diff --git a/doc/Jamfile b/doc/Jamfile
index b7c982d1e6..66c1d72eec 100644
--- a/doc/Jamfile
+++ b/doc/Jamfile
@@ -41,7 +41,7 @@ docca.reference reference.qbk
             \"BOOST_BEAST_ASYNC_RESULT2(t)=__deduced__\" \\
             \"BOOST_BEAST_ASYNC_TPARAM1=class\" \\
             \"BOOST_BEAST_ASYNC_TPARAM2=class\" \\
-            \"BOOST_ASIO_INITFN_RESULT_TYPE(t,a)=__deduced__\" \\
+            \"BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(t,a)=__deduced__\" \\
             \"BOOST_ASIO_DEFAULT_COMPLETION_TOKEN(e)= =__deduced__\" \\
             \"BOOST_ASIO_COMPLETION_TOKEN_FOR(sig)=class\" \\
             GENERATING_DOCUMENTATION \\
diff --git a/include/boost/beast/_experimental/test/impl/stream.hpp b/include/boost/beast/_experimental/test/impl/stream.hpp
index 90dd625263..0971a5b007 100644
--- a/include/boost/beast/_experimental/test/impl/stream.hpp
+++ b/include/boost/beast/_experimental/test/impl/stream.hpp
@@ -31,11 +31,6 @@ template<class Executor>
 template<class Handler, class Buffers>
 class basic_stream<Executor>::read_op : public detail::stream_read_op_base
 {
-    using ex1_type =
-        executor_type;
-    using ex2_type
-        = net::associated_executor_t<Handler, ex1_type>;
-
     struct lambda
     {
         Handler h_;
@@ -44,7 +39,8 @@ class basic_stream<Executor>::read_op : public detail::stream_read_op_base
 #if defined(BOOST_ASIO_NO_TS_EXECUTORS)
         net::any_io_executor wg2_;
 #else // defined(BOOST_ASIO_NO_TS_EXECUTORS)
-        net::executor_work_guard<ex2_type> wg2_;
+        net::executor_work_guard<
+            net::associated_executor_t<Handler, net::any_io_executor>> wg2_;
 #endif // defined(BOOST_ASIO_NO_TS_EXECUTORS)
 
         lambda(lambda&&) = default;
@@ -330,7 +326,7 @@ read_some(MutableBufferSequence const& buffers,
 template<class Executor>
 template<class MutableBufferSequence,
     BOOST_ASIO_COMPLETION_TOKEN_FOR(void(error_code, std::size_t)) ReadHandler>
-BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, void(error_code, std::size_t))
+BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void(error_code, std::size_t))
 basic_stream<Executor>::
 async_read_some(
     MutableBufferSequence const& buffers,
@@ -414,7 +410,7 @@ write_some(
 template<class Executor>
 template<class ConstBufferSequence,
     BOOST_ASIO_COMPLETION_TOKEN_FOR(void(error_code, std::size_t)) WriteHandler>
-BOOST_ASIO_INITFN_RESULT_TYPE(WriteHandler, void(error_code, std::size_t))
+BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(WriteHandler, void(error_code, std::size_t))
 basic_stream<Executor>::
 async_write_some(
     ConstBufferSequence const& buffers,
diff --git a/include/boost/beast/_experimental/test/stream.hpp b/include/boost/beast/_experimental/test/stream.hpp
index 0f9cc809ed..a3b0236150 100644
--- a/include/boost/beast/_experimental/test/stream.hpp
+++ b/include/boost/beast/_experimental/test/stream.hpp
@@ -468,7 +468,7 @@ class basic_stream
         class MutableBufferSequence,
         BOOST_ASIO_COMPLETION_TOKEN_FOR(void(error_code, std::size_t)) ReadHandler
             BOOST_ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(executor_type)>
-    BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, void(error_code, std::size_t))
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void(error_code, std::size_t))
     async_read_some(
         MutableBufferSequence const& buffers,
         ReadHandler&& handler BOOST_ASIO_DEFAULT_COMPLETION_TOKEN(executor_type));
@@ -547,7 +547,7 @@ class basic_stream
         class ConstBufferSequence,
         BOOST_ASIO_COMPLETION_TOKEN_FOR(void(error_code, std::size_t)) WriteHandler
             BOOST_ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(executor_type)>
-    BOOST_ASIO_INITFN_RESULT_TYPE(WriteHandler, void(error_code, std::size_t))
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(WriteHandler, void(error_code, std::size_t))
     async_write_some(
         ConstBufferSequence const& buffers,
         WriteHandler&& handler BOOST_ASIO_DEFAULT_COMPLETION_TOKEN(executor_type)
diff --git a/include/boost/beast/core/basic_stream.hpp b/include/boost/beast/core/basic_stream.hpp
index 19e9597464..2ba8f3a6a6 100644
--- a/include/boost/beast/core/basic_stream.hpp
+++ b/include/boost/beast/core/basic_stream.hpp
@@ -1022,7 +1022,7 @@ class basic_stream
                 EndpointSequence>::value>::type
     #endif
     >
-    BOOST_ASIO_INITFN_RESULT_TYPE(
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(
         RangeConnectHandler,
         void(error_code, typename Protocol::endpoint))
     async_connect(
@@ -1126,7 +1126,7 @@ class basic_stream
                 EndpointSequence>::value>::type
     #endif
     >
-    BOOST_ASIO_INITFN_RESULT_TYPE(
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(
         RangeConnectHandler,
         void(error_code, typename Protocol::endpoint))
     async_connect(
@@ -1195,7 +1195,7 @@ class basic_stream
             void(error_code, Iterator))
             IteratorConnectHandler =
                 net::default_completion_token_t<executor_type>>
-    BOOST_ASIO_INITFN_RESULT_TYPE(
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(
         IteratorConnectHandler,
         void(error_code, Iterator))
     async_connect(
@@ -1267,7 +1267,7 @@ class basic_stream
             void(error_code, Iterator))
             IteratorConnectHandler =
                 net::default_completion_token_t<executor_type>>
-    BOOST_ASIO_INITFN_RESULT_TYPE(
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(
         IteratorConnectHandler,
         void(error_code, Iterator))
     async_connect(
diff --git a/include/boost/beast/core/detect_ssl.hpp b/include/boost/beast/core/detect_ssl.hpp
index b641b3ff2b..ea6c56f9c4 100644
--- a/include/boost/beast/core/detect_ssl.hpp
+++ b/include/boost/beast/core/detect_ssl.hpp
@@ -319,19 +319,12 @@ template<
     class CompletionToken =
         net::default_completion_token_t<beast::executor_type<AsyncReadStream>>
 >
-#if BOOST_BEAST_DOXYGEN
-BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, void(error_code, bool))
-#else
-auto
-#endif
+BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(CompletionToken, void(error_code, bool))
 async_detect_ssl(
     AsyncReadStream& stream,
     DynamicBuffer& buffer,
     CompletionToken&& token = net::default_completion_token_t<
-            beast::executor_type<AsyncReadStream>>{}) ->
-        typename net::async_result<
-            typename std::decay<CompletionToken>::type, /*< `async_result` customizes the return value based on the completion token >*/
-            void(error_code, bool)>::return_type; /*< This is the signature for the completion handler >*/
+            beast::executor_type<AsyncReadStream>>{});
 //]
 
 //[example_core_detect_ssl_5
@@ -395,18 +388,11 @@ template<
     class AsyncReadStream,
     class DynamicBuffer,
     class CompletionToken>
-#if BOOST_BEAST_DOXYGEN
-BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, void(error_code, bool))
-#else
-auto
-#endif
+BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(CompletionToken, void(error_code, bool))
 async_detect_ssl(
     AsyncReadStream& stream,
     DynamicBuffer& buffer,
     CompletionToken&& token)
-        -> typename net::async_result<
-            typename std::decay<CompletionToken>::type,
-            void(error_code, bool)>::return_type
 {
     // Make sure arguments meet the type requirements
 
diff --git a/include/boost/beast/core/impl/basic_stream.hpp b/include/boost/beast/core/impl/basic_stream.hpp
index bb19d7873f..09337cded7 100644
--- a/include/boost/beast/core/impl/basic_stream.hpp
+++ b/include/boost/beast/core/impl/basic_stream.hpp
@@ -893,7 +893,7 @@ template<
     class EndpointSequence,
     BOOST_ASIO_COMPLETION_TOKEN_FOR(void(error_code, typename Protocol::endpoint)) RangeConnectHandler,
     class>
-BOOST_ASIO_INITFN_RESULT_TYPE(RangeConnectHandler,void(error_code, typename Protocol::endpoint))
+BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(RangeConnectHandler,void(error_code, typename Protocol::endpoint))
 basic_stream<Protocol, Executor, RatePolicy>::
 async_connect(
     EndpointSequence const& endpoints,
@@ -915,7 +915,7 @@ template<
     class ConnectCondition,
     BOOST_ASIO_COMPLETION_TOKEN_FOR(void(error_code, typename Protocol::endpoint)) RangeConnectHandler,
     class>
-BOOST_ASIO_INITFN_RESULT_TYPE(RangeConnectHandler,void (error_code, typename Protocol::endpoint))
+BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(RangeConnectHandler,void (error_code, typename Protocol::endpoint))
 basic_stream<Protocol, Executor, RatePolicy>::
 async_connect(
     EndpointSequence const& endpoints,
@@ -936,7 +936,7 @@ template<class Protocol, class Executor, class RatePolicy>
 template<
     class Iterator,
     BOOST_ASIO_COMPLETION_TOKEN_FOR(void(error_code, Iterator)) IteratorConnectHandler>
-BOOST_ASIO_INITFN_RESULT_TYPE(IteratorConnectHandler,void (error_code, Iterator))
+BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(IteratorConnectHandler,void (error_code, Iterator))
 basic_stream<Protocol, Executor, RatePolicy>::
 async_connect(
     Iterator begin, Iterator end,
@@ -957,7 +957,7 @@ template<
     class Iterator,
     class ConnectCondition,
     BOOST_ASIO_COMPLETION_TOKEN_FOR(void(error_code, Iterator)) IteratorConnectHandler>
-BOOST_ASIO_INITFN_RESULT_TYPE(IteratorConnectHandler,void (error_code, Iterator))
+BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(IteratorConnectHandler,void (error_code, Iterator))
 basic_stream<Protocol, Executor, RatePolicy>::
 async_connect(
     Iterator begin, Iterator end,
diff --git a/include/boost/beast/ssl/ssl_stream.hpp b/include/boost/beast/ssl/ssl_stream.hpp
index 452320b722..ec7fea19b6 100644
--- a/include/boost/beast/ssl/ssl_stream.hpp
+++ b/include/boost/beast/ssl/ssl_stream.hpp
@@ -412,7 +412,7 @@ class ssl_stream
         ); @endcode
     */
     template<BOOST_BEAST_ASYNC_TPARAM1 HandshakeHandler = net::default_completion_token_t<executor_type>>
-    BOOST_ASIO_INITFN_RESULT_TYPE(HandshakeHandler, void(boost::system::error_code))
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(HandshakeHandler, void(boost::system::error_code))
     async_handshake(handshake_type type,
         BOOST_ASIO_MOVE_ARG(HandshakeHandler) handler = net::default_completion_token_t<executor_type>{})
     {
@@ -443,7 +443,7 @@ class ssl_stream
     */
     template<class ConstBufferSequence,
              BOOST_BEAST_ASYNC_TPARAM2 BufferedHandshakeHandler = net::default_completion_token_t<executor_type>>
-    BOOST_ASIO_INITFN_RESULT_TYPE(BufferedHandshakeHandler, void(boost::system::error_code, std::size_t))
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(BufferedHandshakeHandler, void(boost::system::error_code, std::size_t))
     async_handshake(handshake_type type, ConstBufferSequence const& buffers,
         BOOST_ASIO_MOVE_ARG(BufferedHandshakeHandler) handler
             = net::default_completion_token_t<executor_type>{})
@@ -491,7 +491,7 @@ class ssl_stream
         ); @endcode
     */
     template<BOOST_BEAST_ASYNC_TPARAM1 ShutdownHandler = net::default_completion_token_t<executor_type>>
-    BOOST_ASIO_INITFN_RESULT_TYPE(ShutdownHandler, void(boost::system::error_code))
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ShutdownHandler, void(boost::system::error_code))
     async_shutdown(BOOST_ASIO_MOVE_ARG(ShutdownHandler) handler = net::default_completion_token_t<executor_type>{})
     {
         return p_->next_layer().async_shutdown(
@@ -570,7 +570,7 @@ class ssl_stream
     */
     template<class ConstBufferSequence,
              BOOST_BEAST_ASYNC_TPARAM2 WriteHandler = net::default_completion_token_t<executor_type>>
-    BOOST_ASIO_INITFN_RESULT_TYPE(WriteHandler, void(boost::system::error_code, std::size_t))
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(WriteHandler, void(boost::system::error_code, std::size_t))
     async_write_some(ConstBufferSequence const& buffers,
         BOOST_ASIO_MOVE_ARG(WriteHandler) handler= net::default_completion_token_t<executor_type>{})
     {
@@ -652,7 +652,7 @@ class ssl_stream
     */
     template<class MutableBufferSequence,
              BOOST_BEAST_ASYNC_TPARAM2 ReadHandler = net::default_completion_token_t<executor_type>>
-    BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, void(boost::system::error_code, std::size_t))
+    BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void(boost::system::error_code, std::size_t))
     async_read_some(MutableBufferSequence const& buffers,
         BOOST_ASIO_MOVE_ARG(ReadHandler) handler
             = net::default_completion_token_t<executor_type>{})
diff --git a/test/beast/core/basic_stream.cpp b/test/beast/core/basic_stream.cpp
index 79406f9479..a74f491623 100644
--- a/test/beast/core/basic_stream.cpp
+++ b/test/beast/core/basic_stream.cpp
@@ -1298,7 +1298,7 @@ class basic_stream_test
                 resolve_results.begin()->endpoint(),
                 net::use_awaitable))>);
 
-        auto comparison_function = [](error_code&, net::ip::tcp::endpoint) { return true; };
+        auto comparison_function = [](error_code const&, net::ip::tcp::endpoint) { return true; };
 
         static_assert(std::is_same_v<
             net::awaitable<net::ip::tcp::resolver::results_type::const_iterator>, decltype(
diff --git a/test/beast/http/CMakeLists.txt b/test/beast/http/CMakeLists.txt
index 80af1e9c9c..cd4b49ec1c 100644
--- a/test/beast/http/CMakeLists.txt
+++ b/test/beast/http/CMakeLists.txt
@@ -23,6 +23,7 @@ add_executable (tests-beast-http
     basic_parser.cpp
     buffer_body.cpp
     chunk_encode.cpp
+    deferred.cpp
     dynamic_body.cpp
     empty_body.cpp
     error.cpp
diff --git a/test/beast/http/Jamfile b/test/beast/http/Jamfile
index 6e1e564f31..487be1abbf 100644
--- a/test/beast/http/Jamfile
+++ b/test/beast/http/Jamfile
@@ -14,6 +14,7 @@ local SOURCES =
     basic_parser.cpp
     buffer_body.cpp
     chunk_encode.cpp
+    deferred.cpp
     dynamic_body.cpp
     error.cpp
     field.cpp
diff --git a/test/beast/http/deferred.cpp b/test/beast/http/deferred.cpp
new file mode 100644
index 0000000000..c0d67040d8
--- /dev/null
+++ b/test/beast/http/deferred.cpp
@@ -0,0 +1,36 @@
+//
+// Copyright (c) 2023 Mohammad Nejati
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <boost/asio/deferred.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/beast/http.hpp>
+
+using namespace boost;
+namespace http = boost::beast::http;
+
+#if !defined(BOOST_NO_CXX14)
+
+// just compile this.
+void test_deferred_for_http(
+    asio::ip::tcp::socket & stream,
+    beast::flat_static_buffer_base & buf,
+    http::basic_parser<true> & parser,
+    http::serializer<true, http::empty_body> & ser,
+    http::message<false, http::empty_body> & msg)
+{
+  http::async_read(stream, buf, parser, asio::deferred);
+  http::async_read(stream, buf, msg, asio::deferred);
+  http::async_read_some(stream, buf, parser, asio::deferred);
+  http::async_read_header(stream, buf, parser, asio::deferred);
+
+  http::async_write(stream, ser, asio::deferred);
+  http::async_write(stream, msg, asio::deferred);
+  http::async_write_header(stream, ser, asio::deferred);
+  http::async_write_some(stream, ser, asio::deferred);
+}
+
+#endif
diff --git a/test/beast/websocket/CMakeLists.txt b/test/beast/websocket/CMakeLists.txt
index 0df8f74f77..3610c9b169 100644
--- a/test/beast/websocket/CMakeLists.txt
+++ b/test/beast/websocket/CMakeLists.txt
@@ -24,6 +24,7 @@ add_executable (tests-beast-websocket
     accept.cpp
     cancel.cpp
     close.cpp
+    deferred.cpp
     error.cpp
     frame.cpp
     handshake.cpp
diff --git a/test/beast/websocket/Jamfile b/test/beast/websocket/Jamfile
index 3db37042e4..eddc9f73fe 100644
--- a/test/beast/websocket/Jamfile
+++ b/test/beast/websocket/Jamfile
@@ -15,6 +15,7 @@ local SOURCES =
     accept.cpp
     cancel.cpp
     close.cpp
+    deferred.cpp
     error.cpp
     frame.cpp
     handshake.cpp
diff --git a/test/beast/websocket/deferred.cpp b/test/beast/websocket/deferred.cpp
new file mode 100644
index 0000000000..cffe4f08f6
--- /dev/null
+++ b/test/beast/websocket/deferred.cpp
@@ -0,0 +1,43 @@
+//
+// Copyright (c) 2023 Mohammad Nejati
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <boost/asio/deferred.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/beast/websocket.hpp>
+
+using namespace boost;
+namespace websocket = boost::beast::websocket;
+
+#if !defined(BOOST_NO_CXX14)
+
+// just compile this.
+void test_deferred_for_websocket(
+    websocket::stream<asio::ip::tcp::socket> & stream,
+    beast::flat_static_buffer_base & buf,
+    beast::http::request<beast::http::empty_body> & req,
+    websocket::response_type & res)
+{
+  stream.async_accept(asio::deferred);
+  stream.async_accept(asio::const_buffer(), asio::deferred);
+  stream.async_accept(req, asio::deferred);
+  stream.async_close(websocket::close_code::bad_payload, asio::deferred);
+
+  stream.async_handshake("", "/", asio::deferred);
+  stream.async_handshake(res, "", "/", asio::deferred);
+
+  stream.async_ping(websocket::ping_data{}, asio::deferred);
+  stream.async_pong(websocket::ping_data{}, asio::deferred);
+
+  stream.async_read(buf, asio::deferred);
+  stream.async_read_some(buf.data(), asio::deferred);
+
+  stream.async_write(buf.cdata(), asio::deferred);
+  stream.async_write_some(true, buf.cdata(), asio::deferred);
+
+}
+
+#endif