RenderTextEllipsis() added breaking comments.

docs/CHANGELOG.txt

@@ -51,7 +51,9 @@ Breaking changes:
   in 1.89.6 (June 2023).
    - ForceDisplayRangeByIndices()          --> IncludeItemsByIndex()
 - Backends: SDL3: Fixed casing typo in function name: (#8509, #8163, #7998, #7988) [@puugz]
-  - Imgui_ImplSDLGPU3_PrepareDrawData() -> ImGui_ImplSDLGPU3_PrepareDrawData()
+   - Imgui_ImplSDLGPU3_PrepareDrawData() -> ImGui_ImplSDLGPU3_PrepareDrawData()
+- Internals: RenderTextEllipsis() function removed the 'float clip_max_x' parameter directly
+  preceding 'float ellipsis_max_x'. Values were identical for a vast majority of users. (#8387)
 
 Other changes:
 

imgui.cpp

@@ -435,6 +435,7 @@ CODE
  - 2025/05/15 (1.92.0) - Commented out PushAllowKeyboardFocus()/PopAllowKeyboardFocus() which was obsoleted in 1.89.4. Use PushItemFlag(ImGuiItemFlags_NoTabStop, !tab_stop)/PopItemFlag() instead. (#3092)
  - 2025/05/15 (1.92.0) - Commented out ImGuiListClipper::ForceDisplayRangeByIndices() which was obsoleted in 1.89.6. Use ImGuiListClipper::IncludeItemsByIndex() instead.
  - 2025/03/05 (1.91.9) - BeginMenu(): Internals: reworked mangling of menu windows to use "###Menu_00" etc. instead of "##Menu_00", allowing them to also store the menu name before it. This shouldn't affect code unless directly accessing menu window from their mangled name.
+ - 2025/04/16 (1.91.9) - Internals: RenderTextEllipsis() function removed the 'float clip_max_x' parameter directly preceding 'float ellipsis_max_x'. Values were identical for a vast majority of users. (#8387)
  - 2025/02/27 (1.91.9) - Image(): removed 'tint_col' and 'border_col' parameter from Image() function. Added ImageWithBg() replacement. (#8131, #8238)
                             - old: void Image      (ImTextureID tex_id, ImVec2 image_size, ImVec2 uv0 = (0,0), ImVec2 uv1 = (1,1), ImVec4 tint_col = (1,1,1,1), ImVec4 border_col = (0,0,0,0));
                             - new: void Image      (ImTextureID tex_id, ImVec2 image_size, ImVec2 uv0 = (0,0), ImVec2 uv1 = (1,1));
@@ -3696,6 +3697,7 @@ void ImGui::RenderTextClipped(const ImVec2& pos_min, const ImVec2& pos_max, cons
 // Another overly complex function until we reorganize everything into a nice all-in-one helper.
 // This is made more complex because we have dissociated the layout rectangle (pos_min..pos_max) from 'ellipsis_max_x' which may be beyond it.
 // This is because in the context of tabs we selectively hide part of the text when the Close Button appears, but we don't want the ellipsis to move.
+// (BREAKING) On 2025/04/16 we removed the 'float clip_max_x' parameters which was preceeding 'float ellipsis_max' and was the same value for 99% of users.
 void ImGui::RenderTextEllipsis(ImDrawList* draw_list, const ImVec2& pos_min, const ImVec2& pos_max, float ellipsis_max_x, const char* text, const char* text_end_full, const ImVec2* text_size_if_known)
 {
     ImGuiContext& g = *GImGui;