diff --git a/Package.swift b/Package.swift
index 50eec46..be6d235 100644
--- a/Package.swift
+++ b/Package.swift
@@ -49,11 +49,11 @@ let package = Package(
     dependencies: [
         .package(
             url: "https://github.com/apple/swift-http-api-proposal.git",
-            revision: "140b8c2aa773514e2464c15db8d94f4eca46d4a1"
+            revision: "d58fd6fa157e08bff44aa360ff83ebd424783392"
         ),
         .package(
             url: "https://github.com/apple/swift-async-algorithms.git",
-            from: "1.1.4",
+            revision: "3bd2de010e30f8d41481e6c7a49a7e7222a878cf",
             traits: ["UnstableAsyncStreaming"]
         ),
         .package(url: "https://github.com/apple/swift-http-types.git", from: "1.0.0"),
diff --git a/Sources/Example/Example.swift b/Sources/Example/Example.swift
index 25c3e67..d7b3bc8 100644
--- a/Sources/Example/Example.swift
+++ b/Sources/Example/Example.swift
@@ -22,7 +22,7 @@ import NIOHTTPServer
 import X509
 
 @main
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 struct Example {
     static func main() async throws {
         try await serve()
diff --git a/Sources/NIOHTTPServer/Configuration/NIOHTTPServer+SwiftConfiguration.swift b/Sources/NIOHTTPServer/Configuration/NIOHTTPServer+SwiftConfiguration.swift
index 79d4bbe..11dcdbb 100644
--- a/Sources/NIOHTTPServer/Configuration/NIOHTTPServer+SwiftConfiguration.swift
+++ b/Sources/NIOHTTPServer/Configuration/NIOHTTPServer+SwiftConfiguration.swift
@@ -20,7 +20,7 @@ import NIOHTTP2
 import SwiftASN1
 public import X509
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration {
     /// Initialize the server configuration from a config reader.
     ///
@@ -110,7 +110,7 @@ extension NIOHTTPServerConfiguration {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.BindTarget {
     /// Initialize a bind target configuration from a config reader.
     ///
@@ -134,7 +134,7 @@ private enum HTTPVersionKind: String {
     case http2
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension Set where Element == NIOHTTPServerConfiguration.HTTPVersion {
     /// Initialize a supported HTTP versions configuration from a config reader.
     ///
@@ -171,7 +171,7 @@ extension Set where Element == NIOHTTPServerConfiguration.HTTPVersion {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.TransportSecurity {
     /// Initialize a transport security configuration from a config reader.
     ///
@@ -242,7 +242,7 @@ extension NIOHTTPServerConfiguration.TransportSecurity {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.TransportSecurity.TLSCredentials {
     /// Initialize TLS credentials (certificate chain and private key) from a config reader.
     ///
@@ -288,7 +288,7 @@ extension NIOHTTPServerConfiguration.TransportSecurity.TLSCredentials {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.TransportSecurity.MTLSTrustConfiguration {
     /// Initialize an mTLS trust configuration from a config reader.
     ///
@@ -360,7 +360,7 @@ extension NIOHTTPServerConfiguration.TransportSecurity.MTLSTrustConfiguration {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.BackPressureStrategy {
     /// Initialize the backpressure strategy configuration from a config reader.
     ///
@@ -387,7 +387,7 @@ extension NIOHTTPServerConfiguration.BackPressureStrategy {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.HTTP2 {
     /// Initialize a HTTP/2 configuration from a config reader.
     ///
@@ -420,7 +420,7 @@ extension NIOHTTPServerConfiguration.HTTP2 {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.HTTP2.GracefulShutdownConfiguration {
     /// Initialize a HTTP/2 graceful shutdown configuration from a config reader.
     ///
@@ -436,7 +436,7 @@ extension NIOHTTPServerConfiguration.HTTP2.GracefulShutdownConfiguration {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension Set where Element == NIOHTTPServerConfiguration.HTTPVersion {
     fileprivate enum HTTPVersionKind: String {
         case http1_1
@@ -444,7 +444,7 @@ extension Set where Element == NIOHTTPServerConfiguration.HTTPVersion {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.TransportSecurity {
     fileprivate enum TransportSecurityMode: String {
         case plaintext
@@ -458,7 +458,7 @@ extension NIOHTTPServerConfiguration.TransportSecurity {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.TransportSecurity.MTLSTrustConfiguration {
     /// The supported sources for trust roots.
     fileprivate enum TrustRootsSource: String {
@@ -475,7 +475,7 @@ extension NIOHTTPServerConfiguration.TransportSecurity.MTLSTrustConfiguration {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension CertificateVerificationMode {
     fileprivate init(_ mode: NIOHTTPServerConfiguration.TransportSecurity.MTLSTrustConfiguration.VerificationMode) {
         switch mode {
diff --git a/Sources/NIOHTTPServer/Configuration/NIOHTTPServerConfiguration.swift b/Sources/NIOHTTPServer/Configuration/NIOHTTPServerConfiguration.swift
index d39e39c..d2c7f56 100644
--- a/Sources/NIOHTTPServer/Configuration/NIOHTTPServerConfiguration.swift
+++ b/Sources/NIOHTTPServer/Configuration/NIOHTTPServerConfiguration.swift
@@ -20,7 +20,7 @@ public import X509
 ///
 /// This structure contains all the necessary configuration options for setting up
 /// and running ``NIOHTTPServer``, including network binding and TLS settings.
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 public struct NIOHTTPServerConfiguration: Sendable {
     /// Specifies where the server should bind and listen for incoming connections.
     ///
@@ -303,7 +303,7 @@ public struct NIOHTTPServerConfiguration: Sendable {
 ///
 /// Indicates whether certificate verification succeeded or failed, and provides associated metadata when verification
 /// is successful.
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 public enum CertificateVerificationResult: Sendable, Hashable {
     /// Metadata resulting from successful certificate verification.
     public struct VerificationMetadata: Sendable, Hashable {
@@ -367,7 +367,7 @@ public struct CertificateVerificationMode: Sendable {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOSSL.CertificateVerification {
     /// Maps ``CertificateVerificationMode`` to the NIOSSL representation.
     init(_ verificationMode: CertificateVerificationMode) {
@@ -380,7 +380,7 @@ extension NIOSSL.CertificateVerification {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration {
     /// Represents an HTTP version.
     public struct HTTPVersion: Sendable, Hashable {
@@ -438,7 +438,7 @@ extension NIOHTTPServerConfiguration {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOAsyncSequenceProducerBackPressureStrategies.HighLowWatermark {
     init(_ backpressureStrategy: NIOHTTPServerConfiguration.BackPressureStrategy) {
         switch backpressureStrategy.backing {
@@ -448,7 +448,7 @@ extension NIOAsyncSequenceProducerBackPressureStrategies.HighLowWatermark {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension Set where Element == NIOHTTPServerConfiguration.HTTPVersion {
     /// The ALPN protocol identifiers to advertise during the TLS handshake, derived from the supported HTTP versions.
     ///
diff --git a/Sources/NIOHTTPServer/Configuration/TransportSecurity+MTLSTrustConfiguration.swift b/Sources/NIOHTTPServer/Configuration/TransportSecurity+MTLSTrustConfiguration.swift
index 62ad9dc..4e5fec7 100644
--- a/Sources/NIOHTTPServer/Configuration/TransportSecurity+MTLSTrustConfiguration.swift
+++ b/Sources/NIOHTTPServer/Configuration/TransportSecurity+MTLSTrustConfiguration.swift
@@ -16,7 +16,7 @@ import NIOCore
 import NIOSSL
 public import X509
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.TransportSecurity {
     /// Configures how the server verifies client certificates during mTLS.
     public struct MTLSTrustConfiguration: Sendable {
diff --git a/Sources/NIOHTTPServer/Configuration/TransportSecurity+NIOSSL.swift b/Sources/NIOHTTPServer/Configuration/TransportSecurity+NIOSSL.swift
index 50692f0..87154de 100644
--- a/Sources/NIOHTTPServer/Configuration/TransportSecurity+NIOSSL.swift
+++ b/Sources/NIOHTTPServer/Configuration/TransportSecurity+NIOSSL.swift
@@ -16,7 +16,7 @@ import NIOCertificateReloading
 import NIOSSL
 import X509
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOSSL.TLSConfiguration {
     /// Creates a `NIOSSL.TLSConfiguration` from the server's TLS credentials and mTLS trust configuration.
     static func makeServerConfiguration(
diff --git a/Sources/NIOHTTPServer/Configuration/TransportSecurity+TLSCredentials.swift b/Sources/NIOHTTPServer/Configuration/TransportSecurity+TLSCredentials.swift
index 2928635..735913e 100644
--- a/Sources/NIOHTTPServer/Configuration/TransportSecurity+TLSCredentials.swift
+++ b/Sources/NIOHTTPServer/Configuration/TransportSecurity+TLSCredentials.swift
@@ -15,7 +15,7 @@
 public import NIOCertificateReloading
 public import X509
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServerConfiguration.TransportSecurity {
     /// Represents the server's TLS credentials: a certificate chain and its corresponding private key.
     ///
diff --git a/Sources/NIOHTTPServer/HTTPKeepAliveHandler.swift b/Sources/NIOHTTPServer/HTTPKeepAliveHandler.swift
index c51636c..4647f6b 100644
--- a/Sources/NIOHTTPServer/HTTPKeepAliveHandler.swift
+++ b/Sources/NIOHTTPServer/HTTPKeepAliveHandler.swift
@@ -37,7 +37,7 @@ import NIOHTTPTypes
 ///
 /// Informational (1xx) responses pass through unchanged and do not affect buffering
 /// state.
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 final class HTTPKeepAliveHandler: ChannelDuplexHandler {
     typealias InboundIn = HTTPRequestPart
     typealias InboundOut = HTTPRequestPart
diff --git a/Sources/NIOHTTPServer/HTTPRequestConcludingAsyncReader.swift b/Sources/NIOHTTPServer/HTTPRequestConcludingAsyncReader.swift
index d3d609c..40e4b3b 100644
--- a/Sources/NIOHTTPServer/HTTPRequestConcludingAsyncReader.swift
+++ b/Sources/NIOHTTPServer/HTTPRequestConcludingAsyncReader.swift
@@ -27,7 +27,7 @@ import Synchronization
 /// and concluding with the HTTP trailer fields received at the end of the request. This type
 /// follows the ``ConcludingAsyncReader`` pattern, which allows for asynchronous consumption of
 /// a stream with a conclusive final element.
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 public struct HTTPRequestConcludingAsyncReader: ConcludingAsyncReader, ~Copyable {
     /// A reader for HTTP request body chunks that implements the ``AsyncReader`` protocol.
     ///
diff --git a/Sources/NIOHTTPServer/HTTPResponseConcludingAsyncWriter.swift b/Sources/NIOHTTPServer/HTTPResponseConcludingAsyncWriter.swift
index 7e36128..97ddf01 100644
--- a/Sources/NIOHTTPServer/HTTPResponseConcludingAsyncWriter.swift
+++ b/Sources/NIOHTTPServer/HTTPResponseConcludingAsyncWriter.swift
@@ -29,7 +29,7 @@ import Synchronization
 ///
 /// This writer is designed to work with HTTP responses where the body is streamed in chunks
 /// and potentially followed by trailer fields.
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 public struct HTTPResponseConcludingAsyncWriter: ConcludingAsyncWriter, ~Copyable {
     /// A writer for HTTP response body chunks that implements the ``AsyncWriter`` protocol.
     ///
diff --git a/Sources/NIOHTTPServer/NIOHTTPServer+ConnectionContext.swift b/Sources/NIOHTTPServer/NIOHTTPServer+ConnectionContext.swift
index 5f51b67..38fcfe2 100644
--- a/Sources/NIOHTTPServer/NIOHTTPServer+ConnectionContext.swift
+++ b/Sources/NIOHTTPServer/NIOHTTPServer+ConnectionContext.swift
@@ -16,7 +16,7 @@ import NIOCore
 import NIOSSL
 public import X509
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer {
     /// Connection-specific information available during request handling.
     ///
diff --git a/Sources/NIOHTTPServer/NIOHTTPServer+HTTP1_1.swift b/Sources/NIOHTTPServer/NIOHTTPServer+HTTP1_1.swift
index c7444c0..625078a 100644
--- a/Sources/NIOHTTPServer/NIOHTTPServer+HTTP1_1.swift
+++ b/Sources/NIOHTTPServer/NIOHTTPServer+HTTP1_1.swift
@@ -21,7 +21,7 @@ import NIOHTTPTypes
 import NIOHTTPTypesHTTP1
 import NIOPosix
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer {
     /// Serves incoming plaintext HTTP/1.1 connections.
     ///
diff --git a/Sources/NIOHTTPServer/NIOHTTPServer+ListeningAddress.swift b/Sources/NIOHTTPServer/NIOHTTPServer+ListeningAddress.swift
index 8d2b66f..f3462c9 100644
--- a/Sources/NIOHTTPServer/NIOHTTPServer+ListeningAddress.swift
+++ b/Sources/NIOHTTPServer/NIOHTTPServer+ListeningAddress.swift
@@ -35,7 +35,7 @@ enum ListeningAddressError: CustomStringConvertible, Error {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer {
     func addressesBound(_ addresses: [NIOCore.SocketAddress?]) throws {
         switch self.listeningAddressState.withLockedValue({ $0.addressesBound(addresses) }) {
@@ -63,7 +63,7 @@ extension NIOHTTPServer {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer {
     enum State {
         case idle(EventLoopPromise<[SocketAddress]>)
@@ -131,7 +131,7 @@ extension NIOHTTPServer {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer.SocketAddress {
     fileprivate init(_ address: NIOCore.SocketAddress?) throws(ListeningAddressError) {
         guard let address, let port = address.port else {
diff --git a/Sources/NIOHTTPServer/NIOHTTPServer+SecureUpgrade.swift b/Sources/NIOHTTPServer/NIOHTTPServer+SecureUpgrade.swift
index 8e38c28..0fd8451 100644
--- a/Sources/NIOHTTPServer/NIOHTTPServer+SecureUpgrade.swift
+++ b/Sources/NIOHTTPServer/NIOHTTPServer+SecureUpgrade.swift
@@ -28,7 +28,7 @@ import NIOSSL
 import NIOTLS
 import X509
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer {
     typealias NegotiatedChannel = NIONegotiatedHTTPVersion<
         NIOAsyncChannel<HTTPRequestPart, HTTPResponsePart>,
@@ -354,7 +354,7 @@ extension NIOHTTPServer {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer {
     func makeSSLServerHandler(
         _ tlsConfiguration: TLSConfiguration,
diff --git a/Sources/NIOHTTPServer/NIOHTTPServer.swift b/Sources/NIOHTTPServer/NIOHTTPServer.swift
index 454b381..cac5e8f 100644
--- a/Sources/NIOHTTPServer/NIOHTTPServer.swift
+++ b/Sources/NIOHTTPServer/NIOHTTPServer.swift
@@ -79,7 +79,7 @@ import X509
 ///     }
 /// }
 /// ```
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 public struct NIOHTTPServer: HTTPServer {
     public typealias RequestConcludingReader = HTTPRequestConcludingAsyncReader
     public typealias ResponseConcludingWriter = HTTPResponseConcludingAsyncWriter
@@ -330,7 +330,7 @@ public struct NIOHTTPServer: HTTPServer {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTP2Handler.Configuration {
     init(httpServerHTTP2Configuration http2Config: NIOHTTPServerConfiguration.HTTP2) {
         let clampedTargetWindowSize = Self.clampTargetWindowSize(http2Config.targetWindowSize)
diff --git a/Sources/NIOHTTPServer/ServerChannel.swift b/Sources/NIOHTTPServer/ServerChannel.swift
index 3cb81ee..339be9a 100644
--- a/Sources/NIOHTTPServer/ServerChannel.swift
+++ b/Sources/NIOHTTPServer/ServerChannel.swift
@@ -15,7 +15,7 @@
 import NIOCore
 import NIOHTTPTypes
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer {
     /// Abstracts over the two types of server channels ``NIOHTTPServer`` can create: plaintext HTTP/1.1 and Secure
     /// Upgrade.
diff --git a/Sources/NIOHTTPServer/SocketAddress.swift b/Sources/NIOHTTPServer/SocketAddress.swift
index 98ecc73..3e2384d 100644
--- a/Sources/NIOHTTPServer/SocketAddress.swift
+++ b/Sources/NIOHTTPServer/SocketAddress.swift
@@ -12,7 +12,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer {
     /// Represents an IPv4 address.
     public struct IPv4: Hashable, Sendable {
diff --git a/Tests/NIOHTTPServerTests/HTTPKeepAliveHandlerTests.swift b/Tests/NIOHTTPServerTests/HTTPKeepAliveHandlerTests.swift
index ceab345..7b3aac8 100644
--- a/Tests/NIOHTTPServerTests/HTTPKeepAliveHandlerTests.swift
+++ b/Tests/NIOHTTPServerTests/HTTPKeepAliveHandlerTests.swift
@@ -30,7 +30,7 @@ struct HTTPKeepAliveHandlerTests {
     /// Verifies the happy case: when a client pipelines multiple HTTP/1.1 requests
     /// on a single connection, all responses are returned in order and the connection
     /// stays alive (no `Connection: close`).
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Pipelined requests on a single connection all succeed")
     func testPipelinedRequests() async throws {
         let server = NIOHTTPServer(
@@ -100,7 +100,7 @@ struct HTTPKeepAliveHandlerTests {
     /// Verifies that when the handler writes a short response (head + end, no body)
     /// before the request `.end` has arrived, the response head includes a
     /// `Connection: close` header and the server closes the connection.
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Server sends head+end (no body) before request .end — Connection: close in header")
     func testShortResponseBeforeRequestEnd() async throws {
         let server = NIOHTTPServer(
@@ -181,7 +181,7 @@ struct HTTPKeepAliveHandlerTests {
     /// the request `.end` has arrived; the client must receive that informational
     /// response immediately (without waiting for request `.end`), and the connection
     /// must remain alive after the final response.
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Informational (1xx) responses pass through without buffering or closing")
     func testInformationalResponsePassesThrough() async throws {
         let server = NIOHTTPServer(
@@ -294,7 +294,7 @@ struct HTTPKeepAliveHandlerTests {
     /// everything until request `.end` arrives. Because the head is flushed before
     /// request `.end` arrives, the response carries `Connection: close` and the
     /// server closes the connection after writing response `.end`.
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Bidirectional streaming works — head is flushed (with Connection: close) when a body part is written")
     func testBidirectionalStreamingOverHTTP1() async throws {
         let server = NIOHTTPServer(
@@ -390,7 +390,7 @@ struct HTTPKeepAliveHandlerTests {
     /// server reads the body chunk, the read cycle ends with the head still
     /// buffered and request `.end` still missing — the keep-alive handler must add
     /// `Connection: close`.
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Read cycle ends without request .end while head is buffered — Connection: close added")
     func testReadCycleEndsWithoutRequestEnd_AddsConnectionClose() async throws {
         let server = NIOHTTPServer(
diff --git a/Tests/NIOHTTPServerTests/HTTPRequestConcludingAsyncReaderTests.swift b/Tests/NIOHTTPServerTests/HTTPRequestConcludingAsyncReaderTests.swift
index f32b030..ed60607 100644
--- a/Tests/NIOHTTPServerTests/HTTPRequestConcludingAsyncReaderTests.swift
+++ b/Tests/NIOHTTPServerTests/HTTPRequestConcludingAsyncReaderTests.swift
@@ -26,7 +26,7 @@ import Testing
 @Suite
 struct HTTPRequestConcludingAsyncReaderTests {
     @Test("Head request not allowed")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testWriteHeadRequestPartFatalError() async throws {
         // The request body reader should fatal error if it receives a head part
         await #expect(processExitsWith: .failure) {
@@ -48,7 +48,7 @@ struct HTTPRequestConcludingAsyncReaderTests {
     }
 
     @Test("Stream cannot be finished before writing request end part")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testNotWritingRequestEndPartFatalError() async throws {
         await #expect(processExitsWith: .failure) {
             let (stream, source) = NIOAsyncChannelInboundStream<HTTPRequestPart>.makeTestingStream()
@@ -79,7 +79,7 @@ struct HTTPRequestConcludingAsyncReaderTests {
             HTTPFields([.init(name: .cookie, value: "first_cookie"), .init(name: .cookie, value: "second_cookie")]),
         ]
     )
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testRequestWithConcludingElement(body: ByteBuffer, trailers: HTTPFields) async throws {
         let (stream, source) = NIOAsyncChannelInboundStream<HTTPRequestPart>.makeTestingStream()
 
@@ -122,7 +122,7 @@ struct HTTPRequestConcludingAsyncReaderTests {
             HTTPFields([.init(name: .cookie, value: "first_cookie"), .init(name: .cookie, value: "second_cookie")]),
         ]
     )
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testStreamedRequestBody(bodyChunks: [ByteBuffer], trailers: HTTPFields) async throws {
         let (stream, source) = NIOAsyncChannelInboundStream<HTTPRequestPart>.makeTestingStream()
 
@@ -158,7 +158,7 @@ struct HTTPRequestConcludingAsyncReaderTests {
     }
 
     @Test("Throw while reading request")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testThrowingWhileReadingRequest() async throws {
         let (stream, source) = NIOAsyncChannelInboundStream<HTTPRequestPart>.makeTestingStream()
 
@@ -189,7 +189,7 @@ struct HTTPRequestConcludingAsyncReaderTests {
         }
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("More bytes available than consumption limit")
     func testCollectMoreBytesThanAvailable() async throws {
         let (stream, source) = NIOAsyncChannelInboundStream<HTTPRequestPart>.makeTestingStream()
diff --git a/Tests/NIOHTTPServerTests/HTTPResponseConcludingAsyncWriterTests.swift b/Tests/NIOHTTPServerTests/HTTPResponseConcludingAsyncWriterTests.swift
index 6be2a18..c986b7f 100644
--- a/Tests/NIOHTTPServerTests/HTTPResponseConcludingAsyncWriterTests.swift
+++ b/Tests/NIOHTTPServerTests/HTTPResponseConcludingAsyncWriterTests.swift
@@ -28,7 +28,7 @@ struct HTTPResponseConcludingAsyncWriterTests {
     let trailerSampleTwo: HTTPFields = [.serverTiming: "test", .cookie: "cookie"]
 
     @Test("Write single body element")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testSingleWriteAndConclude() async throws {
         let (writer, sink) = NIOAsyncChannelOutboundWriter<HTTPResponsePart>.makeTestingWriter()
         let responseWriter = HTTPResponseConcludingAsyncWriter(writer: writer, writerState: .init())
@@ -46,7 +46,7 @@ struct HTTPResponseConcludingAsyncWriterTests {
     }
 
     @Test("Write multiple body elements")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testProduceMultipleElementsAndSingleTrailer() async throws {
         let (writer, sink) = NIOAsyncChannelOutboundWriter<HTTPResponsePart>.makeTestingWriter()
         let responseWriter = HTTPResponseConcludingAsyncWriter(writer: writer, writerState: .init())
@@ -73,7 +73,7 @@ struct HTTPResponseConcludingAsyncWriterTests {
     }
 
     @Test("Throw while writing response")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testThrowWhileProducing() async throws {
         let (writer, sink) = NIOAsyncChannelOutboundWriter<HTTPResponsePart>.makeTestingWriter()
 
@@ -97,7 +97,7 @@ struct HTTPResponseConcludingAsyncWriterTests {
     }
 
     @Test("Write multiple elements and multiple trailers")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testProduceMultipleElementsAndMultipleTrailers() async throws {
         let (writer, sink) = NIOAsyncChannelOutboundWriter<HTTPResponsePart>.makeTestingWriter()
         let responseWriter = HTTPResponseConcludingAsyncWriter(writer: writer, writerState: .init())
@@ -124,7 +124,7 @@ struct HTTPResponseConcludingAsyncWriterTests {
     }
 
     @Test("No body, just trailers")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testNoBodyJustTrailers() async throws {
         let (writer, sink) = NIOAsyncChannelOutboundWriter<HTTPResponsePart>.makeTestingWriter()
         let responseWriter = HTTPResponseConcludingAsyncWriter(writer: writer, writerState: .init())
diff --git a/Tests/NIOHTTPServerTests/HTTPResponseSenderTests.swift b/Tests/NIOHTTPServerTests/HTTPResponseSenderTests.swift
index b22303f..3a7d55f 100644
--- a/Tests/NIOHTTPServerTests/HTTPResponseSenderTests.swift
+++ b/Tests/NIOHTTPServerTests/HTTPResponseSenderTests.swift
@@ -23,7 +23,7 @@ import Testing
 @Suite
 struct HTTPResponseSenderTests {
     @Test("Informational header without informational status code")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testInformationalResponseStatusCodePrecondition() async throws {
         // Sending an informational header with a non-1xx status code shouldn't be allowed
         try await #require(processExitsWith: .failure) {
@@ -43,7 +43,7 @@ struct HTTPResponseSenderTests {
     }
 
     @Test("Multiple informational responses before final response")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testSendMultipleInformationalResponses() async throws {
         let (outboundWriter, sink) = NIOAsyncChannelOutboundWriter<HTTPResponsePart>.makeTestingWriter()
         let sender = HTTPResponseSender { response in
diff --git a/Tests/NIOHTTPServerTests/HTTPServerTests.swift b/Tests/NIOHTTPServerTests/HTTPServerTests.swift
index dc85fec..2c120bc 100644
--- a/Tests/NIOHTTPServerTests/HTTPServerTests.swift
+++ b/Tests/NIOHTTPServerTests/HTTPServerTests.swift
@@ -20,7 +20,7 @@ import Testing
 @Suite
 struct HTTPServerTests {
     @Test
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testConsumingServe() async throws {
         let server = NIOHTTPServer(
             logger: Logger(label: "Test"),
diff --git a/Tests/NIOHTTPServerTests/NIOHTTPServer+ServiceLifecycleTests.swift b/Tests/NIOHTTPServerTests/NIOHTTPServer+ServiceLifecycleTests.swift
index 40c9f1f..22cf55d 100644
--- a/Tests/NIOHTTPServerTests/NIOHTTPServer+ServiceLifecycleTests.swift
+++ b/Tests/NIOHTTPServerTests/NIOHTTPServer+ServiceLifecycleTests.swift
@@ -36,7 +36,7 @@ struct NIOHTTPServiceLifecycleTests {
     let serviceGroupLogger = Logger(label: "Test ServiceGroup")
 
     @Test("HTTP/1.1 active connection completes when graceful shutdown triggered", )
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func activeHTTP1ConnectionCanCompleteWhenGracefulShutdown() async throws {
         let server = NIOHTTPServer(
             logger: self.serverLogger,
@@ -125,7 +125,7 @@ struct NIOHTTPServiceLifecycleTests {
     }
 
     @Test("HTTP/1.1 active connection forcefully shutdown when server task cancelled")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func activeHTTP1ConnectionForcefullyShutdownWhenServerTaskCancelled() async throws {
         let server = NIOHTTPServer(
             logger: self.serverLogger,
@@ -206,7 +206,7 @@ struct NIOHTTPServiceLifecycleTests {
     }
 
     @Test("Active HTTP/2 connection is forcefully shut down upon graceful shutdown timeout")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testActiveHTTP2ConnectionIsShutDownAfterGraceTimeout() async throws {
         let serverChain = try TestCA.makeSelfSignedChain()
 
diff --git a/Tests/NIOHTTPServerTests/NIOHTTPServerEndToEndTests.swift b/Tests/NIOHTTPServerTests/NIOHTTPServerEndToEndTests.swift
index 8bf9f74..f2fa748 100644
--- a/Tests/NIOHTTPServerTests/NIOHTTPServerEndToEndTests.swift
+++ b/Tests/NIOHTTPServerTests/NIOHTTPServerEndToEndTests.swift
@@ -21,7 +21,7 @@ import Testing
 
 @Suite
 struct NIOHTTPServerEndToEndTests {
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("HTTP/1.1 request and response")
     func testHTTP1_1() async throws {
         try await TestingChannelHTTP1Server.serve(
@@ -69,7 +69,7 @@ struct NIOHTTPServerEndToEndTests {
         }
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("HTTP/2 negotiation")
     func testHTTP2Negotiation() async throws {
         let serverChain = try TestCA.makeSelfSignedChain()
diff --git a/Tests/NIOHTTPServerTests/NIOHTTPServerSwiftConfigurationTests.swift b/Tests/NIOHTTPServerTests/NIOHTTPServerSwiftConfigurationTests.swift
index d71edb4..f910ce3 100644
--- a/Tests/NIOHTTPServerTests/NIOHTTPServerSwiftConfigurationTests.swift
+++ b/Tests/NIOHTTPServerTests/NIOHTTPServerSwiftConfigurationTests.swift
@@ -28,7 +28,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
     @Suite("BindTarget")
     struct BindTargetTests {
         @Test("Valid host and port")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testValidConfig() throws {
             let provider = InMemoryProvider(values: ["host": "localhost", "port": 8080])
 
@@ -45,7 +45,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Init fails with missing host")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testMissingHost() throws {
             let provider = InMemoryProvider(values: ["port": 8080])
             let config = ConfigReader(provider: provider)
@@ -59,7 +59,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Init fails with missing port")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testMissingPort() throws {
             let provider = InMemoryProvider(values: ["host": "localhost"])
             let config = ConfigReader(provider: provider)
@@ -76,7 +76,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
     @Suite("Multiple bind targets via bindTargets")
     struct MultipleBindTargetsTests {
         @Test("Parallel hosts and ports produce multiple bind targets")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testMultipleBindTargets() throws {
             let provider = InMemoryProvider(
                 values: [
@@ -107,7 +107,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Singular bindTarget still works")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testSingularBindTargetStillWorks() throws {
             let provider = InMemoryProvider(
                 values: [
@@ -131,7 +131,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Providing both singular and plural throws an error")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testBothSingularAndPluralThrows() throws {
             let provider = InMemoryProvider(
                 values: [
@@ -151,7 +151,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Mismatched hosts and ports lengths throws an error")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testMismatchedHostsAndPortsLengthsThrows() throws {
             let provider = InMemoryProvider(
                 values: [
@@ -169,7 +169,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Empty bindTargets arrays throws an error")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testEmptyBindTargetsArraysThrows() throws {
             let provider = InMemoryProvider(
                 values: [
@@ -190,7 +190,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
     @Suite("BackPressureStrategy")
     struct BackPressureStrategyTests {
         @Test("Default values")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testDefaultValues() throws {
             // Don't provide anything. All values have defaults.
             let provider = InMemoryProvider(values: [:])
@@ -207,7 +207,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Custom values")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testCustomValues() throws {
             let provider = InMemoryProvider(values: ["lowWatermark": 5, "highWatermark": 20])
             let config = ConfigReader(provider: provider)
@@ -223,7 +223,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Partial custom values")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testPartialCustomValues() throws {
             let provider = InMemoryProvider(values: ["lowWatermark": 3])
             let config = ConfigReader(provider: provider)
@@ -242,7 +242,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
     @Suite("SupportedHTTPVersions")
     struct SupportedHTTPVersionsTests {
         @Test("Empty supported version set is invalid")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testEmptySupportedHTTPVersionSetFails() async {
             await #expect(processExitsWith: .failure) {
                 let provider = InMemoryProvider(values: [
@@ -256,7 +256,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Unrecognized versions are ignored")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testUnrecognizedHTTPVersionIgnored() throws {
             let provider = InMemoryProvider(values: [
                 "versions": .init(.stringArray(["unrecognized_version"]), isSecret: false)
@@ -273,7 +273,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Default HTTP/2 configuration used when not specified")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testDefaultHTTP2ConfigurationUsed() throws {
             let provider = InMemoryProvider(values: [
                 "versions": .init(.stringArray(["http1_1", "http2"]), isSecret: false)
@@ -290,7 +290,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
     @Suite("HTTP2")
     struct HTTP2Tests {
         @Test("Default values")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testDefaultValues() throws {
             let provider = InMemoryProvider(values: [:])
             let config = ConfigReader(provider: provider)
@@ -305,7 +305,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Custom values")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testCustomValues() throws {
             let provider = InMemoryProvider(values: [
                 "maxFrameSize": 1,
@@ -325,7 +325,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Partial custom values")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testPartialCustomValues() throws {
             let provider = InMemoryProvider(values: ["maxFrameSize": 5])
             let config = ConfigReader(provider: provider)
@@ -343,7 +343,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
     @Suite("TransportSecurity")
     struct TransportSecurityTests {
         @Test("Invalid security mode")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testInvalidSecurityMode() throws {
             let provider = InMemoryProvider(values: ["mode": "<this_mode_does_not_exist>"])
             let config = ConfigReader(provider: provider)
@@ -357,7 +357,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Custom verification callback without mTLS being enabled")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func testCannotInitializeWithCustomCallbackWhenMTLSNotEnabled() throws {
             let provider = InMemoryProvider(values: ["mode": "tls", "credentialSource": "inline"])
             let config = ConfigReader(provider: provider)
@@ -382,7 +382,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         @Suite
         struct TLS {
             @Test("Valid config using inline credentials")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testValidConfigUsingInlineCredentials() throws {
                 let chain = try TestCA.makeSelfSignedChain()
                 let certsPEM = try chain.chainPEMString
@@ -416,7 +416,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
             }
 
             @Test("Valid file-based credentials with reloading")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testValidFileConfigWithReloading() async throws {
                 let provider = InMemoryProvider(
                     values: [
@@ -444,7 +444,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
             }
 
             @Test("Valid file-based credentials without reloading")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testValidFileConfigWithoutReloading() throws {
                 let provider = InMemoryProvider(
                     values: [
@@ -471,7 +471,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
             }
 
             @Test("Init fails with missing certificate")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testMissingCertificate() throws {
                 let chain = try TestCA.makeSelfSignedChain()
                 let keyPEM = try chain.privateKey.serializeAsPEM().pemString
@@ -494,7 +494,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
             }
 
             @Test("Init fails with missing private key")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testMissingPrivateKey() throws {
                 let chain = try TestCA.makeSelfSignedChain()
                 let certsPEM = try chain.chainPEMString
@@ -520,7 +520,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         @Suite
         struct MTLS {
             @Test("Custom verification callback")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testValidConfigWithCustomVerificationCallback() throws {
                 let serverChain = try TestCA.makeSelfSignedChain()
 
@@ -572,7 +572,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
             }
 
             @Test("Optional verification mode")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testOptionalVerification() throws {
                 let serverChain = try TestCA.makeSelfSignedChain()
                 let certsPEM = try serverChain.chainPEMString
@@ -614,7 +614,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
             }
 
             @Test("Invalid verification mode")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testInvalidVerificationMode() throws {
                 let serverChain = try TestCA.makeSelfSignedChain()
 
@@ -645,7 +645,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
             }
 
             @Test("Default trust roots")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testDefaultTrustRoots() throws {
                 let serverChain = try TestCA.makeSelfSignedChain()
 
@@ -687,7 +687,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
             }
 
             @Test("Trust roots from PEM file path")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testTrustRootsFromPEMFilePath() throws {
                 let serverChain = try TestCA.makeSelfSignedChain()
 
@@ -730,7 +730,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         @Suite
         struct ReloadingMTLS {
             @Test("Valid config with file credentials and reloading")
-            @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+            @available(anyAppleOS 26.0, *)
             func testValidConfig() async throws {
                 let chain = try TestCA.makeSelfSignedChain()
                 let trustRootPEM = try chain.ca.serializeAsPEM().pemString
@@ -774,7 +774,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
     @Suite("End-to-End")
     struct EndToEndConfigurationTests {
         @Test("Configure all possible values")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func fullConfiguration() throws {
             let chain = try TestCA.makeSelfSignedChain()
             let certsPEM = try chain.chainPEMString
@@ -843,7 +843,7 @@ struct NIOHTTPServerSwiftConfigurationTests {
         }
 
         @Test("Only HTTP/1.1 supported over plaintext")
-        @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+        @available(anyAppleOS 26.0, *)
         func onlyHTTP1_1SupportedOverPlaintext() async {
             await #expect(processExitsWith: .failure) {
                 let provider = InMemoryProvider(
diff --git a/Tests/NIOHTTPServerTests/NIOHTTPServerTests.swift b/Tests/NIOHTTPServerTests/NIOHTTPServerTests.swift
index 52d3fa1..efb78aa 100644
--- a/Tests/NIOHTTPServerTests/NIOHTTPServerTests.swift
+++ b/Tests/NIOHTTPServerTests/NIOHTTPServerTests.swift
@@ -35,7 +35,7 @@ import X509
 struct NIOHTTPServerTests {
     let serverLogger = Logger(label: "NIOHTTPServerTests")
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Obtain the listening address correctly")
     func testListeningAddress() async throws {
         let server = NIOHTTPServer(
@@ -64,7 +64,7 @@ struct NIOHTTPServerTests {
     }
 
     @Test("Plaintext request-response")
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func testPlaintext() async throws {
         let server = NIOHTTPServer(
             logger: Logger(label: "NIOHTTPServerTests"),
@@ -118,7 +118,7 @@ struct NIOHTTPServerTests {
         )
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test(
         "mTLS request-response with custom verification callback returning peer certificates",
         arguments: [HTTPVersion.http1_1, HTTPVersion.http2]
@@ -202,7 +202,7 @@ struct NIOHTTPServerTests {
         }
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Multiple informational response headers", arguments: [HTTPVersion.http1_1, HTTPVersion.http2])
     func testMultipleInformationalResponseHeaders(httpVersion: HTTPVersion) async throws {
         let (server, serverChain) = try self.makeSecureUpgradeServer()
@@ -252,7 +252,7 @@ struct NIOHTTPServerTests {
         }
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Client closes stream without sending end part", arguments: [HTTPVersion.http1_1, HTTPVersion.http2])
     func testRequestWithoutEndPart(httpVersion: HTTPVersion) async throws {
         let (server, serverChain) = try self.makeSecureUpgradeServer()
@@ -310,7 +310,7 @@ struct NIOHTTPServerTests {
         }
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Bi-directional streaming", arguments: [HTTPVersion.http1_1, HTTPVersion.http2])
     func testBidirectionalStreaming(httpVersion: HTTPVersion) async throws {
         let (server, serverChain) = try self.makeSecureUpgradeServer()
@@ -374,7 +374,7 @@ struct NIOHTTPServerTests {
         )
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Multiple serial HTTP/1.1 requests on the same connection")
     func testMultipleSerialHTTP1Requests() async throws {
         let server = NIOHTTPServer(
@@ -428,7 +428,7 @@ struct NIOHTTPServerTests {
         }
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Multiple concurrent connections", arguments: [HTTPVersion.http1_1, HTTPVersion.http2])
     func testMultipleConcurrentConnections(httpVersion: HTTPVersion) async throws {
         let (server, serverChain) = try self.makeSecureUpgradeServer()
@@ -497,7 +497,7 @@ struct NIOHTTPServerTests {
         }
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Multiple concurrent HTTP/2 streams")
     func testMultipleConcurrentHTTP2Streams() async throws {
         let (server, serverChain) = try self.makeSecureUpgradeServer()
@@ -567,7 +567,7 @@ struct NIOHTTPServerTests {
         }
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Server can still process other connections despite one failing")
     func testServerCanContinueDespiteFailedConnection() async throws {
         let server = try self.makePlaintextHTTP1Server()
@@ -626,7 +626,7 @@ struct NIOHTTPServerTests {
         )
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Bind to multiple addresses")
     func testMultipleBindAddresses() async throws {
         let server = NIOHTTPServer(
@@ -651,7 +651,7 @@ struct NIOHTTPServerTests {
         )
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Serve requests on multiple addresses independently")
     func testServeOnMultipleAddresses() async throws {
         let server = NIOHTTPServer(
@@ -721,7 +721,7 @@ struct NIOHTTPServerTests {
     /// all bound addresses become unavailable simultaneously and ``listeningAddresses`` throws
     /// ``ListeningAddressError/serverClosed``. No subset of addresses continues serving after the server
     /// has stopped.
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("All addresses stop together and listeningAddresses throws after server stops")
     func testAllAddressesStopTogether() async throws {
         let server = NIOHTTPServer(
@@ -774,7 +774,7 @@ struct NIOHTTPServerTests {
         }
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Empty bind targets throws error")
     func testEmptyBindTargetsThrows() throws {
         #expect(throws: NIOHTTPServerConfigurationError.noBindTargetsSpecified) {
@@ -799,7 +799,7 @@ struct NIOHTTPServerTests {
     /// to for the verification. The port is below the typical ephemeral range used by `port: 0`
     /// allocations on Linux (32768+) and macOS (49152+), so other tests using `port: 0` cannot
     /// accidentally be assigned this port by the OS.
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     @Test("Previously bound channels are closed when a later bind fails")
     func testPreviouslyBoundChannelsAreClosedOnPartialBindFailure() async throws {
         let firstPort = 30_210
@@ -852,7 +852,7 @@ extension NIOHTTPServerTests {
     static let trailer: HTTPFields = [.trailer: "test_trailer"]
     static let reqEnd = HTTPRequestPart.end(trailer)
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func makePlaintextHTTP1Server() throws -> NIOHTTPServer {
         let server = NIOHTTPServer(
             logger: self.serverLogger,
@@ -866,7 +866,7 @@ extension NIOHTTPServerTests {
         return server
     }
 
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     func makeSecureUpgradeServer() throws -> (NIOHTTPServer, ChainPrivateKeyPair) {
         let serverChain = try TestCA.makeSelfSignedChain()
 
@@ -973,7 +973,7 @@ extension NIOHTTPServerTests {
 
     /// Starts `server` with `serverHandler`, waits for it to begin listening, runs `body` with the first
     /// listening address, then cancels the server task.
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     static func withServer(
         server: NIOHTTPServer,
         serverHandler: some HTTPServerRequestHandler<
@@ -991,7 +991,7 @@ extension NIOHTTPServerTests {
 
     /// Starts `server` with `serverHandler`, waits for it to begin listening, runs `body` with all listening
     /// addresses, then cancels the server task.
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     static func withServer(
         server: NIOHTTPServer,
         serverHandler: some HTTPServerRequestHandler<
@@ -1014,7 +1014,7 @@ extension NIOHTTPServerTests {
     }
 
     /// Reads the full request body and trailers from `reader`, then sends a `200 OK` response echoing them back.
-    @available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+    @available(anyAppleOS 26.0, *)
     static func echoResponse(
         readUpTo limit: Int,
         reader: consuming HTTPRequestConcludingAsyncReader,
diff --git a/Tests/NIOHTTPServerTests/Utilities/NIOClient/NIOClient+HTTP1.swift b/Tests/NIOHTTPServerTests/Utilities/NIOClient/NIOClient+HTTP1.swift
index 7e48726..a4dadf7 100644
--- a/Tests/NIOHTTPServerTests/Utilities/NIOClient/NIOClient+HTTP1.swift
+++ b/Tests/NIOHTTPServerTests/Utilities/NIOClient/NIOClient+HTTP1.swift
@@ -19,7 +19,7 @@ import NIOHTTPTypes
 import NIOHTTPTypesHTTP1
 import NIOPosix
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension Channel {
     /// Adds HTTP/1.1 client handlers to the pipeline.
     func configureTestHTTP1ClientPipeline(
@@ -48,7 +48,7 @@ extension Channel {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension ClientBootstrap {
     /// Connects to the provided `serverAddress` and provides a `NIOAsyncChannel`. With this ``NIOAsyncChannel``, one
     /// can write `HTTPRequestPart`s to the server and observe `HTTPResponsePart`s from the inbound stream of the
diff --git a/Tests/NIOHTTPServerTests/Utilities/NIOClient/NIOClient+SecureUpgrade.swift b/Tests/NIOHTTPServerTests/Utilities/NIOClient/NIOClient+SecureUpgrade.swift
index 6631a0d..63c34a2 100644
--- a/Tests/NIOHTTPServerTests/Utilities/NIOClient/NIOClient+SecureUpgrade.swift
+++ b/Tests/NIOHTTPServerTests/Utilities/NIOClient/NIOClient+SecureUpgrade.swift
@@ -21,7 +21,7 @@ import X509
 
 @testable import NIOHTTPServer
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 /// Provides a HTTP client with ALPN negotiation.
 extension Channel {
     /// Adds a ``NIOSSLClientHandler`` configured with the provided `TLSConfiguration` to the pipeline.
@@ -53,7 +53,7 @@ extension Channel {
     }
 }
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension ClientBootstrap {
     /// Connects the client to the specified address using the provided TLS configuration.
     func connectToTestSecureUpgradeHTTPServer(
diff --git a/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/NIOHTTPServer+HTTP1.swift b/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/NIOHTTPServer+HTTP1.swift
index a698443..44233ce 100644
--- a/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/NIOHTTPServer+HTTP1.swift
+++ b/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/NIOHTTPServer+HTTP1.swift
@@ -19,7 +19,7 @@ import NIOHTTPTypes
 @testable import HTTPAPIs
 @testable import NIOHTTPServer
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer {
     /// Starts serving plaintext HTTP/1.1 using the provided testing channel instead of using `ServerBootstrap` as
     /// `NIOHTTPServer` normally does.
diff --git a/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/NIOHTTPServer+SecureUpgrade.swift b/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/NIOHTTPServer+SecureUpgrade.swift
index 71af635..1d0a443 100644
--- a/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/NIOHTTPServer+SecureUpgrade.swift
+++ b/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/NIOHTTPServer+SecureUpgrade.swift
@@ -19,7 +19,7 @@ import NIOHTTPTypes
 @testable import HTTPAPIs
 @testable import NIOHTTPServer
 
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 extension NIOHTTPServer {
     /// Starts serving with the Secure Upgrade transport using the provided testing channel instead of using
     /// `ServerBootstrap` as `NIOHTTPServer` normally does.
diff --git a/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/TestingChannelServer+HTTP1.swift b/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/TestingChannelServer+HTTP1.swift
index 1892b35..3d90ff3 100644
--- a/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/TestingChannelServer+HTTP1.swift
+++ b/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/TestingChannelServer+HTTP1.swift
@@ -32,7 +32,7 @@ import NIOHTTPTypes
 /// This provider vends a HTTP client channel (also backed by a `NIOAsyncTestingChannel`) that can be used to send
 /// requests and observe responses in terms of HTTP types (`HTTPRequestPart` and `HTTPResponsePart`) to the server
 /// connection channel.
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 struct TestingChannelHTTP1Server {
     let server: NIOHTTPServer
     let serverTestChannel: NIOAsyncTestingChannel
diff --git a/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/TestingChannelServer+SecureUpgrade.swift b/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/TestingChannelServer+SecureUpgrade.swift
index a7b2b67..df932b1 100644
--- a/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/TestingChannelServer+SecureUpgrade.swift
+++ b/Tests/NIOHTTPServerTests/Utilities/TestingChannelClientServer/TestingChannelServer+SecureUpgrade.swift
@@ -24,7 +24,7 @@ import X509
 @testable import NIOHTTPServer
 
 /// Like ``TestingChannelHTTP1Server``, but for Secure Upgrade.
-@available(macOS 26.2, iOS 26.2, watchOS 26.2, tvOS 26.2, visionOS 26.2, *)
+@available(anyAppleOS 26.0, *)
 struct TestingChannelSecureUpgradeServer {
     let server: NIOHTTPServer
     let serverTestChannel: NIOAsyncTestingChannel