Removed DrawCallback_SetSamplerCustom feature for now. Too unreliable to get working everywhere. (#9378)
diff --git a/backends/imgui_impl_allegro5.cpp b/backends/imgui_impl_allegro5.cpp
index c5d2831..57865f9 100644
--- a/backends/imgui_impl_allegro5.cpp
+++ b/backends/imgui_impl_allegro5.cpp
@@ -9,7 +9,7 @@
 //  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 // Missing features or Issues:
 //  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
-//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest, DrawCallback_SetSamplerCustom callbacks: Allegro5 cannot enable/disable LINEAR bitmap flags after creation.
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks: Allegro5 cannot enable/disable LINEAR bitmap flags after creation.
 //  [ ] Platform: Missing gamepad support.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
diff --git a/backends/imgui_impl_allegro5.h b/backends/imgui_impl_allegro5.h
index 3fe531a..84ebf43 100644
--- a/backends/imgui_impl_allegro5.h
+++ b/backends/imgui_impl_allegro5.h
@@ -9,7 +9,7 @@
 //  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 // Missing features or Issues:
 //  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
-//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest, DrawCallback_SetSamplerCustom callbacks: Allegro5 cannot enable/disable LINEAR bitmap flags after creation.
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks: Allegro5 cannot enable/disable LINEAR bitmap flags after creation.
 //  [ ] Platform: Missing gamepad support.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
diff --git a/backends/imgui_impl_dx10.cpp b/backends/imgui_impl_dx10.cpp
index d412a9e..e6cc595 100644
--- a/backends/imgui_impl_dx10.cpp
+++ b/backends/imgui_impl_dx10.cpp
@@ -158,7 +158,6 @@
 static void ImGui_ImplDX10_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)       {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
 static void ImGui_ImplDX10_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)       { ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData(); bd->pd3dDevice->PSSetSamplers(0, 1, &bd->pTexSamplerLinear); }
 static void ImGui_ImplDX10_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)      { ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData(); bd->pd3dDevice->PSSetSamplers(0, 1, &bd->pTexSamplerNearest); }
-static void ImGui_ImplDX10_DrawCallback_SetSamplerCustom(const ImDrawList*, const ImDrawCmd* cmd)   { ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData(); ID3D10SamplerState* sampler = (ID3D10SamplerState*)cmd->UserCallbackData; bd->pd3dDevice->PSSetSamplers(0, 1, &sampler); }
 
 // Render function
 void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
@@ -622,7 +621,6 @@
     platform_io.DrawCallback_ResetRenderState = ImGui_ImplDX10_DrawCallback_ResetRenderState;
     platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplDX10_DrawCallback_SetSamplerLinear;
     platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplDX10_DrawCallback_SetSamplerNearest;
-    platform_io.DrawCallback_SetSamplerCustom = ImGui_ImplDX10_DrawCallback_SetSamplerCustom;
 
     // Get factory from device
     IDXGIDevice* pDXGIDevice = nullptr;
diff --git a/backends/imgui_impl_dx11.cpp b/backends/imgui_impl_dx11.cpp
index 29f4914..b365f39 100644
--- a/backends/imgui_impl_dx11.cpp
+++ b/backends/imgui_impl_dx11.cpp
@@ -17,7 +17,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2026-XX-XX: DirectX11: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest, DrawCallback_SetSamplerCustom.
+//  2026-XX-XX: DirectX11: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest.
 //  2026-01-19: DirectX11: Added 'SamplerNearest' in ImGui_ImplDX11_RenderState. Renamed 'SamplerDefault' to 'SamplerLinear'.
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: DirectX11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
@@ -165,7 +165,6 @@
 static void ImGui_ImplDX11_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)       {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
 static void ImGui_ImplDX11_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)       { ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData(); bd->RenderState->DeviceContext->PSSetSamplers(0, 1, &bd->pTexSamplerLinear); }
 static void ImGui_ImplDX11_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)      { ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData(); bd->RenderState->DeviceContext->PSSetSamplers(0, 1, &bd->pTexSamplerNearest); }
-static void ImGui_ImplDX11_DrawCallback_SetSamplerCustom(const ImDrawList*, const ImDrawCmd* cmd)   { ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData(); ID3D11SamplerState* sampler = (ID3D11SamplerState*)cmd->UserCallbackData; bd->RenderState->DeviceContext->PSSetSamplers(0, 1, &sampler); }
 
 // Render function
 void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
@@ -639,7 +638,6 @@
     platform_io.DrawCallback_ResetRenderState = ImGui_ImplDX11_DrawCallback_ResetRenderState;
     platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplDX11_DrawCallback_SetSamplerLinear;
     platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplDX11_DrawCallback_SetSamplerNearest;
-    platform_io.DrawCallback_SetSamplerCustom = ImGui_ImplDX11_DrawCallback_SetSamplerCustom;
 
     // Get factory from device
     IDXGIDevice* pDXGIDevice = nullptr;
diff --git a/backends/imgui_impl_metal.h b/backends/imgui_impl_metal.h
index 2baa4de..879fadc 100644
--- a/backends/imgui_impl_metal.h
+++ b/backends/imgui_impl_metal.h
@@ -6,7 +6,7 @@
 //  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 // Missing features or Issues:
-//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest, DrawCallback_SetSamplerCustom callbacks.
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
diff --git a/backends/imgui_impl_metal.mm b/backends/imgui_impl_metal.mm
index ddde093..1e52975 100644
--- a/backends/imgui_impl_metal.mm
+++ b/backends/imgui_impl_metal.mm
@@ -6,7 +6,7 @@
 //  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 // Missing features or Issues:
-//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest, DrawCallback_SetSamplerCustom callbacks.
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
diff --git a/backends/imgui_impl_opengl3.cpp b/backends/imgui_impl_opengl3.cpp
index 228294c..77de814 100644
--- a/backends/imgui_impl_opengl3.cpp
+++ b/backends/imgui_impl_opengl3.cpp
@@ -23,7 +23,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2026-XX-XX: OpenGL: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest, DrawCallback_SetSamplerCustom.
+//  2026-XX-XX: OpenGL: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest.
 //  2026-03-12: OpenGL: Fixed invalid assert in ImGui_ImplOpenGL3_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295)
 //  2025-12-11: OpenGL: Fixed embedded loader multiple init/shutdown cycles broken on some platforms. (#8792, #9112)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
@@ -408,7 +408,6 @@
 static void ImGui_ImplOpenGL3_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)    {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
 static void ImGui_ImplOpenGL3_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)    { ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData(); if (bd->HasBindSampler) { glBindSampler(0, bd->TexSamplers[0]); } else { bd->UseTexParameterToSetSampler = true; bd->NextSampler = GL_LINEAR; } }
 static void ImGui_ImplOpenGL3_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)   { ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData(); if (bd->HasBindSampler) { glBindSampler(0, bd->TexSamplers[1]); } else { bd->UseTexParameterToSetSampler = true; bd->NextSampler = GL_NEAREST; } }
-static void ImGui_ImplOpenGL3_DrawCallback_SetSamplerCustom(const ImDrawList*, const ImDrawCmd* cmd){ ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData(); if (bd->HasBindSampler) { glBindSampler(0, (GLuint)(intptr_t)cmd->UserCallbackData); } }
 
 // OpenGL3 Render function.
 // Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly.
@@ -1030,7 +1029,6 @@
     platform_io.DrawCallback_ResetRenderState = ImGui_ImplOpenGL3_DrawCallback_ResetRenderState;
     platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplOpenGL3_DrawCallback_SetSamplerLinear;
     platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplOpenGL3_DrawCallback_SetSamplerNearest;
-    platform_io.DrawCallback_SetSamplerCustom = ImGui_ImplOpenGL3_DrawCallback_SetSamplerCustom;
 
     // Store GLSL version string so we can refer to it later in case we recreate shaders.
     // Note: GLSL version is NOT the same as GL version. Leave this to nullptr if unsure.
diff --git a/backends/imgui_impl_sdlgpu3.cpp b/backends/imgui_impl_sdlgpu3.cpp
index 41933a1..f8a109a 100644
--- a/backends/imgui_impl_sdlgpu3.cpp
+++ b/backends/imgui_impl_sdlgpu3.cpp
@@ -22,7 +22,7 @@
 //   Calling the function is MANDATORY, otherwise the ImGui will not upload neither the vertex nor the index buffer for the GPU. See imgui_impl_sdlgpu3.cpp for more info.
 
 // CHANGELOG
-//  2026-XX-XX: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest, DrawCallback_SetSamplerCustom.
+//  2026-XX-XX: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest.
 //  2026-03-19: Fixed issue in ImGui_ImplSDLGPU3_DestroyTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295, #9310)
 //  2026-02-25: Removed unnecessary call to SDL_WaitForGPUIdle when releasing vertex/index buffers. (#9262)
 //  2025-11-26: macOS version can use MSL shaders in order to support macOS 10.14+ (vs Metallib shaders requiring macOS 14+). Requires calling SDL_CreateGPUDevice() with SDL_GPU_SHADERFORMAT_MSL.
@@ -225,7 +225,6 @@
 static void ImGui_ImplSDLGPU3_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)    {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
 static void ImGui_ImplSDLGPU3_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)    { ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData(); bd->CurrentSampler = bd->TexSamplerLinear; }
 static void ImGui_ImplSDLGPU3_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)   { ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData(); bd->CurrentSampler = bd->TexSamplerNearest; }
-static void ImGui_ImplSDLGPU3_DrawCallback_SetSamplerCustom(const ImDrawList*, const ImDrawCmd* cmd){ ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData(); bd->CurrentSampler = (SDL_GPUSampler*)cmd->UserCallbackData; }
 
 void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffer* command_buffer, SDL_GPURenderPass* render_pass, SDL_GPUGraphicsPipeline* pipeline)
 {
@@ -670,7 +669,6 @@
     platform_io.DrawCallback_ResetRenderState = ImGui_ImplSDLGPU3_DrawCallback_ResetRenderState;
     platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplSDLGPU3_DrawCallback_SetSamplerLinear;
     platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplSDLGPU3_DrawCallback_SetSamplerNearest;
-    platform_io.DrawCallback_SetSamplerCustom = ImGui_ImplSDLGPU3_DrawCallback_SetSamplerCustom;
 
     IM_ASSERT(info->Device != nullptr);
     IM_ASSERT(info->ColorTargetFormat != SDL_GPU_TEXTUREFORMAT_INVALID);
diff --git a/backends/imgui_impl_sdlrenderer2.cpp b/backends/imgui_impl_sdlrenderer2.cpp
index 2f6fcc6..5372d1c 100644
--- a/backends/imgui_impl_sdlrenderer2.cpp
+++ b/backends/imgui_impl_sdlrenderer2.cpp
@@ -15,7 +15,7 @@
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 // Missing features or Issues:
-//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest, DrawCallback_SetSamplerCustom callbacks: SDLRenderer2 does not support changing SDL_SCALE_MODE while rendering.
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks: SDLRenderer2 does not support changing SDL_SCALE_MODE while rendering.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
diff --git a/backends/imgui_impl_sdlrenderer2.h b/backends/imgui_impl_sdlrenderer2.h
index 7b2edd4..f33bc16 100644
--- a/backends/imgui_impl_sdlrenderer2.h
+++ b/backends/imgui_impl_sdlrenderer2.h
@@ -15,7 +15,7 @@
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 // Missing features or Issues:
-//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest, DrawCallback_SetSamplerCustom callbacks: SDLRenderer2 does not support changing SDL_SCALE_MODE while rendering.
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks: SDLRenderer2 does not support changing SDL_SCALE_MODE while rendering.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
diff --git a/backends/imgui_impl_vulkan.cpp b/backends/imgui_impl_vulkan.cpp
index fb3049e..bb4f2cb 100644
--- a/backends/imgui_impl_vulkan.cpp
+++ b/backends/imgui_impl_vulkan.cpp
@@ -27,7 +27,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2026-XX-XX: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest, DrawCallback_SetSamplerCustom.
+//  2026-XX-XX: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest.
 //  2026-04-22: *BREAKING CHANGE* redesigned to use separate ImageView + Sampler instead of Combined Image Sampler. This change allows us to facilitate changing samplers, in line with other backends.
 //              - When registering custom textures: changed ImGui_ImplVulkan_AddTexture() signature to remove Sampler.
 //                - Before: ImGui_ImplVulkan_AddTexture(VkSampler, VkImageView, VkImageLayout)
@@ -539,7 +539,6 @@
 static void ImGui_ImplVulkan_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)     {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
 static void ImGui_ImplVulkan_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)     { ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); vkCmdBindDescriptorSets(bd->RenderState->CommandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 1, 1, &bd->SamplerLinearDS, 0, nullptr); }
 static void ImGui_ImplVulkan_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)    { ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); vkCmdBindDescriptorSets(bd->RenderState->CommandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 1, 1, &bd->SamplerNearestDS, 0, nullptr); }
-static void ImGui_ImplVulkan_DrawCallback_SetSamplerCustom(const ImDrawList*, const ImDrawCmd* cmd) { ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); IM_ASSERT(cmd->UserCallbackDataSize == sizeof(VkDescriptorSet)); VkDescriptorSet* ds = (VkDescriptorSet*)cmd->UserCallbackData;  vkCmdBindDescriptorSets(bd->RenderState->CommandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 1, 1, ds, 0, nullptr); }
 
 // Render function
 void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer command_buffer, VkPipeline pipeline)
@@ -1367,7 +1366,6 @@
     platform_io.DrawCallback_ResetRenderState = ImGui_ImplVulkan_DrawCallback_ResetRenderState;
     platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplVulkan_DrawCallback_SetSamplerLinear;
     platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplVulkan_DrawCallback_SetSamplerNearest;
-    platform_io.DrawCallback_SetSamplerCustom = ImGui_ImplVulkan_DrawCallback_SetSamplerCustom;
 
     // Sanity checks
     IM_ASSERT(info->Instance != VK_NULL_HANDLE);
diff --git a/backends/imgui_impl_wgpu.cpp b/backends/imgui_impl_wgpu.cpp
index fe01dcf..fb9b05f 100644
--- a/backends/imgui_impl_wgpu.cpp
+++ b/backends/imgui_impl_wgpu.cpp
@@ -7,8 +7,6 @@
 //  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 //  [X] Renderer: Texture updates support for dynamic font system (ImGuiBackendFlags_RendererHasTextures).
-// Missing features or Issues:
-//  [ ] Renderer: Missing support for DrawCallback_SetSamplerCustom.
 
 // Read imgui_impl_wgpu.h about how to use the IMGUI_IMPL_WEBGPU_BACKEND_WGPU or IMGUI_IMPL_WEBGPU_BACKEND_DAWN flags.
 
diff --git a/backends/imgui_impl_wgpu.h b/backends/imgui_impl_wgpu.h
index e1bbf9d..c06c25f 100644
--- a/backends/imgui_impl_wgpu.h
+++ b/backends/imgui_impl_wgpu.h
@@ -19,8 +19,6 @@
 //  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 //  [X] Renderer: Texture updates support for dynamic font system (ImGuiBackendFlags_RendererHasTextures).
-// Missing features or Issues:
-//  [ ] Renderer: Missing support for DrawCallback_SetSamplerCustom.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index 658d895..7b1e89c 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -67,7 +67,6 @@
       platform_io.DrawCallback_ResetRenderState;    // Request to reset the graphics/render state.
       platform_io.DrawCallback_SetSamplerLinear;    // Request to set current texture sampling to Linear
       platform_io.DrawCallback_SetSamplerNearest;   // Request to set current texture sampling to Nearest/Point
-      platform_io.DrawCallback_SetSamplerCustom;    // Request to set current texture sampling using Backend Specific data.
     Note that some backends might not support all callbacks.
     (#9378, #9371, #3590, #8926, #2973, #7485, #7468, #6969, #5118, #7616, #9173, #8322, #7230,
     #5999, #6452, #5156, #7342, #7592, #7511)
@@ -133,19 +132,19 @@
   - Added missing Test Engine hooks for PlotXXX(), VSliderXXX(), TableHeader().
 - Backends:
   - Added support for new standardized draw callbacks in most backends: (#9378)
-    - Allegro5:     Reset     n/a               n/a                n/a
-    - DX9:          Reset     SetSamplerLinear  SetSamplerNearest  n/a
-    - DX10:         Reset     SetSamplerLinear  SetSamplerNearest  SetSamplerCustom
-    - DX11:         Reset     SetSamplerLinear  SetSamplerNearest  SetSamplerCustom
-    - DX12:         Reset     SetSamplerLinear  SetSamplerNearest  n/a
-    - Metal:        Reset     *missing*         *missing*          *missing*
-    - OpenGL2:      Reset     SetSamplerLinear  SetSamplerNearest  *missing*
-    - OpenGL3+:     Reset     SetSamplerLinear  SetSamplerNearest  SetSamplerCustom
-    - SDLGPU3:      Reset     SetSamplerLinear  SetSamplerNearest  SetSamplerCustom
-    - SDLRenderer2: Reset     n/a               n/a                n/a
-    - SDLRenderer3: Reset     SetSamplerLinear  SetSamplerNearest  n/a
-    - Vulkan:       Reset     SetSamplerLinear  SetSamplerNearest  SetSamplerCustom
-    - WebGPU:       Reset     SetSamplerLinear  SetSamplerNearest  *missing*
+    - Allegro5:     Reset     n/a               n/a
+    - DX9:          Reset     SetSamplerLinear  SetSamplerNearest
+    - DX10:         Reset     SetSamplerLinear  SetSamplerNearest
+    - DX11:         Reset     SetSamplerLinear  SetSamplerNearest
+    - DX12:         Reset     SetSamplerLinear  SetSamplerNearest
+    - Metal:        Reset     *missing*         *missing*
+    - OpenGL2:      Reset     SetSamplerLinear  SetSamplerNearest
+    - OpenGL3+:     Reset     SetSamplerLinear  SetSamplerNearest
+    - SDLGPU3:      Reset     SetSamplerLinear  SetSamplerNearest
+    - SDLRenderer2: Reset     n/a               n/a
+    - SDLRenderer3: Reset     SetSamplerLinear  SetSamplerNearest
+    - Vulkan:       Reset     SetSamplerLinear  SetSamplerNearest
+    - WebGPU:       Reset     SetSamplerLinear  SetSamplerNearest
     (Vulkan backend by @yaz0r, others by @ocornut)
   - GLFW: added a Win32-specific implementation of `ImGui_ImplGlfw_GetContentScaleXXXX`
     functions for legacy GLFW 3.2. (#9003)
diff --git a/imgui.cpp b/imgui.cpp
index 5cf11f5..1635e18 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -15817,7 +15817,7 @@
 {
     Renderer_TextureMaxWidth = Renderer_TextureMaxHeight = 0;
     Renderer_RenderState = NULL;
-    DrawCallback_ResetRenderState = DrawCallback_SetSamplerLinear = DrawCallback_SetSamplerNearest = DrawCallback_SetSamplerCustom = NULL;
+    DrawCallback_ResetRenderState = DrawCallback_SetSamplerLinear = DrawCallback_SetSamplerNearest = NULL;
 }
 
 ImGuiViewport* ImGui::GetMainViewport()
diff --git a/imgui.h b/imgui.h
index 1e6d79e..f867f34 100644
--- a/imgui.h
+++ b/imgui.h
@@ -4021,7 +4021,7 @@
     ImDrawCallback  DrawCallback_ResetRenderState;      // Request to reset the graphics/render state.
     ImDrawCallback  DrawCallback_SetSamplerLinear;      // Request to set current texture sampling to Linear
     ImDrawCallback  DrawCallback_SetSamplerNearest;     // Request to set current texture sampling to Nearest/Point
-    ImDrawCallback  DrawCallback_SetSamplerCustom;      // Request to set current texture sampling using Backend Specific data.
+    //ImDrawCallback  DrawCallback_SetSamplerCustom;    // Request to set current texture sampling using Backend Specific data.
 
     //------------------------------------------------------------------
     // Output