diff --git a/doc/release_notes.html b/doc/release_notes.html
index 87f2b00..39170b9 100644
--- a/doc/release_notes.html
+++ b/doc/release_notes.html
@@ -73,6 +73,16 @@ Acknowledgements
 
 <p>
 <ul>
+  <li>Serialization now uses <code>unsigned long</code> instead of
+    <a href="../../serialization/doc/wrappers.html#collection_size_type"><code>collection_size_type</code></a>,
+    and <code>multi_index_container</code> serialization
+    <a href="../../serialization/doc/tutorial.html#versioning">class version</a> has been
+    bumped from 2 to 3 to reflect this change.
+    Reading old archives may fail for custom archive types giving special treatment to
+    <code>collection_size_type</code> values: if this is the case, globally define
+    the macro <code>BOOST_MULTI_INDEX_ENABLE_SERIALIZATION_COMPATIBILITY_V2</code>
+    to ensure backwards compatibility in reading operations.
+  </li>
   <li>Maintenance work.</li>
 </ul>
 </p>
@@ -764,9 +774,9 @@ Acknowledgements
 
 <br>
 
-<p>Revised December 28th 2022</p>
+<p>Revised February 26th 2023</p>
 
-<p>&copy; Copyright 2003-2022 Joaqu&iacute;n M L&oacute;pez Mu&ntilde;oz.
+<p>&copy; Copyright 2003-2023 Joaqu&iacute;n M L&oacute;pez Mu&ntilde;oz.
 Distributed under the Boost Software 
 License, Version 1.0. (See accompanying file <a href="../../../LICENSE_1_0.txt">
 LICENSE_1_0.txt</a> or copy at <a href="http://www.boost.org/LICENSE_1_0.txt">
diff --git a/include/boost/multi_index/detail/archive_constructed.hpp b/include/boost/multi_index/detail/archive_constructed.hpp
index 43d3687..0b94d1f 100644
--- a/include/boost/multi_index/detail/archive_constructed.hpp
+++ b/include/boost/multi_index/detail/archive_constructed.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2022 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -16,7 +16,7 @@
 #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
 #include <boost/core/no_exceptions_support.hpp>
 #include <boost/core/noncopyable.hpp>
-#include <boost/serialization/serialization.hpp>
+#include <boost/core/serialization.hpp>
 #include <boost/type_traits/aligned_storage.hpp>
 #include <boost/type_traits/alignment_of.hpp> 
 
@@ -34,7 +34,7 @@ struct archive_constructed:private noncopyable
   template<class Archive>
   archive_constructed(Archive& ar,const unsigned int version)
   {
-    serialization::load_construct_data_adl(ar,&get(),version);
+    core::load_construct_data_adl(ar,&get(),version);
     BOOST_TRY{
       ar>>get();
     }
@@ -48,9 +48,9 @@ struct archive_constructed:private noncopyable
   template<class Archive>
   archive_constructed(const char* name,Archive& ar,const unsigned int version)
   {
-    serialization::load_construct_data_adl(ar,&get(),version);
+    core::load_construct_data_adl(ar,&get(),version);
     BOOST_TRY{
-      ar>>serialization::make_nvp(name,get());
+      ar>>core::make_nvp(name,get());
     }
     BOOST_CATCH(...){
       (&get())->~T();
diff --git a/include/boost/multi_index/detail/bad_archive_exception.hpp b/include/boost/multi_index/detail/bad_archive_exception.hpp
new file mode 100644
index 0000000..2db4a39
--- /dev/null
+++ b/include/boost/multi_index/detail/bad_archive_exception.hpp
@@ -0,0 +1,36 @@
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
+ * 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)
+ *
+ * See http://www.boost.org/libs/multi_index for library home page.
+ */
+
+#ifndef BOOST_MULTI_INDEX_DETAIL_BAD_ARCHIVE_EXCEPTION_HPP
+#define BOOST_MULTI_INDEX_DETAIL_BAD_ARCHIVE_EXCEPTION_HPP
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
+#include <stdexcept>
+
+namespace boost{
+
+namespace multi_index{
+
+namespace detail{
+
+struct bad_archive_exception:std::runtime_error
+{
+  bad_archive_exception():std::runtime_error("Invalid or corrupted archive"){}
+};
+
+} /* namespace multi_index::detail */
+
+} /* namespace multi_index */
+
+} /* namespace boost */
+
+#endif
diff --git a/include/boost/multi_index/detail/bidir_node_iterator.hpp b/include/boost/multi_index/detail/bidir_node_iterator.hpp
index adfb77d..5cc49e2 100644
--- a/include/boost/multi_index/detail/bidir_node_iterator.hpp
+++ b/include/boost/multi_index/detail/bidir_node_iterator.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2018 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -17,8 +17,7 @@
 #include <boost/operators.hpp>
 
 #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
-#include <boost/serialization/nvp.hpp>
-#include <boost/serialization/split_member.hpp>
+#include <boost/core/serialization.hpp>
 #endif
 
 namespace boost{
@@ -67,7 +66,11 @@ public:
    * see explanation in safe_mode_iterator notes in safe_mode.hpp.
    */
 
-  BOOST_SERIALIZATION_SPLIT_MEMBER()
+  template<class Archive>
+  void serialize(Archive& ar,const unsigned int version)
+  {
+    core::split_member(ar,*this,version);
+  }
 
   typedef typename Node::base_type node_base_type;
 
@@ -75,14 +78,14 @@ public:
   void save(Archive& ar,const unsigned int)const
   {
     node_base_type* bnode=node;
-    ar<<serialization::make_nvp("pointer",bnode);
+    ar<<core::make_nvp("pointer",bnode);
   }
 
   template<class Archive>
   void load(Archive& ar,const unsigned int)
   {
     node_base_type* bnode;
-    ar>>serialization::make_nvp("pointer",bnode);
+    ar>>core::make_nvp("pointer",bnode);
     node=static_cast<Node*>(bnode);
   }
 #endif
diff --git a/include/boost/multi_index/detail/bucket_array.hpp b/include/boost/multi_index/detail/bucket_array.hpp
index 04392d1..5d9efb4 100644
--- a/include/boost/multi_index/detail/bucket_array.hpp
+++ b/include/boost/multi_index/detail/bucket_array.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2022 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -27,8 +27,8 @@
 #include <limits.h>
 
 #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
-#include <boost/archive/archive_exception.hpp>
-#include <boost/serialization/access.hpp>
+#include <boost/core/serialization.hpp>
+#include <boost/multi_index/detail/bad_archive_exception.hpp>
 #include <boost/throw_exception.hpp> 
 #endif
 
@@ -236,8 +236,7 @@ inline void load_construct_data(
   Archive&,boost::multi_index::detail::bucket_array<Allocator>*,
   const unsigned int)
 {
-  throw_exception(
-    archive::archive_exception(archive::archive_exception::other_exception));
+  throw_exception(bad_archive_exception());
 }
 
 #if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
diff --git a/include/boost/multi_index/detail/hash_index_iterator.hpp b/include/boost/multi_index/detail/hash_index_iterator.hpp
index f5b0d0e..0bbcbdf 100644
--- a/include/boost/multi_index/detail/hash_index_iterator.hpp
+++ b/include/boost/multi_index/detail/hash_index_iterator.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2020 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -17,9 +17,7 @@
 #include <boost/operators.hpp>
 
 #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
-#include <boost/serialization/nvp.hpp>
-#include <boost/serialization/split_member.hpp>
-#include <boost/serialization/version.hpp>
+#include <boost/core/serialization.hpp>
 #endif
 
 namespace boost{
@@ -67,7 +65,11 @@ public:
    * see explanation in safe_mode_iterator notes in safe_mode.hpp.
    */
   
-  BOOST_SERIALIZATION_SPLIT_MEMBER()
+  template<class Archive>
+  void serialize(Archive& ar,const unsigned int version)
+  {
+    core::split_member(ar,*this,version);
+  }
 
   typedef typename Node::base_type node_base_type;
 
@@ -75,7 +77,7 @@ public:
   void save(Archive& ar,const unsigned int)const
   {
     node_base_type* bnode=node;
-    ar<<serialization::make_nvp("pointer",bnode);
+    ar<<core::make_nvp("pointer",bnode);
   }
 
   template<class Archive>
@@ -89,11 +91,11 @@ public:
     Archive& ar,const unsigned int version,hashed_index_global_iterator_tag)
   {
     node_base_type* bnode;
-    ar>>serialization::make_nvp("pointer",bnode);
+    ar>>core::make_nvp("pointer",bnode);
     node=static_cast<Node*>(bnode);
     if(version<1){
       BucketArray* throw_away; /* consume unused ptr */
-      ar>>serialization::make_nvp("pointer",throw_away);
+      ar>>core::make_nvp("pointer",throw_away);
     }
   }
 
@@ -102,11 +104,11 @@ public:
     Archive& ar,const unsigned int version,hashed_index_local_iterator_tag)
   {
     node_base_type* bnode;
-    ar>>serialization::make_nvp("pointer",bnode);
+    ar>>core::make_nvp("pointer",bnode);
     node=static_cast<Node*>(bnode);
     if(version<1){
       BucketArray* buckets;
-      ar>>serialization::make_nvp("pointer",buckets);
+      ar>>core::make_nvp("pointer",buckets);
       if(buckets&&node&&node->impl()==buckets->end()->prior()){
         /* end local_iterators used to point to end node, now they are null */
         node=0;
diff --git a/include/boost/multi_index/detail/index_loader.hpp b/include/boost/multi_index/detail/index_loader.hpp
index cab79f0..93e0934 100644
--- a/include/boost/multi_index/detail/index_loader.hpp
+++ b/include/boost/multi_index/detail/index_loader.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2022 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -15,11 +15,11 @@
 
 #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
 #include <algorithm>
-#include <boost/archive/archive_exception.hpp>
 #include <boost/core/noncopyable.hpp>
+#include <boost/core/serialization.hpp>
 #include <boost/multi_index/detail/auto_space.hpp>
+#include <boost/multi_index/detail/bad_archive_exception.hpp>
 #include <boost/multi_index/detail/raw_ptr.hpp>
-#include <boost/serialization/nvp.hpp>
 #include <boost/throw_exception.hpp> 
 #include <cstddef>
 
@@ -30,7 +30,8 @@ namespace multi_index{
 namespace detail{
 
 /* Counterpart of index_saver (check index_saver.hpp for serialization
- * details.)* multi_index_container is in charge of supplying the info about
+ * details.)
+ * multi_index_container is in charge of supplying the info about
  * the base sequence, and each index can subsequently load itself using the
  * const interface of index_loader.
  */
@@ -47,14 +48,14 @@ public:
   template<class Archive>
   void add(Node* node,Archive& ar,const unsigned int)
   {
-    ar>>serialization::make_nvp("position",*node);
+    ar>>core::make_nvp("position",*node);
     entries()[n++]=node;
   }
 
   template<class Archive>
   void add_track(Node* node,Archive& ar,const unsigned int)
   {
-    ar>>serialization::make_nvp("position",*node);
+    ar>>core::make_nvp("position",*node);
   }
 
   /* A rearranger is passed two nodes, and is expected to
@@ -102,7 +103,7 @@ private:
   FinalNode* unchecked_load_node(Archive& ar)const
   {
     Node* node=0;
-    ar>>serialization::make_nvp("pointer",node);
+    ar>>core::make_nvp("pointer",node);
     return static_cast<FinalNode*>(node);
   }
 
@@ -110,7 +111,7 @@ private:
   FinalNode* load_node(Archive& ar)const
   {
     Node* node=0;
-    ar>>serialization::make_nvp("pointer",node);
+    ar>>core::make_nvp("pointer",node);
     check_node(node);
     return static_cast<FinalNode*>(node);
   }
@@ -118,9 +119,7 @@ private:
   void check_node(Node* node)const
   {
     if(node!=0&&!std::binary_search(entries(),entries()+size_,node)){
-      throw_exception(
-        archive::archive_exception(
-          archive::archive_exception::other_exception));
+      throw_exception(bad_archive_exception());
     }
   }
 
diff --git a/include/boost/multi_index/detail/index_node_base.hpp b/include/boost/multi_index/detail/index_node_base.hpp
index 1a1f0ca..d3229df 100644
--- a/include/boost/multi_index/detail/index_node_base.hpp
+++ b/include/boost/multi_index/detail/index_node_base.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2016 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -18,8 +18,8 @@
 #include <boost/type_traits/alignment_of.hpp> 
 
 #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
-#include <boost/archive/archive_exception.hpp>
-#include <boost/serialization/access.hpp>
+#include <boost/core/serialization.hpp>
+#include <boost/multi_index/detail/bad_archive_exception.hpp>
 #include <boost/throw_exception.hpp> 
 #endif
 
@@ -117,8 +117,7 @@ inline void load_construct_data(
   Archive&,boost::multi_index::detail::index_node_base<Value,Allocator>*,
   const unsigned int)
 {
-  throw_exception(
-    archive::archive_exception(archive::archive_exception::other_exception));
+  throw_exception(bad_archive_exception());
 }
 
 #if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
diff --git a/include/boost/multi_index/detail/index_saver.hpp b/include/boost/multi_index/detail/index_saver.hpp
index 0f7b6ef..7126169 100644
--- a/include/boost/multi_index/detail/index_saver.hpp
+++ b/include/boost/multi_index/detail/index_saver.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2022 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -16,7 +16,7 @@
 #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
 #include <boost/multi_index/detail/index_matcher.hpp>
 #include <boost/core/noncopyable.hpp>
-#include <boost/serialization/nvp.hpp>
+#include <boost/core/serialization.hpp>
 #include <cstddef>
 
 namespace boost{
@@ -43,14 +43,14 @@ public:
   template<class Archive>
   void add(Node* node,Archive& ar,const unsigned int)
   {
-    ar<<serialization::make_nvp("position",*node);
+    ar<<core::make_nvp("position",*node);
     alg.add(node);
   }
 
   template<class Archive>
   void add_track(Node* node,Archive& ar,const unsigned int)
   {
-    ar<<serialization::make_nvp("position",*node);
+    ar<<core::make_nvp("position",*node);
   }
 
   template<typename IndexIterator,class Archive>
@@ -120,7 +120,7 @@ private:
   template<typename Archive>
   static void save_node(Node* node,Archive& ar)
   {
-    ar<<serialization::make_nvp("pointer",node);
+    ar<<core::make_nvp("pointer",node);
   }
 
   index_matcher::algorithm<Node,Allocator> alg;
diff --git a/include/boost/multi_index/detail/ord_index_impl.hpp b/include/boost/multi_index/detail/ord_index_impl.hpp
index 93d47df..f7e6ced 100644
--- a/include/boost/multi_index/detail/ord_index_impl.hpp
+++ b/include/boost/multi_index/detail/ord_index_impl.hpp
@@ -80,8 +80,8 @@
 #endif
 
 #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
-#include <boost/archive/archive_exception.hpp>
 #include <boost/bind/bind.hpp>
+#include <boost/multi_index/detail/bad_archive_exception.hpp>
 #include <boost/multi_index/detail/duplicates_iterator.hpp>
 #include <boost/throw_exception.hpp> 
 #endif
@@ -1513,9 +1513,7 @@ private:
     }
     else if(comp_(key(x->value()),key(position->value()))){
       /* inconsistent rearrangement */
-      throw_exception(
-        archive::archive_exception(
-          archive::archive_exception::other_exception));
+      throw_exception(bad_archive_exception());
     }
     else index_node_type::increment(position);
 
diff --git a/include/boost/multi_index/detail/rnd_node_iterator.hpp b/include/boost/multi_index/detail/rnd_node_iterator.hpp
index 49fc422..7149cb0 100644
--- a/include/boost/multi_index/detail/rnd_node_iterator.hpp
+++ b/include/boost/multi_index/detail/rnd_node_iterator.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2018 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -17,8 +17,7 @@
 #include <boost/operators.hpp>
 
 #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
-#include <boost/serialization/nvp.hpp>
-#include <boost/serialization/split_member.hpp>
+#include <boost/core/serialization.hpp>
 #endif
 
 namespace boost{
@@ -77,7 +76,11 @@ public:
    * see explanation in safe_mode_iterator notes in safe_mode.hpp.
    */
 
-  BOOST_SERIALIZATION_SPLIT_MEMBER()
+  template<class Archive>
+  void serialize(Archive& ar,const unsigned int version)
+  {
+    core::split_member(ar,*this,version);
+  }
 
   typedef typename Node::base_type node_base_type;
 
@@ -85,14 +88,14 @@ public:
   void save(Archive& ar,const unsigned int)const
   {
     node_base_type* bnode=node;
-    ar<<serialization::make_nvp("pointer",bnode);
+    ar<<core::make_nvp("pointer",bnode);
   }
 
   template<class Archive>
   void load(Archive& ar,const unsigned int)
   {
     node_base_type* bnode;
-    ar>>serialization::make_nvp("pointer",bnode);
+    ar>>core::make_nvp("pointer",bnode);
     node=static_cast<Node*>(bnode);
   }
 #endif
diff --git a/include/boost/multi_index/detail/safe_mode.hpp b/include/boost/multi_index/detail/safe_mode.hpp
index 0ba6b44..b3fed3d 100644
--- a/include/boost/multi_index/detail/safe_mode.hpp
+++ b/include/boost/multi_index/detail/safe_mode.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2022 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -127,8 +127,7 @@
 #include <boost/type_traits/is_same.hpp>
 
 #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
-#include <boost/serialization/split_member.hpp>
-#include <boost/serialization/version.hpp>
+#include <boost/core/serialization.hpp>
 #endif
 
 #if defined(BOOST_HAS_THREADS)
@@ -556,7 +555,11 @@ private:
 
   friend class boost::serialization::access;
 
-  BOOST_SERIALIZATION_SPLIT_MEMBER()
+  template<class Archive>
+  void serialize(Archive& ar,const unsigned int version)
+  {
+    core::split_member(ar,*this,version);
+  }
 
   template<class Archive>
   void save(Archive& ar,const unsigned int version)const
diff --git a/include/boost/multi_index/detail/serialization_version.hpp b/include/boost/multi_index/detail/serialization_version.hpp
index ccd8bb4..1d5f0c8 100644
--- a/include/boost/multi_index/detail/serialization_version.hpp
+++ b/include/boost/multi_index/detail/serialization_version.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2013 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -14,8 +14,7 @@
 #endif
 
 #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
-#include <boost/serialization/split_member.hpp>
-#include <boost/serialization/version.hpp>
+#include <boost/core/serialization.hpp>
 
 namespace boost{
 
@@ -42,7 +41,11 @@ struct serialization_version
 private:
   friend class boost::serialization::access;
 
-  BOOST_SERIALIZATION_SPLIT_MEMBER()
+  template<class Archive>
+  void serialize(Archive& ar,const unsigned int version)
+  {
+    core::split_member(ar,*this,version);
+  }
 
   template<class Archive>
   void save(Archive&,const unsigned int)const{}
diff --git a/include/boost/multi_index/hashed_index.hpp b/include/boost/multi_index/hashed_index.hpp
index 71543d0..d4ba37a 100644
--- a/include/boost/multi_index/hashed_index.hpp
+++ b/include/boost/multi_index/hashed_index.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2003-2021 Joaquin M Lopez Munoz.
+/* Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -55,7 +55,7 @@
 #endif
 
 #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
-#include <boost/serialization/nvp.hpp>
+#include <boost/core/serialization.hpp>
 #endif
 
 #if defined(BOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING)
@@ -1238,14 +1238,14 @@ BOOST_MULTI_INDEX_PROTECTED_IF_MEMBER_TEMPLATE_FRIENDS:
   void save_(
     Archive& ar,const unsigned int version,const index_saver_type& sm)const
   {
-    ar<<serialization::make_nvp("position",buckets);
+    ar<<core::make_nvp("position",buckets);
     super::save_(ar,version,sm);
   }
 
   template<typename Archive>
   void load_(Archive& ar,const unsigned int version,const index_loader_type& lm)
   {
-    ar>>serialization::make_nvp("position",buckets);
+    ar>>core::make_nvp("position",buckets);
     super::load_(ar,version,lm);
   }
 #endif
diff --git a/include/boost/multi_index_container.hpp b/include/boost/multi_index_container.hpp
index 9840a65..ac73754 100644
--- a/include/boost/multi_index_container.hpp
+++ b/include/boost/multi_index_container.hpp
@@ -1,6 +1,6 @@
 /* Multiply indexed container.
  *
- * Copyright 2003-2021 Joaquin M Lopez Munoz.
+ * Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -53,13 +53,18 @@
 #endif
 
 #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
+#include <boost/core/serialization.hpp>
 #include <boost/multi_index/detail/archive_constructed.hpp>
+#include <boost/multi_index/detail/bad_archive_exception.hpp>
 #include <boost/multi_index/detail/serialization_version.hpp>
-#include <boost/serialization/collection_size_type.hpp>
-#include <boost/serialization/nvp.hpp>
-#include <boost/serialization/split_member.hpp>
-#include <boost/serialization/version.hpp>
 #include <boost/throw_exception.hpp> 
+
+#if defined(BOOST_MULTI_INDEX_ENABLE_SERIALIZATION_COMPATIBILITY_V2)
+#define BOOST_MULTI_INDEX_BLOCK_BOOSTDEP_HEADER \
+  <boost/serialization/collection_size_type.hpp>
+#include BOOST_MULTI_INDEX_BLOCK_BOOSTDEP_HEADER
+#undef BOOST_MULTI_INDEX_BLOCK_BOOSTDEP_HEADER
+#endif
 #endif
 
 #if defined(BOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING)
@@ -1102,7 +1107,11 @@ BOOST_MULTI_INDEX_PROTECTED_IF_MEMBER_TEMPLATE_FRIENDS:
 
   friend class boost::serialization::access;
 
-  BOOST_SERIALIZATION_SPLIT_MEMBER()
+  template<class Archive>
+  void serialize(Archive& ar,const unsigned int version)
+  {
+    core::split_member(ar,*this,version);
+  }
 
   typedef typename super::index_saver_type        index_saver_type;
   typedef typename super::index_loader_type       index_loader_type;
@@ -1110,15 +1119,15 @@ BOOST_MULTI_INDEX_PROTECTED_IF_MEMBER_TEMPLATE_FRIENDS:
   template<class Archive>
   void save(Archive& ar,const unsigned int version)const
   {
-    const serialization::collection_size_type       s(size_());
+    const unsigned long                             s(size_());
     const detail::serialization_version<value_type> value_version;
-    ar<<serialization::make_nvp("count",s);
-    ar<<serialization::make_nvp("value_version",value_version);
+    ar<<core::make_nvp("count",s);
+    ar<<core::make_nvp("value_version",value_version);
 
     index_saver_type sm(bfm_allocator::member,s);
 
     for(iterator it=super::begin(),it_end=super::end();it!=it_end;++it){
-      serialization::save_construct_data_adl(
+      core::save_construct_data_adl(
         ar,boost::addressof(*it),value_version);
       ar<<serialization::make_nvp("item",*it);
       sm.add(it.get_node(),ar,version);
@@ -1134,21 +1143,30 @@ BOOST_MULTI_INDEX_PROTECTED_IF_MEMBER_TEMPLATE_FRIENDS:
     BOOST_MULTI_INDEX_CHECK_INVARIANT;
 
     clear_(); 
-    serialization::collection_size_type       s;
+    unsigned long                             s;
     detail::serialization_version<value_type> value_version;
     if(version<1){
       std::size_t sz;
-      ar>>serialization::make_nvp("count",sz);
-      s=static_cast<serialization::collection_size_type>(sz);
+      ar>>core::make_nvp("count",sz);
+      s=static_cast<unsigned long>(sz);
+    }
+    else if(version<3){
+#if defined(BOOST_MULTI_INDEX_ENABLE_SERIALIZATION_COMPATIBILITY_V2)
+      serialization::collection_size_type csz;
+      ar>>core::make_nvp("count",csz);
+      s=static_cast<unsigned long>(csz);
+#else
+      ar>>core::make_nvp("count",s);
+#endif
     }
     else{
-      ar>>serialization::make_nvp("count",s);
+      ar>>core::make_nvp("count",s);
     }
     if(version<2){
       value_version=0;
     }
     else{
-      ar>>serialization::make_nvp("value_version",value_version);
+      ar>>core::make_nvp("value_version",value_version);
     }
 
     index_loader_type lm(bfm_allocator::member,s);
@@ -1157,9 +1175,7 @@ BOOST_MULTI_INDEX_PROTECTED_IF_MEMBER_TEMPLATE_FRIENDS:
       detail::archive_constructed<Value> value("item",ar,value_version);
       std::pair<final_node_type*,bool> p=insert_rv_(
         value.get(),super::end().get_node());
-      if(!p.second)throw_exception(
-        archive::archive_exception(
-          archive::archive_exception::other_exception));
+      if(!p.second)throw_exception(detail::bad_archive_exception());
       ar.reset_object_address(
         boost::addressof(p.first->value()),boost::addressof(value.get()));
       lm.add(p.first,ar,version);
@@ -1550,6 +1566,9 @@ void swap(
 /* class version = 1 : we now serialize the size through
  * boost::serialization::collection_size_type.
  * class version = 2 : proper use of {save|load}_construct_data.
+ * class version = 3 : dropped boost::serialization::collection_size_type
+ * in favor of unsigned long --this allows us to provide serialization
+ * support without including any header from Boost.Serialization.
  */
 
 namespace serialization {
@@ -1558,7 +1577,7 @@ struct version<
   boost::multi_index_container<Value,IndexSpecifierList,Allocator>
 >
 {
-  BOOST_STATIC_CONSTANT(int,value=2);
+  BOOST_STATIC_CONSTANT(int,value=3);
 };
 } /* namespace serialization */
 #endif
diff --git a/test/pair_of_ints.hpp b/test/pair_of_ints.hpp
index 6089ffc..f4c31f8 100644
--- a/test/pair_of_ints.hpp
+++ b/test/pair_of_ints.hpp
@@ -1,6 +1,6 @@
 /* Used in Boost.MultiIndex tests.
  *
- * Copyright 2003-2010 Joaquin M Lopez Munoz.
+ * Copyright 2003-2023 Joaquin M Lopez Munoz.
  * 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)
@@ -12,7 +12,7 @@
 #define BOOST_MULTI_INDEX_TEST_PAIR_OF_INTS_HPP
 
 #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
-#include <boost/serialization/nvp.hpp>
+#include <boost/core/serialization.hpp>
 
 struct pair_of_ints
 {
@@ -66,8 +66,8 @@ namespace serialization{
 template<class Archive>
 void serialize(Archive& ar,pair_of_ints& p,const unsigned int)
 {
-  ar&boost::serialization::make_nvp("first",p.first);
-  ar&boost::serialization::make_nvp("second",p.second);
+  ar&boost::core::make_nvp("first",p.first);
+  ar&boost::core::make_nvp("second",p.second);
 }
 
 #if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)