diff -uNr 0000-OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/RestHttpDevice/connection.cpp asio-OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/RestHttpDevice/connection.cpp
--- 0000-OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/RestHttpDevice/connection.cpp	2020-01-31 05:03:07.000000000 -0600
+++ asio-OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/RestHttpDevice/connection.cpp	2021-09-29 12:38:12.292620494 -0500
@@ -10,7 +10,6 @@
 
 #include "connection.hpp"
 #include <vector>
-#include <boost/bind.hpp>
 #include "request_handler.hpp"
 #include <osg/Notify>
 
@@ -39,9 +38,9 @@
   OSG_DEBUG << "RestHttpDevice :: connection::start" << std::endl;
   
   socket_.async_read_some(asio::buffer(buffer_),
-      boost::bind(&connection::handle_read, shared_from_this(),
-        asio::placeholders::error,
-        asio::placeholders::bytes_transferred));
+      std::bind(&connection::handle_read, shared_from_this(),
+          std::placeholders::_1,
+          std::placeholders::_2));
 }
 
 void connection::handle_read(const asio::error_code& e,
@@ -57,22 +56,22 @@
     {
       request_handler_.handle_request(request_, reply_);
       asio::async_write(socket_, reply_.to_buffers(),
-          boost::bind(&connection::handle_write, shared_from_this(),
-            asio::placeholders::error));
+          std::bind(&connection::handle_write, shared_from_this(),
+            std::placeholders::_1));
     }
     else if (!result)
     {
       reply_ = reply::stock_reply(reply::bad_request);
       asio::async_write(socket_, reply_.to_buffers(),
-          boost::bind(&connection::handle_write, shared_from_this(),
-            asio::placeholders::error));
+          std::bind(&connection::handle_write, shared_from_this(),
+            std::placeholders::_1));
     }
     else
     {
       socket_.async_read_some(asio::buffer(buffer_),
-          boost::bind(&connection::handle_read, shared_from_this(),
-            asio::placeholders::error,
-            asio::placeholders::bytes_transferred));
+          std::bind(&connection::handle_read, shared_from_this(),
+            std::placeholders::_1,
+            std::placeholders::_2));
     }
   }
 
diff -uNr 0000-OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/RestHttpDevice/server.cpp asio-OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/RestHttpDevice/server.cpp
--- 0000-OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/RestHttpDevice/server.cpp	2020-01-31 05:03:07.000000000 -0600
+++ asio-OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/RestHttpDevice/server.cpp	2021-09-29 12:38:12.292620494 -0500
@@ -9,7 +9,6 @@
 //
 
 #include "server.hpp"
-#include <boost/bind.hpp>
 
 namespace http {
 namespace server {
@@ -23,7 +22,7 @@
     request_handler_(doc_root)
 {
   // Open the acceptor with the option to reuse the address (i.e. SO_REUSEADDR).
-  asio::ip::tcp::resolver resolver(acceptor_.get_io_service());
+  asio::ip::tcp::resolver resolver(acceptor_.get_executor());
   asio::ip::tcp::resolver::query query(address, port);
   asio::ip::tcp::endpoint endpoint = *resolver.resolve(query);
   acceptor_.open(endpoint.protocol());
@@ -31,8 +30,8 @@
   acceptor_.bind(endpoint);
   acceptor_.listen();
   acceptor_.async_accept(new_connection_->socket(),
-      boost::bind(&server::handle_accept, this,
-        asio::placeholders::error));
+      std::bind(&server::handle_accept, this,
+        std::placeholders::_1));
 }
 
 void server::run()
@@ -56,8 +55,8 @@
     new_connection_.reset(new connection(
           io_service_pool_.get_io_service(), request_handler_));
     acceptor_.async_accept(new_connection_->socket(),
-        boost::bind(&server::handle_accept, this,
-          asio::placeholders::error));
+        std::bind(&server::handle_accept, this,
+          std::placeholders::_1));
   }
   else
   {