diff --git a/.travis.yml b/.travis.yml
index 2cb82422..7dc6d902 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,13 +38,13 @@ matrix:
   include:
     - os: osx
       compiler: clang
-      env: ACTION="ci/build_cmake.sh"  CXX11="ON" ARCH="64"   BOOST="ON" SHARED="ON"  CHAR_SIGN="unsigned" API_VERSION="1"
+      env: ACTION="ci/build_cmake.sh"  CXX17="ON" ARCH="64"   BOOST="ON" SHARED="ON"  CHAR_SIGN="unsigned" API_VERSION="1"
     - os: osx
       compiler: clang
-      env:  ACTION="ci/build_cmake.sh" CXX11="ON" ARCH="64"   BOOST="ON" SHARED="ON"  CHAR_SIGN="signed"   API_VERSION="3"
+      env:  ACTION="ci/build_cmake.sh" CXX17="ON" ARCH="64"   BOOST="ON" SHARED="ON"  CHAR_SIGN="signed"   API_VERSION="3"
     - os: osx
       compiler: clang
-      env: ACTION="ci/build_cmake.sh"  CXX11="ON" ARCH="64"              SHARED="ON"  CHAR_SIGN="signed"   API_VERSION="2"
+      env: ACTION="ci/build_cmake.sh"  CXX17="ON" ARCH="64"              SHARED="ON"  CHAR_SIGN="signed"   API_VERSION="2"
     - os: osx
       compiler: clang
       env: ACTION="ci/build_cmake.sh"             ARCH="64"              SHARED="ON"  CHAR_SIGN="unsigned" API_VERSION="2"
@@ -89,7 +89,7 @@ matrix:
             - libc6-dbg
     - os: linux
       compiler: clang
-      env: ACTION="ci/build_cmake.sh"  CXX11="ON" ARCH="64"   BOOST="ON" SHARED="ON"  CHAR_SIGN="signed"   API_VERSION="3" X3_PARSE="ON"
+      env: ACTION="ci/build_cmake.sh"  CXX17="ON" ARCH="64"   BOOST="ON" SHARED="ON"  CHAR_SIGN="signed"   API_VERSION="3" X3_PARSE="ON"
       addons:
         apt:
           sources:
@@ -106,7 +106,7 @@ matrix:
             - libc6-dbg
     - os: linux
       compiler: clang
-      env: ACTION="ci/build_cmake.sh"  CXX11="ON" ARCH="32"              SHARED="OFF" CHAR_SIGN="unsigned" API_VERSION="2"
+      env: ACTION="ci/build_cmake.sh"  CXX17="ON" ARCH="32"              SHARED="OFF" CHAR_SIGN="unsigned" API_VERSION="2"
       addons:
         apt:
           sources:
@@ -128,7 +128,7 @@ matrix:
             - libc6-dbg
     - os: linux
       compiler: gcc
-      env: ACTION="ci/build_cmake.sh"  CXX11="ON" ARCH="64"              SHARED="ON"  CHAR_SIGN="signed"   API_VERSION="2"
+      env: ACTION="ci/build_cmake.sh"  CXX17="ON" ARCH="64"              SHARED="ON"  CHAR_SIGN="signed"   API_VERSION="2"
       addons:
         apt:
           sources:
@@ -142,7 +142,7 @@ matrix:
             - libc6-dbg
     - os: linux
       compiler: gcc
-      env: ACTION="ci/build_cmake.sh"  CXX11="ON" ARCH="32"   BOOST="ON" SHARED="ON"  CHAR_SIGN="unsigned" API_VERSION="3" X3_PARSE="ON"
+      env: ACTION="ci/build_cmake.sh"  CXX17="ON" ARCH="32"   BOOST="ON" SHARED="ON"  CHAR_SIGN="unsigned" API_VERSION="3" X3_PARSE="ON"
       addons:
         apt:
           sources:
diff --git a/Files.cmake b/Files.cmake
index 70c030f7..c671e6b6 100644
--- a/Files.cmake
+++ b/Files.cmake
@@ -182,8 +182,11 @@ IF (MSGPACK_ENABLE_CXX)
         include/msgpack/adaptor/cpp11/unique_ptr.hpp
         include/msgpack/adaptor/cpp11/unordered_map.hpp
         include/msgpack/adaptor/cpp11/unordered_set.hpp
+        include/msgpack/adaptor/cpp17/byte.hpp
+        include/msgpack/adaptor/cpp17/carray_byte.hpp
         include/msgpack/adaptor/cpp17/optional.hpp
         include/msgpack/adaptor/cpp17/string_view.hpp
+        include/msgpack/adaptor/cpp17/vector_byte.hpp
         include/msgpack/adaptor/define.hpp
         include/msgpack/adaptor/define_decl.hpp
         include/msgpack/adaptor/deque.hpp
@@ -539,8 +542,11 @@ IF (MSGPACK_ENABLE_CXX)
         include/msgpack/v1/adaptor/cpp11/unique_ptr.hpp
         include/msgpack/v1/adaptor/cpp11/unordered_map.hpp
         include/msgpack/v1/adaptor/cpp11/unordered_set.hpp
+        include/msgpack/v1/adaptor/cpp17/byte.hpp
+        include/msgpack/v1/adaptor/cpp17/carray_byte.hpp
         include/msgpack/v1/adaptor/cpp17/optional.hpp
         include/msgpack/v1/adaptor/cpp17/string_view.hpp
+        include/msgpack/v1/adaptor/cpp17/vector_byte.hpp
         include/msgpack/v1/adaptor/define.hpp
         include/msgpack/v1/adaptor/define_decl.hpp
         include/msgpack/v1/adaptor/deque.hpp
diff --git a/ci/build_cmake.sh b/ci/build_cmake.sh
index ec56eb1e..820ec543 100755
--- a/ci/build_cmake.sh
+++ b/ci/build_cmake.sh
@@ -23,7 +23,7 @@ else
     export BIT32="OFF"
 fi
 
-cmake -DMSGPACK_CXX11=${CXX11} -DMSGPACK_32BIT=${BIT32} -DMSGPACK_BOOST=${BOOST} -DBUILD_SHARED_LIBS=${SHARED} -DMSGPACK_CHAR_SIGN=${CHAR_SIGN} -DMSGPACK_DEFAULT_API_VERSION=${API_VERSION} -DMSGPACK_USE_X3_PARSE=${X3_PARSE} ..
+cmake -DMSGPACK_CXX11=${CXX11} -DMSGPACK_CXX17=${CXX17} -DMSGPACK_32BIT=${BIT32} -DMSGPACK_BOOST=${BOOST} -DBUILD_SHARED_LIBS=${SHARED} -DMSGPACK_CHAR_SIGN=${CHAR_SIGN} -DMSGPACK_DEFAULT_API_VERSION=${API_VERSION} -DMSGPACK_USE_X3_PARSE=${X3_PARSE} ..
 
 ret=$?
 if [ $ret -ne 0 ]
@@ -39,7 +39,7 @@ then
     exit $ret
 fi
 
-make test
+ctest -VV
 
 ret=$?
 if [ $ret -ne 0 ]
diff --git a/ci/build_regression.sh b/ci/build_regression.sh
index 1cd3f175..fca09afd 100755
--- a/ci/build_regression.sh
+++ b/ci/build_regression.sh
@@ -22,7 +22,7 @@ then
     exit 1
 fi
 
-cmake -DMSGPACK_FUZZ_REGRESSION="ON" -DMSGPACK_CXX11="ON" -DMSGPACK_BOOST=${BOOST} -DMSGPACK_SAN=${MSGPACK_SAN} -v ..
+cmake -DMSGPACK_FUZZ_REGRESSION="ON" -DMSGPACK_CXX17="ON" -DMSGPACK_BOOST=${BOOST} -DMSGPACK_SAN=${MSGPACK_SAN} -v ..
 
 ret=$?
 if [ $ret -ne 0 ]
diff --git a/include/msgpack/adaptor/cpp17/byte.hpp b/include/msgpack/adaptor/cpp17/byte.hpp
new file mode 100644
index 00000000..eebaa960
--- /dev/null
+++ b/include/msgpack/adaptor/cpp17/byte.hpp
@@ -0,0 +1,16 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2018 KONDO Takatoshi
+//
+//    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)
+//
+
+#ifndef MSGPACK_TYPE_CPP17_BYTE_HPP
+#define MSGPACK_TYPE_CPP17_BYTE_HPP
+
+#include "msgpack/v1/adaptor/cpp17/byte.hpp"
+
+#endif // MSGPACK_TYPE_CPP17_BYTE_HPP
diff --git a/include/msgpack/adaptor/cpp17/carray_byte.hpp b/include/msgpack/adaptor/cpp17/carray_byte.hpp
new file mode 100644
index 00000000..c41bccac
--- /dev/null
+++ b/include/msgpack/adaptor/cpp17/carray_byte.hpp
@@ -0,0 +1,16 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2018 KONDO Takatoshi
+//
+//    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)
+//
+
+#ifndef MSGPACK_TYPE_CPP17_CARRAY_BYTE_HPP
+#define MSGPACK_TYPE_CPP17_CARRAY_BYTE_HPP
+
+#include "msgpack/v1/adaptor/cpp17/carray_byte.hpp"
+
+#endif // MSGPACK_TYPE_CPP17_CARRAY_BYTE_HPP
diff --git a/include/msgpack/adaptor/cpp17/vector_byte.hpp b/include/msgpack/adaptor/cpp17/vector_byte.hpp
new file mode 100644
index 00000000..8c5e6230
--- /dev/null
+++ b/include/msgpack/adaptor/cpp17/vector_byte.hpp
@@ -0,0 +1,16 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2018 KONDO Takatoshi
+//
+//    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)
+//
+
+#ifndef MSGPACK_TYPE_CPP17_VECTOR_BYTE_HPP
+#define MSGPACK_TYPE_CPP17_VECTOR_BYTE_HPP
+
+#include "msgpack/v1/adaptor/cpp17/vector_byte.hpp"
+
+#endif // MSGPACK_TYPE_CPP17_VECTOR_BYTE_HPP
diff --git a/include/msgpack/type.hpp b/include/msgpack/type.hpp
index 4248b2f9..1a866c56 100644
--- a/include/msgpack/type.hpp
+++ b/include/msgpack/type.hpp
@@ -51,6 +51,10 @@
 #include "adaptor/cpp17/string_view.hpp"
 #endif // MSGPACK_HAS_INCLUDE(<string_view>)
 
+#include "adaptor/cpp17/byte.hpp"
+#include "adaptor/cpp17/carray_byte.hpp"
+#include "adaptor/cpp17/vector_byte.hpp"
+
 #endif // defined(MSGPACK_USE_CPP03)
 
 #if defined(MSGPACK_USE_BOOST)
diff --git a/include/msgpack/v1/adaptor/cpp17/byte.hpp b/include/msgpack/v1/adaptor/cpp17/byte.hpp
new file mode 100644
index 00000000..a1d12047
--- /dev/null
+++ b/include/msgpack/v1/adaptor/cpp17/byte.hpp
@@ -0,0 +1,74 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2018 KONDO Takatoshi
+//
+//    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)
+//
+#ifndef MSGPACK_V1_TYPE_BYTE_HPP
+#define MSGPACK_V1_TYPE_BYTE_HPP
+
+#if __cplusplus >= 201703
+
+#include "msgpack/versioning.hpp"
+#include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/adaptor/int_decl.hpp"
+#include "msgpack/object.hpp"
+
+#include <cstddef>
+
+namespace msgpack {
+
+/// @cond
+MSGPACK_API_VERSION_NAMESPACE(v1) {
+/// @endcond
+
+namespace adaptor {
+
+template <>
+struct convert<std::byte> {
+    msgpack::object const& operator()(msgpack::object const& o, std::byte& v) const {
+        v = static_cast<std::byte>(type::detail::convert_integer<unsigned char>(o));
+        return o;
+    }
+};
+
+template <>
+struct pack<std::byte> {
+    template <typename Stream>
+    msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, std::byte v) const {
+        o.pack_unsigned_char(static_cast<unsigned char>(v));
+        return o;
+    }
+};
+
+template <>
+struct object<std::byte> {
+    void operator()(msgpack::object& o, std::byte v) const {
+        o.type = msgpack::type::POSITIVE_INTEGER;
+        o.via.u64 = static_cast<unsigned char>(v);
+    }
+};
+
+template <>
+struct object_with_zone<std::byte> {
+    void operator()(msgpack::object::with_zone& o, const std::byte& v) const {
+        static_cast<msgpack::object&>(o) << v;
+    }
+};
+
+
+} // namespace adaptor
+
+/// @cond
+} // MSGPACK_API_VERSION_NAMESPACE(v1)
+/// @endcond
+
+} // namespace msgpack
+
+#endif // __cplusplus >= 201703
+
+#endif // MSGPACK_V1_TYPE_BYTE_HPP
diff --git a/include/msgpack/v1/adaptor/cpp17/carray_byte.hpp b/include/msgpack/v1/adaptor/cpp17/carray_byte.hpp
new file mode 100644
index 00000000..e2be6bc0
--- /dev/null
+++ b/include/msgpack/v1/adaptor/cpp17/carray_byte.hpp
@@ -0,0 +1,109 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2018 KONDO Takatoshi
+//
+//    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)
+//
+#ifndef MSGPACK_V1_TYPE_CARRAY_BYTE_HPP
+#define MSGPACK_V1_TYPE_CARRAY_BYTE_HPP
+
+#if __cplusplus >= 201703
+
+#include "msgpack/versioning.hpp"
+#include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/adaptor/check_container_size.hpp"
+
+#include <cstring>
+#include <cstddef>
+
+namespace msgpack {
+
+/// @cond
+MSGPACK_API_VERSION_NAMESPACE(v1) {
+/// @endcond
+
+namespace adaptor {
+
+template <std::size_t N>
+struct convert<std::byte[N]> {
+    msgpack::object const& operator()(msgpack::object const& o, std::byte(&v)[N]) const {
+        switch (o.type) {
+        case msgpack::type::BIN:
+            if (o.via.bin.size > N) { throw msgpack::type_error(); }
+            std::memcpy(v, o.via.bin.ptr, o.via.bin.size);
+            break;
+        case msgpack::type::STR:
+            if (o.via.str.size > N) { throw msgpack::type_error(); }
+            std::memcpy(v, o.via.str.ptr, o.via.str.size);
+            if (o.via.str.size < N) v[o.via.str.size] = std::byte{'\0'};
+            break;
+        default:
+            throw msgpack::type_error();
+            break;
+        }
+        return o;
+    }
+};
+
+template <std::size_t N>
+struct pack<std::byte[N]> {
+    template <typename Stream>
+    msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const std::byte(&v)[N]) const {
+        std::byte const* p = v;
+        uint32_t size = checked_get_container_size(N);
+        o.pack_bin(size);
+        o.pack_bin_body(reinterpret_cast<char const*>(p), size);
+        return o;
+    }
+};
+
+template <std::size_t N>
+struct pack<const std::byte[N]> {
+    template <typename Stream>
+    msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const std::byte(&v)[N]) const {
+        std::byte const* p = v;
+        uint32_t size = checked_get_container_size(N);
+        o.pack_bin(size);
+        o.pack_bin_body(reinterpret_cast<char const*>(p), size);
+        return o;
+    }
+};
+
+template <std::size_t N>
+struct object_with_zone<std::byte[N]> {
+    void operator()(msgpack::object::with_zone& o, const std::byte(&v)[N]) const {
+        uint32_t size = checked_get_container_size(N);
+        o.type = msgpack::type::BIN;
+        char* ptr = static_cast<char*>(o.zone.allocate_align(size, MSGPACK_ZONE_ALIGNOF(char)));
+        o.via.bin.ptr = ptr;
+        o.via.bin.size = size;
+        std::memcpy(ptr, v, size);
+    }
+};
+
+template <std::size_t N>
+struct object_with_zone<const std::byte[N]> {
+    void operator()(msgpack::object::with_zone& o, const std::byte(&v)[N]) const {
+        uint32_t size = checked_get_container_size(N);
+        o.type = msgpack::type::BIN;
+        char* ptr = static_cast<char*>(o.zone.allocate_align(size, MSGPACK_ZONE_ALIGNOF(char)));
+        o.via.bin.ptr = ptr;
+        o.via.bin.size = size;
+        std::memcpy(ptr, v, size);
+    }
+};
+
+} // namespace adaptor
+
+/// @cond
+} // MSGPACK_API_VERSION_NAMESPACE(v1)
+/// @endcond
+
+} // namespace msgpack
+
+#endif // __cplusplus >= 201703
+
+#endif // MSGPACK_V1_TYPE_CARRAY_BYTE_HPP
diff --git a/include/msgpack/v1/adaptor/cpp17/vector_byte.hpp b/include/msgpack/v1/adaptor/cpp17/vector_byte.hpp
new file mode 100644
index 00000000..e291667e
--- /dev/null
+++ b/include/msgpack/v1/adaptor/cpp17/vector_byte.hpp
@@ -0,0 +1,119 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2018 KONDO Takatoshi
+//
+//    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)
+//
+#ifndef MSGPACK_V1_TYPE_VECTOR_BYTE_HPP
+#define MSGPACK_V1_TYPE_VECTOR_BYTE_HPP
+
+#if __cplusplus >= 201703
+
+#include "msgpack/versioning.hpp"
+#include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/adaptor/check_container_size.hpp"
+
+#include <vector>
+#include <cstring>
+#include <cstddef>
+
+namespace msgpack {
+
+/// @cond
+MSGPACK_API_VERSION_NAMESPACE(v1) {
+/// @endcond
+
+namespace adaptor {
+
+template <typename Alloc>
+struct convert<std::vector<std::byte, Alloc> > {
+    msgpack::object const& operator()(msgpack::object const& o, std::vector<std::byte, Alloc>& v) const {
+        switch (o.type) {
+        case msgpack::type::BIN:
+            v.resize(o.via.bin.size);
+            if (o.via.bin.size != 0) {
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)) && !defined(__clang__)
+                std::memcpy(&v.front(), o.via.bin.ptr, o.via.bin.size);
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)) && !defined(__clang__)
+            }
+            break;
+        case msgpack::type::STR:
+            v.resize(o.via.str.size);
+            if (o.via.str.size != 0) {
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)) && !defined(__clang__)
+                std::memcpy(&v.front(), o.via.str.ptr, o.via.str.size);
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)) && !defined(__clang__)
+            }
+            break;
+        default:
+            throw msgpack::type_error();
+            break;
+        }
+        return o;
+    }
+};
+
+template <typename Alloc>
+struct pack<std::vector<std::byte, Alloc> > {
+    template <typename Stream>
+    msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const std::vector<std::byte, Alloc>& v) const {
+        uint32_t size = checked_get_container_size(v.size());
+        o.pack_bin(size);
+        if (size != 0) {
+            o.pack_bin_body(reinterpret_cast<char const*>(&v.front()), size);
+        }
+
+        return o;
+    }
+};
+
+template <typename Alloc>
+struct object<std::vector<std::byte, Alloc> > {
+    void operator()(msgpack::object& o, const std::vector<std::byte, Alloc>& v) const {
+        uint32_t size = checked_get_container_size(v.size());
+        o.type = msgpack::type::BIN;
+        if (size != 0) {
+            o.via.bin.ptr = reinterpret_cast<char const*>(&v.front());
+        }
+        o.via.bin.size = size;
+    }
+};
+
+template <typename Alloc>
+struct object_with_zone<std::vector<std::byte, Alloc> > {
+    void operator()(msgpack::object::with_zone& o, const std::vector<std::byte, Alloc>& v) const {
+        uint32_t size = checked_get_container_size(v.size());
+        o.type = msgpack::type::BIN;
+        o.via.bin.size = size;
+        if (size != 0) {
+            char* ptr = static_cast<char*>(o.zone.allocate_align(size, MSGPACK_ZONE_ALIGNOF(char)));
+            o.via.bin.ptr = ptr;
+            std::memcpy(ptr, &v.front(), size);
+        }
+    }
+};
+
+} // namespace adaptor
+
+/// @cond
+} // MSGPACK_API_VERSION_NAMESPACE(v1)
+/// @endcond
+
+} // namespace msgpack
+
+#endif // __cplusplus >= 201703
+
+#endif // MSGPACK_V1_TYPE_VECTOR_BYTE_HPP
diff --git a/test/msgpack_cpp17.cpp b/test/msgpack_cpp17.cpp
index 0da11344..36fa82b8 100644
--- a/test/msgpack_cpp17.cpp
+++ b/test/msgpack_cpp17.cpp
@@ -10,6 +10,8 @@
 
 // C++17
 
+#if MSGPACK_HAS_INCLUDE(<optional>)
+
 TEST(MSGPACK_CPP17, optional_pack_convert_nil)
 {
     std::stringstream ss;
@@ -171,7 +173,11 @@ TEST(MSGPACK_CPP17, optional_pack_convert_no_def_con)
     EXPECT_TRUE(val1 == val2);
 }
 
-TEST(MSGPACK_CPP17, string_view_pack_convert_string_view)
+#endif // MSGPACK_HAS_INCLUDE(<optional>)
+
+#if MSGPACK_HAS_INCLUDE(<string_view>)
+
+TEST(MSGPACK_CPP17, string_view_pack_convert)
 {
     std::stringstream ss;
     std::string s = "ABC";
@@ -185,7 +191,7 @@ TEST(MSGPACK_CPP17, string_view_pack_convert_string_view)
     EXPECT_TRUE(val1 == val2);
 }
 
-TEST(MSGPACK_CPP17, string_view_object_strinf_view)
+TEST(MSGPACK_CPP17, string_view_object)
 {
     std::string s = "ABC";
     std::string_view val1(s);
@@ -194,7 +200,7 @@ TEST(MSGPACK_CPP17, string_view_object_strinf_view)
     EXPECT_TRUE(val1 == val2);
 }
 
-TEST(MSGPACK_CPP17, string_view_object_with_zone_string_view)
+TEST(MSGPACK_CPP17, string_view_object_with_zone)
 {
     msgpack::zone z;
     std::string s = "ABC";
@@ -204,4 +210,119 @@ TEST(MSGPACK_CPP17, string_view_object_with_zone_string_view)
     EXPECT_TRUE(val1 == val2);
 }
 
+#endif // MSGPACK_HAS_INCLUDE(<string_view>)
+
+TEST(MSGPACK_CPP17, byte_pack_convert)
+{
+    std::stringstream ss;
+    std::byte val1{0xff};
+
+    msgpack::pack(ss, val1);
+
+    msgpack::object_handle oh;
+    msgpack::unpack(oh, ss.str().data(), ss.str().size());
+    std::byte val2 = oh.get().as<std::byte>();
+    EXPECT_EQ(val1, val2);
+}
+
+TEST(MSGPACK_CPP17, byte_object)
+{
+    std::byte val1{0x00};
+    msgpack::object obj(val1);
+    std::byte val2 = obj.as<std::byte>();
+    EXPECT_EQ(val1, val2);
+}
+
+TEST(MSGPACK_CPP17, byte_object_with_zone)
+{
+    msgpack::zone z;
+    std::byte val1{80};
+    msgpack::object obj(val1, z);
+    std::byte val2 = obj.as<std::byte>();
+    EXPECT_EQ(val1, val2);
+}
+
+TEST(MSGPACK_CPP17, vector_byte_pack_convert)
+{
+    std::stringstream ss;
+    std::vector<std::byte> val1{
+        std::byte{0x01}, std::byte{0x02}, std::byte{0x7f}, std::byte{0x80}, std::byte{0xff}
+    };
+
+    msgpack::pack(ss, val1);
+
+    char packed[] = { char(0xc4), char(0x05), char(0x01), char(0x02), char(0x7f), char(0x80), char(0xff) };
+    for (size_t i = 0; i != sizeof(packed); ++i) {
+        EXPECT_EQ(ss.str()[i], packed[i]);
+    }
+
+    msgpack::object_handle oh;
+    msgpack::unpack(oh, ss.str().data(), ss.str().size());
+    std::vector<std::byte> val2 = oh.get().as<std::vector<std::byte>>();
+    EXPECT_EQ(val1, val2);
+}
+
+TEST(MSGPACK_CPP17, vector_byte_object)
+{
+    std::vector<std::byte> val1{
+        std::byte{0x01}, std::byte{0x02}, std::byte{0x7f}, std::byte{0x80}, std::byte{0xff}
+    };
+
+    // Caller need to manage val1's lifetime. The Data is not copied.
+    msgpack::object obj(val1);
+
+    std::vector<std::byte> val2 = obj.as<std::vector<std::byte>>();
+    EXPECT_EQ(val1, val2);
+}
+
+TEST(MSGPACK_CPP17, vector_byte_object_with_zone)
+{
+    msgpack::zone z;
+    std::vector<std::byte> val1{
+        std::byte{0x01}, std::byte{0x02}, std::byte{0x7f}, std::byte{0x80}, std::byte{0xff}
+    };
+    msgpack::object obj(val1, z);
+
+    std::vector<std::byte> val2 = obj.as<std::vector<std::byte>>();
+    EXPECT_EQ(val1, val2);
+}
+
+TEST(MSGPACK_CPP17, carray_byte_pack_convert)
+{
+    std::stringstream ss;
+    std::byte val1[] = {
+        std::byte{0x01}, std::byte{0x02}, std::byte{0x7f}, std::byte{0x80}, std::byte{0xff}
+    };
+
+    msgpack::pack(ss, val1);
+
+    char packed[] = { char(0xc4), char(0x05), char(0x01), char(0x02), char(0x7f), char(0x80), char(0xff) };
+    for (size_t i = 0; i != sizeof(packed); ++i) {
+        EXPECT_EQ(ss.str()[i], packed[i]);
+    }
+
+    msgpack::object_handle oh;
+    msgpack::unpack(oh, ss.str().data(), ss.str().size());
+    std::byte val2[sizeof(val1)];
+    oh.get().convert(val2);
+    for (size_t i = 0; i != sizeof(val1); ++i) {
+        EXPECT_EQ(val1[i], val2[i]);
+    }
+}
+
+TEST(MSGPACK_CPP17, carray_byte_object_with_zone)
+{
+    msgpack::zone z;
+    std::byte val1[] = {
+        std::byte{0x01}, std::byte{0x02}, std::byte{0x7f}, std::byte{0x80}, std::byte{0xff}
+    };
+    msgpack::object obj(val1, z);
+
+    std::byte val2[sizeof(val1)];
+    obj.convert(val2);
+    for (size_t i = 0; i != sizeof(val1); ++i) {
+        EXPECT_EQ(val1[i], val2[i]);
+    }
+}
+
 #endif // !defined(MSGPACK_USE_CPP03) && __cplusplus >= 201703