -path '*/.build/*' -a \
-            \( "${matching_files[@]}" \) -a \
-            \( \! \( "${exceptions[@]}" \) \) \)
-
-        if [[ "$language" = bash ]]; then
-            # add everything with a shell shebang too
-            git grep --full-name -l '#!/bin/bash'
-            git grep --full-name -l '#!/bin/sh'
-        fi
-    } | while read line; do
-      if [[ "$(cat "$line" | replace_acceptable_years | head -n $expected_lines | shasum)" != "$expected_sha" ]]; then
-        printf "\033[0;31mmissing headers in file '$line'!\033[0m\n"
-        diff -u <(cat "$line" | replace_acceptable_years | head -n $expected_lines) "$tmp"
-        exit 1
-      fi
-    done
-    printf "\033[0;32mokay.\033[0m\n"
-  )
-done
-
-rm "$tmp"