diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index ec709cf1e..691c7ebb8 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -42,6 +42,11 @@ HOW TO UPDATE?
 
 Breaking changes:
 
+- imgui_freetype: commented out ImGuiFreeType::BuildFontAtlas() obsoleted in 1.81.
+  Prefer using #define IMGUI_ENABLE_FREETYPE or see commented code for manual calls.
+- Internals, Columns: commented out legacy ImGuiColumnsFlags_XXX symbols redirecting
+  to ImGuiOldColumnsFlags_XXX, obsoleted from imgui_internal.h in 1.80.
+
 Other changes:
 
 - Windows: BeginChild(): Fixed auto-resizing erroneously limiting size to host viewport
diff --git a/imgui.cpp b/imgui.cpp
index 09f154b69..d04ebeaa0 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -424,6 +424,8 @@ CODE
  When you are not sure about an old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all imgui files.
  You can read releases logs https://github.com/ocornut/imgui/releases for more details.
 
+ - 2023/11/05 (1.90.1) - imgui_freetype: commented out ImGuiFreeType::BuildFontAtlas() obsoleted in 1.81. prefer using #define IMGUI_ENABLE_FREETYPE or see commented code for manual calls.
+ - 2023/11/05 (1.90.1) - internals,columns: commented out legacy ImGuiColumnsFlags_XXX symbols redirecting to ImGuiOldColumnsFlags_XXX, obsoleted from imgui_internal.h in 1.80.
  - 2023/11/09 (1.90.0) - removed IM_OFFSETOF() macro in favor of using offsetof() available in C++11. Kept redirection define (will obsolete).
  - 2023/11/07 (1.90.0) - removed BeginChildFrame()/EndChildFrame() in favor of using BeginChild() with the ImGuiChildFlags_FrameStyle flag. kept inline redirection function (will obsolete).
                          those functions were merely PushStyle/PopStyle helpers, the removal isn't so much motivated by needing to add the feature in BeginChild(), but by the necessity to avoid BeginChildFrame() signature mismatching BeginChild() signature and features.
diff --git a/imgui_internal.h b/imgui_internal.h
index bb80eeabf..6ed1c1009 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h
@@ -1600,7 +1600,7 @@ struct IMGUI_API ImGuiTypingSelectState
 // [SECTION] Columns support
 //-----------------------------------------------------------------------------
 
-// Flags for internal's BeginColumns(). Prefix using BeginTable() nowadays!
+// Flags for internal's BeginColumns(). This is an obsolete API. Prefer using BeginTable() nowadays!
 enum ImGuiOldColumnFlags_
 {
     ImGuiOldColumnFlags_None                    = 0,
@@ -1608,16 +1608,16 @@ enum ImGuiOldColumnFlags_
     ImGuiOldColumnFlags_NoResize                = 1 << 1,   // Disable resizing columns when clicking on the dividers
     ImGuiOldColumnFlags_NoPreserveWidths        = 1 << 2,   // Disable column width preservation when adjusting columns
     ImGuiOldColumnFlags_NoForceWithinWindow     = 1 << 3,   // Disable forcing columns to fit within window
-    ImGuiOldColumnFlags_GrowParentContentsSize  = 1 << 4,   // (WIP) Restore pre-1.51 behavior of extending the parent window contents size but _without affecting the columns width at all_. Will eventually remove.
+    ImGuiOldColumnFlags_GrowParentContentsSize  = 1 << 4,   // Restore pre-1.51 behavior of extending the parent window contents size but _without affecting the columns width at all_. Will eventually remove.
 
     // Obsolete names (will be removed)
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    ImGuiColumnsFlags_None                      = ImGuiOldColumnFlags_None,
-    ImGuiColumnsFlags_NoBorder                  = ImGuiOldColumnFlags_NoBorder,
-    ImGuiColumnsFlags_NoResize                  = ImGuiOldColumnFlags_NoResize,
-    ImGuiColumnsFlags_NoPreserveWidths          = ImGuiOldColumnFlags_NoPreserveWidths,
-    ImGuiColumnsFlags_NoForceWithinWindow       = ImGuiOldColumnFlags_NoForceWithinWindow,
-    ImGuiColumnsFlags_GrowParentContentsSize    = ImGuiOldColumnFlags_GrowParentContentsSize,
+    //ImGuiColumnsFlags_None                    = ImGuiOldColumnFlags_None,
+    //ImGuiColumnsFlags_NoBorder                = ImGuiOldColumnFlags_NoBorder,
+    //ImGuiColumnsFlags_NoResize                = ImGuiOldColumnFlags_NoResize,
+    //ImGuiColumnsFlags_NoPreserveWidths        = ImGuiOldColumnFlags_NoPreserveWidths,
+    //ImGuiColumnsFlags_NoForceWithinWindow     = ImGuiOldColumnFlags_NoForceWithinWindow,
+    //ImGuiColumnsFlags_GrowParentContentsSize  = ImGuiOldColumnFlags_GrowParentContentsSize,
 #endif
 };
 
diff --git a/misc/freetype/imgui_freetype.h b/misc/freetype/imgui_freetype.h
index cc58ba6ab..b4e1d4893 100644
--- a/misc/freetype/imgui_freetype.h
+++ b/misc/freetype/imgui_freetype.h
@@ -43,9 +43,8 @@ namespace ImGuiFreeType
     IMGUI_API void                      SetAllocatorFunctions(void* (*alloc_func)(size_t sz, void* user_data), void (*free_func)(void* ptr, void* user_data), void* user_data = nullptr);
 
     // Obsolete names (will be removed soon)
-    // Prefer using '#define IMGUI_ENABLE_FREETYPE'
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    static inline bool BuildFontAtlas(ImFontAtlas* atlas, unsigned int flags = 0) { atlas->FontBuilderIO = GetBuilderForFreeType(); atlas->FontBuilderFlags = flags; return atlas->Build(); }
+    //static inline bool BuildFontAtlas(ImFontAtlas* atlas, unsigned int flags = 0) { atlas->FontBuilderIO = GetBuilderForFreeType(); atlas->FontBuilderFlags = flags; return atlas->Build(); } // Prefer using '#define IMGUI_ENABLE_FREETYPE'
 #endif
 }