Index: boost/archive/basic_archive.hpp
===================================================================
--- boost/archive/basic_archive.hpp	(revision 82766)
+++ boost/archive/basic_archive.hpp	(working copy)
@@ -236,7 +236,8 @@
     no_codecvt = 2,  // suppress alteration of codecvt facet
     no_xml_tag_checking = 4,   // suppress checking of xml tags
     no_tracking = 8,           // suppress ALL tracking
-    flags_last = 8
+    skip_unknown_tail_tags = 16,  // skip unknown tags in input file before closing tag which aren't listed in serialize() method
+    flags_last = 16
 };
 
 BOOST_ARCHIVE_DECL(const char *)
Index: boost/archive/basic_text_iprimitive.hpp
===================================================================
--- boost/archive/basic_text_iprimitive.hpp	(revision 82766)
+++ boost/archive/basic_text_iprimitive.hpp	(working copy)
@@ -75,6 +75,8 @@
     io::ios_flags_saver flags_saver;
     io::ios_precision_saver precision_saver;
 
+    typedef BOOST_DEDUCED_TYPENAME IStream::char_type StreamCharType;
+
     #ifndef BOOST_NO_STD_LOCALE
     boost::scoped_ptr<std::locale> archive_locale;
     basic_streambuf_locale_saver<
Index: boost/archive/impl/basic_xml_iarchive.ipp
===================================================================
--- boost/archive/impl/basic_xml_iarchive.ipp	(revision 82766)
+++ boost/archive/impl/basic_xml_iarchive.ipp	(working copy)
@@ -48,9 +48,37 @@
         return;
     bool result = this->This()->gimpl->parse_end_tag(this->This()->get_is());
     if(true != result){
+      if( 0 == (this->get_flags() & skip_unknown_tail_tags) ){
         boost::serialization::throw_exception(
             archive_exception(archive_exception::input_stream_error)
         );
+      }
+      
+      //We haven't read closing tag, therefore we've read opening one and 
+      //we should skip all tags, include nested, up to original closing tag
+       
+      //Current nesting level (how many closing tags we have to skip).
+      //When it becomes 0 we'll find closing tag with name `name`, 
+      unsigned int skipDepth = 2;
+      
+      //Contents of element is not used
+      std::basic_string<BOOST_DEDUCED_TYPENAME Archive::StreamCharType> data;
+      
+      //We've just found opening tag and we have to skip its contents
+      this->This()->gimpl->parse_string( this->This()->get_is(), data ); 
+      
+      for(;;){
+        //Is this opening tag?        
+        if( this->This()->gimpl->parse_end_tag(this->This()->get_is()) ){
+          if( 0 == --skipDepth )
+            break;
+        }
+        else{
+          //No, we've found opening one. Let's skip the content
+          ++skipDepth;
+          this->This()->gimpl->parse_string( this->This()->get_is(), data ); 
+        }
+      }
     }
     
     // don't check start tag at highest level