Merge branch 'master' into docking

# Conflicts:
#	backends/imgui_impl_sdl2.cpp
#	backends/imgui_impl_sdl3.cpp
#	imgui.cpp
#	imgui_internal.h

Author: ocornut

backends/imgui_impl_opengl3.cpp

@@ -309,6 +309,7 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
     // GLES 2
     bd->GlVersion = 200;
     bd->GlProfileIsES2 = true;
+    IM_UNUSED(gl_version_str);
 #else
     // Desktop or GLES 3
     GLint major = 0;

backends/imgui_impl_sdl2.cpp

@@ -26,6 +26,7 @@
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
 //  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2025-02-10: Using SDL_OpenURL() in platform_io.Platform_OpenInShellFn handler.
 //  2025-01-20: Made ImGui_ImplSDL2_SetGamepadMode(ImGui_ImplSDL2_GamepadMode_Manual) accept an empty array.
 //  2024-10-24: Emscripten: from SDL 2.30.9, SDL_EVENT_MOUSE_WHEEL event doesn't require dividing by 100.0f.
 //  2024-09-09: use SDL_Vulkan_GetDrawableSize() when available. (#7967, #3190)
@@ -534,6 +535,8 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
     platform_io.Platform_SetImeDataFn = ImGui_ImplSDL2_PlatformSetImeData;
 #ifdef __EMSCRIPTEN__
     platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { ImGui_ImplSDL2_EmscriptenOpenURL(url); return true; };
+#else
+    platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { return SDL_OpenURL(url) == 0; };
 #endif
 
     // Update monitor a first time during init

backends/imgui_impl_sdl3.cpp

@@ -24,6 +24,7 @@
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
 //  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2025-02-10: Using SDL_OpenURL() in platform_io.Platform_OpenInShellFn handler.
 //  2025-01-20: Made ImGui_ImplSDL3_SetGamepadMode(ImGui_ImplSDL3_GamepadMode_Manual) accept an empty array.
 //  2024-10-24: Emscripten: SDL_EVENT_MOUSE_WHEEL event doesn't require dividing by 100.0f on Emscripten.
 //  2024-09-11: (Docking) Added support for viewport->ParentViewportId field to support parenting at OS level. (#7973)
@@ -515,6 +516,7 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
     platform_io.Platform_SetClipboardTextFn = ImGui_ImplSDL3_SetClipboardText;
     platform_io.Platform_GetClipboardTextFn = ImGui_ImplSDL3_GetClipboardText;
     platform_io.Platform_SetImeDataFn = ImGui_ImplSDL3_PlatformSetImeData;
+    platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { return SDL_OpenURL(url) == 0; };
 
     // Update monitor a first time during init
     ImGui_ImplSDL3_UpdateMonitors();

docs/CHANGELOG.txt

@@ -42,23 +42,48 @@ HOW TO UPDATE?
 Breaking changes:
 
 - Renamed ImFontConfig::GlyphExtraSpacing.x option to GlyphExtraAdvanceX. (#242)
+- Renamed style.TabMinWidthForCloseButton to style.TabCloseButtonMinWidthUnselected.
 
 Other changes:
 
 - Fixed IsItemDeactivatedAfterEdit() signal being broken for Checkbox(),
   RadioButton(), Selectable(). Regression from 2025/01/13. (#8370)
+- Windows: Fixed an issue where BeginChild() inside a collapsed Begin()
+  wouldn't inherit the SkipItems flag, resulting in missing coarse clipping
+  opportunity for code not checking the BeginChild() return value.
 - Windows, Style: Added style.WindowBorderHoverPadding setting to configure
   inner/outer padding applied to hit-testing of windows borders and detection
   of hovered window.
+- InputText: Allow CTRL+Shift+Z to redo even outside of OSX. (#8389) [@tanksdude]
 - InputTextWithHint(): Fixed buffer-overflow (luckily often with no visible effect)
   when a user callback modified the buffer contents in a way that altered the
   visibility of the preview/hint buffer. (#8368) [@m9710797, @ocornut]
 - Scrollbar: Rework logic that fades-out scrollbar when it becomes too small,
   which amusingly made it disappear when using very big font/frame size.
+- Tables: fixed calling SetNextWindowScroll() on clipped scrolling table
+  to not leak the value into a subsequent window. (#8196)
+- Tables: fixed an issue where Columns Visible/Hidden state wouldn't be correctly
+  overridden when hot-reloading .ini state. (#7934)
+- Tables: tamed some .ini settings optimizations to more accurately allow
+  overwriting/hot-reloading settings in more situations. (#7934)
+- Styles, Tabs: made the Close Button of selected tabs always visible by default,
+  without requiring to hover the tab. (#8387)
+  - Added style.TabCloseButtonMinWidthSelected/TabCloseButtonMinWidthUnselected settings
+    to configure visibility of the Close Button for selected and unselected tabs.
+    (-1: always visible. 0.0f: visible when hovered. >0.0f: visible when hovered if minimum width)
+  - Default for selected tabs: TabCloseButtonMinWidthSelected = -1.0f (always visible)
+  - Default for unselected tabs: TabCloseButtonMinWidthUnselected = 0.0f (visible when hovered)
+- TextLinkOpenURL(): fixed default Win32 io.PlatformOpenInShellFn handler to
+  handle UTF-8 regardless of system regional settings. (#7660) [@achabense]
+- Demo: Combos: demonstrate a very simple way to add a filter to a combo,
+  by showing the filter inside the combo contents. (#718)
+- Backends: SDL2, SDL3:  Using SDL_OpenURL() in platform_io.Platform_OpenInShellFn
+  handler. (#7660) [@achabense]
 - Backends: Metal: Fixed a crash on application resources. (#8367, #7419) [@anszom]
 - Backends: WebGPU: Fix for DAWN API rename WGPUProgrammableStageDescriptor -> WGPUComputeState.
   [@PhantomCloak] (#8369)
 
+
 -----------------------------------------------------------------------
  VERSION 1.91.8 (Released 2025-01-31)
 -----------------------------------------------------------------------

examples/example_win32_directx12/main.cpp

@@ -54,7 +54,7 @@ struct ExampleDescriptorHeapAllocator
         HeapHandleIncrement = device->GetDescriptorHandleIncrementSize(HeapType);
         FreeIndices.reserve((int)desc.NumDescriptors);
         for (int n = desc.NumDescriptors; n > 0; n--)
-            FreeIndices.push_back(n);
+            FreeIndices.push_back(n - 1);
     }
     void Destroy()
     {