diff --git a/asio/README b/asio/README
index 10cf4e7..44c333c 100644
--- a/asio/README
+++ b/asio/README
@@ -1,4 +1,4 @@
-asio version 1.8.2
-Released Tuesday, 21 August 2012.
+asio version 1.8.3
+Released Monday, 13 May 2013.
 
 See doc/index.html for API documentation and a tutorial.
diff --git a/asio/asio.manifest b/asio/asio.manifest
index 2e9ec20..4cb9914 100644
--- a/asio/asio.manifest
+++ b/asio/asio.manifest
@@ -3498,7 +3498,9 @@
 /include/asio/detail/task_io_service_fwd.hpp
 /include/asio/detail/task_io_service.hpp
 /include/asio/detail/task_io_service_operation.hpp
+/include/asio/detail/task_io_service_thread_info.hpp
 /include/asio/detail/thread.hpp
+/include/asio/detail/thread_info_base.hpp
 /include/asio/detail/throw_error.hpp
 /include/asio/detail/timer_queue_base.hpp
 /include/asio/detail/timer_queue_fwd.hpp
@@ -3532,6 +3534,7 @@
 /include/asio/detail/win_iocp_socket_send_op.hpp
 /include/asio/detail/win_iocp_socket_service_base.hpp
 /include/asio/detail/win_iocp_socket_service.hpp
+/include/asio/detail/win_iocp_thread_info.hpp
 /include/asio/detail/win_mutex.hpp
 /include/asio/detail/win_object_handle_service.hpp
 /include/asio/detail/winsock_init.hpp
@@ -3549,6 +3552,7 @@
 /include/asio/impl/connect.hpp
 /include/asio/impl/error_code.ipp
 /include/asio/impl/error.ipp
+/include/asio/impl/handler_alloc_hook.ipp
 /include/asio/impl/io_service.hpp
 /include/asio/impl/io_service.ipp
 /include/asio/impl/read_at.hpp
diff --git a/asio/boost_asio.manifest b/asio/boost_asio.manifest
index d63ed08..588b3d7 100644
--- a/asio/boost_asio.manifest
+++ b/asio/boost_asio.manifest
@@ -185,7 +185,9 @@
 /boost/asio/detail/task_io_service_fwd.hpp
 /boost/asio/detail/task_io_service.hpp
 /boost/asio/detail/task_io_service_operation.hpp
+/boost/asio/detail/task_io_service_thread_info.hpp
 /boost/asio/detail/thread.hpp
+/boost/asio/detail/thread_info_base.hpp
 /boost/asio/detail/throw_error.hpp
 /boost/asio/detail/timer_queue_base.hpp
 /boost/asio/detail/timer_queue_fwd.hpp
@@ -219,6 +221,7 @@
 /boost/asio/detail/win_iocp_socket_send_op.hpp
 /boost/asio/detail/win_iocp_socket_service_base.hpp
 /boost/asio/detail/win_iocp_socket_service.hpp
+/boost/asio/detail/win_iocp_thread_info.hpp
 /boost/asio/detail/win_mutex.hpp
 /boost/asio/detail/win_object_handle_service.hpp
 /boost/asio/detail/winsock_init.hpp
@@ -234,6 +237,7 @@
 /boost/asio/impl/
 /boost/asio/impl/connect.hpp
 /boost/asio/impl/error.ipp
+/boost/asio/impl/handler_alloc_hook.ipp
 /boost/asio/impl/io_service.hpp
 /boost/asio/impl/io_service.ipp
 /boost/asio/impl/read_at.hpp
diff --git a/asio/configure.ac b/asio/configure.ac
index f74609e..3a774bc 100644
--- a/asio/configure.ac
+++ b/asio/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT(asio, [1.8.2])
+AC_INIT(asio, [1.8.3])
 AC_CONFIG_SRCDIR(include/asio.hpp)
 AM_MAINTAINER_MODE
 AM_INIT_AUTOMAKE([tar-ustar])
diff --git a/asio/include/asio/version.hpp b/asio/include/asio/version.hpp
index f1227c4..767474c 100644
--- a/asio/include/asio/version.hpp
+++ b/asio/include/asio/version.hpp
@@ -18,6 +18,6 @@
 // ASIO_VERSION % 100 is the sub-minor version
 // ASIO_VERSION / 100 % 1000 is the minor version
 // ASIO_VERSION / 100000 is the major version
-#define ASIO_VERSION 100802 // 1.8.2
+#define ASIO_VERSION 100803 // 1.8.3
 
 #endif // ASIO_VERSION_HPP