diff --git a/ChangeLog b/ChangeLog
index e1820764..0fc45d33 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+ENet 1.3.18 (April 14, 2024):
+
+* Packet sending performance improvements
+* MTU negotiation fixes
+* Checksum alignment fix
+* No more dynamic initialization of checksum table
+* ENET_SOCKOPT_TTL
+* Other miscellaneous small improvements
+
 ENet 1.3.17 (November 15, 2020):
 
 * fixes for sender getting too far ahead of receiver that can cause instability with reliable packets
diff --git a/Doxyfile b/Doxyfile
index 6b4d06fb..b72cb505 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = "ENet"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = v1.3.17
+PROJECT_NUMBER         = v1.3.18
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/LICENSE b/LICENSE
index 6906f8eb..ec14b3f0 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2002-2020 Lee Salzman
+Copyright (c) 2002-2024 Lee Salzman
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
diff --git a/Makefile.am b/Makefile.am
index d029ed1f..ddd69cfb 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -16,7 +16,7 @@ enetinclude_HEADERS = \
 lib_LTLIBRARIES = libenet.la
 libenet_la_SOURCES = callbacks.c compress.c host.c list.c packet.c peer.c protocol.c unix.c win32.c
 # see info '(libtool) Updating version info' before making a release
-libenet_la_LDFLAGS = $(AM_LDFLAGS) -version-info 7:5:0
+libenet_la_LDFLAGS = $(AM_LDFLAGS) -version-info 7:6:0
 AM_CPPFLAGS = -I$(top_srcdir)/include
 
 ACLOCAL_AMFLAGS = -Im4
diff --git a/configure.ac b/configure.ac
index e0c745d6..552e7df3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([libenet], [1.3.17])
+AC_INIT([libenet], [1.3.18])
 AC_CONFIG_SRCDIR([include/enet/enet.h])
 AM_INIT_AUTOMAKE([foreign])
 
diff --git a/docs/license.dox b/docs/license.dox
index 9991a7f9..e7b2e850 100644
--- a/docs/license.dox
+++ b/docs/license.dox
@@ -1,7 +1,7 @@
 /**
  @page License License
  
-Copyright (c) 2002-2020 Lee Salzman
+Copyright (c) 2002-2024 Lee Salzman
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/docs/mainpage.dox b/docs/mainpage.dox
index eb6c8b85..5d2a13a5 100644
--- a/docs/mainpage.dox
+++ b/docs/mainpage.dox
@@ -36,7 +36,7 @@ portable, and easily embeddable.
 You can retrieve the source to ENet by downloading it in either .tar.gz form
 or accessing the github distribution directly.
 
-The most recent stable release (1.3.17) can be downloaded <a class="el" href="download/enet-1.3.17.tar.gz">here</a>.
+The most recent stable release (1.3.18) can be downloaded <a class="el" href="download/enet-1.3.18.tar.gz">here</a>.
 The last release that is protocol compatible with the 1.2 series or earlier (1.2.5) can be downloaded <a class="el" href="download/enet-1.2.5.tar.gz">here</a>. 
 
 You can find the most recent ENet source at <a class="el" href="https://github.com/lsalzman/enet">the github repository</a>.
diff --git a/include/enet/enet.h b/include/enet/enet.h
index 4a207041..30010187 100644
--- a/include/enet/enet.h
+++ b/include/enet/enet.h
@@ -25,7 +25,7 @@ extern "C"
 
 #define ENET_VERSION_MAJOR 1
 #define ENET_VERSION_MINOR 3
-#define ENET_VERSION_PATCH 17
+#define ENET_VERSION_PATCH 18
 #define ENET_VERSION_CREATE(major, minor, patch) (((major)<<16) | ((minor)<<8) | (patch))
 #define ENET_VERSION_GET_MAJOR(version) (((version)>>16)&0xFF)
 #define ENET_VERSION_GET_MINOR(version) (((version)>>8)&0xFF)
diff --git a/win32.c b/win32.c
index f67e16b7..f395c09b 100644
--- a/win32.c
+++ b/win32.c
@@ -8,7 +8,7 @@
 #include "enet/enet.h"
 #include <windows.h>
 #include <mmsystem.h>
-#include <ws2ipdef.h>
+#include <ws2tcpip.h>
 
 static enet_uint32 timeBase = 0;