diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index 7e300fbe..54978ac8 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -30,11 +30,9 @@ HOW TO UPDATE?
 
 
 -----------------------------------------------------------------------
- VERSION 1.67 (In Progress)
+ VERSION 1.66b (Released 2018-12-01)
 -----------------------------------------------------------------------
 
-Breaking Changes:
-
 Other Changes:
 
 - Fixed a text rendering/clipping bug introduced in 1.66 (on 2018-10-12, commit ede3a3b9) that affect single ImDrawList::AddText()
@@ -44,6 +42,7 @@ Other Changes:
 - Demo: Added ShowAboutWindow() call, previously was only accessible from the demo window.
 - Demo: ShowAboutWindow() now display various Build/Config Information (compiler, os, etc.) that can easily be copied into bug reports.
 - Fixed build issue with osxcross and macOS. (#2218) [@dos1]
+- Examples: Setting up 'io.BackendPlatformName'/'io.BackendRendererName' fields to the current back-end can be displayed in the About window.
 - Examples: SDL: changed the signature of ImGui_ImplSDL2_ProcessEvent() to use a const SDL_Event*. (#2187)
 
 
diff --git a/examples/imgui_impl_win32.h b/examples/imgui_impl_win32.h
index 404bc79e..5f163152 100644
--- a/examples/imgui_impl_win32.h
+++ b/examples/imgui_impl_win32.h
@@ -23,7 +23,7 @@ IMGUI_API float       ImGui_ImplWin32_GetDpiScaleForRect(int x1, int y1, int x2,
 
 // Handler for Win32 messages, update mouse/keyboard data.
 // You may or not need this for your implementation, but it can serve as reference for handling inputs.
-// Intentionally commented out to avoid dragging dependencies on <windows.h> types. You can copy the extern declaration in your code.
+// Intentionally commented out to avoid dragging dependencies on <windows.h> types. You can COPY this line into your .cpp code instead.
 /*
 IMGUI_IMPL_API LRESULT  ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
 */
diff --git a/imgui.cpp b/imgui.cpp
index 7af67c95..63104638 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -1,4 +1,4 @@
-// dear imgui, v1.67 WIP
+// dear imgui, v1.66b
 // (main code and documentation)
 
 // Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp for demo code.
@@ -684,8 +684,8 @@ CODE
      you to animate labels. For example you may want to include varying information in a window title bar,
      but windows are uniquely identified by their ID. Use "###" to pass a label that isn't part of ID:
 
-       Button("Hello###ID";   // Label = "Hello",  ID = hash of (..., "ID")
-       Button("World###ID";   // Label = "World",  ID = hash of (..., "ID")     // Same as above, even though the label looks different
+       Button("Hello###ID");  // Label = "Hello",  ID = hash of (..., "ID")
+       Button("World###ID");  // Label = "World",  ID = hash of (..., "ID")     // Same as above, even though the label looks different
 
        sprintf(buf, "My game (%f FPS)###MyGame", fps);
        Begin(buf);            // Variable title,   ID = hash of "MyGame"
diff --git a/imgui.h b/imgui.h
index 1c6ba04a..9db67ebf 100644
--- a/imgui.h
+++ b/imgui.h
@@ -1,4 +1,4 @@
-// dear imgui, v1.67 WIP
+// dear imgui, v1.66b
 // (headers)
 
 // See imgui.cpp file for documentation.
@@ -45,8 +45,8 @@ Index of this file:
 
 // Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY00 then bounced up to XYY01 when release tagging happens)
-#define IMGUI_VERSION               "1.67 WIP"
-#define IMGUI_VERSION_NUM           16700
+#define IMGUI_VERSION               "1.66b"
+#define IMGUI_VERSION_NUM           16602
 #define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert))
 #define IMGUI_HAS_VIEWPORT          1 // Viewport WIP branch
 
diff --git a/imgui_demo.cpp b/imgui_demo.cpp
index a1b7f4ae..249c9571 100644
--- a/imgui_demo.cpp
+++ b/imgui_demo.cpp
@@ -1,4 +1,4 @@
-// dear imgui, v1.67 WIP
+// dear imgui, v1.66b
 // (demo code)
 
 // Message to the person tempted to delete this file when integrating Dear ImGui into their code base:
diff --git a/imgui_draw.cpp b/imgui_draw.cpp
index 1b29a1d9..091aa5ca 100644
--- a/imgui_draw.cpp
+++ b/imgui_draw.cpp
@@ -1,4 +1,4 @@
-// dear imgui, v1.67 WIP
+// dear imgui, v1.66b
 // (drawing and font code)
 
 /*
@@ -32,7 +32,7 @@ Index of this file:
 
 #include <stdio.h>      // vsnprintf, sscanf, printf
 #if !defined(alloca)
-#if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__)
+#if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__) || defined(__APPLE__)
 #include <alloca.h>     // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
 #elif defined(_WIN32)
 #include <malloc.h>     // alloca
diff --git a/imgui_internal.h b/imgui_internal.h
index ee2f5d6c..6c158f70 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h
@@ -1,4 +1,4 @@
-// dear imgui, v1.67 WIP
+// dear imgui, v1.66b
 // (internal structures/api)
 
 // You may use this file to debug, understand or extend ImGui features but we don't provide any guarantee of forward compatibility!
diff --git a/imgui_widgets.cpp b/imgui_widgets.cpp
index 0a233c9b..531e22a4 100644
--- a/imgui_widgets.cpp
+++ b/imgui_widgets.cpp
@@ -1,4 +1,4 @@
-// dear imgui, v1.67 WIP
+// dear imgui, v1.66b
 // (widgets code)
 
 /*