diff --git a/.gitignore b/.gitignore
index 61a66690..83d1780c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -121,6 +121,7 @@ doc/tutorial/14_lua
 doc/tutorial/15_gui
 doc/tutorial/16_movie
 doc/tutorial/16_movie.gif
+doc/tutorial/17_net
 tools/make-font
 # Our data
 doc/doxygen.cfg
diff --git a/build/autotools/m4/lol-conf.m4 b/build/autotools/m4/lol-conf.m4
index e03f2b6e..d8d49922 100644
--- a/build/autotools/m4/lol-conf.m4
+++ b/build/autotools/m4/lol-conf.m4
@@ -68,7 +68,7 @@ dnl  Activate some header-only libraries
 dnl
 
 LOL_CFLAGS="$LOL_CFLAGS -I\$(lol_srcdir)/src/3rdparty/cpp-httplib"
-LOL_CFLAGS="$LOL_CFLAGS -I\$(lol_srcdir)/src/3rdparty/imgui"
+LOL_CFLAGS="$LOL_CFLAGS -I\$(lol_srcdir)/src/3rdparty/imgui -DIMGUI_USE_WCHAR32"
 
 
 dnl  Use OpenSSL?
diff --git a/build/msbuild/lol.vars.props b/build/msbuild/lol.vars.props
index ee4bc628..1f02b517 100644
--- a/build/msbuild/lol.vars.props
+++ b/build/msbuild/lol.vars.props
@@ -11,6 +11,7 @@
     <!-- imgui -->
     <ImguiDir>$(LolDir)\src\3rdparty\imgui</ImguiDir>
     <ImguiIncludes>$(ImguiDir)</ImguiIncludes>
+    <Win32Defines>IMGUI_USE_WCHAR32;$(Win32Defines)</Win32Defines>
 
     <!-- OpenSSL -->
     <OpenSslDir>$(ExternalDir)\openssl-1.1.1g</OpenSslDir>
diff --git a/src/3rdparty/bullet3 b/src/3rdparty/bullet3
index ce28bd53..036e51c6 160000
--- a/src/3rdparty/bullet3
+++ b/src/3rdparty/bullet3
@@ -1 +1 @@
-Subproject commit ce28bd5369586cfce95885f7f99e421aa2384cd7
+Subproject commit 036e51c63725a805f11208b15492570ca608306e
diff --git a/src/3rdparty/cpp-httplib b/src/3rdparty/cpp-httplib
index b2516685..6b224092 160000
--- a/src/3rdparty/cpp-httplib
+++ b/src/3rdparty/cpp-httplib
@@ -1 +1 @@
-Subproject commit b251668522dd459d2c6a75c10390a11b640be708
+Subproject commit 6b22409217e58b81271c1d50f88265481d042fa8
diff --git a/src/3rdparty/imgui b/src/3rdparty/imgui
index 4ebf5257..6b242e11 160000
--- a/src/3rdparty/imgui
+++ b/src/3rdparty/imgui
@@ -1 +1 @@
-Subproject commit 4ebf525785e22f3d96433cb4d070e890ef819190
+Subproject commit 6b242e119ee92d9dd88fdcdb057288cd06f933ef
diff --git a/src/3rdparty/lua b/src/3rdparty/lua
index 1653f339..463f4cad 160000
--- a/src/3rdparty/lua
+++ b/src/3rdparty/lua
@@ -1 +1 @@
-Subproject commit 1653f339db1c7cc63b20782732a4788f077c94f0
+Subproject commit 463f4cad03a78989bda941d01d8a6c3f86ee5bc4