Docs: document removal of ImFont const qualifier as potentially breaking.

docs/CHANGELOG.txt

@@ -54,6 +54,7 @@ Breaking changes:
     consider updating to 1.91.4 first, then #define IMGUI_DISABLE_OBSOLETE_KEYIO, then update to latest.
   - Obsoleted ImGuiKey_COUNT (it is unusually error-prone/misleading since valid keys don't start at 0).
     Probably use ImGuiKey_NamedKey_BEGIN/ImGuiKey_NamedKey_END?
+- Fonts: removed const qualifiers from most font functions in prevision for upcoming fonts improvements.
 
 Other changes:
 
@@ -61,7 +62,6 @@ Other changes:
   between _Header and _HeaderHovered which was introduced v1.91 (#8106, #1861)
 - Buttons: using ImGuiItemFlags_ButtonRepeat makes default button behavior use
   PressedOnClick instead of PressedOnClickRelease when unspecified.
-- Fonts: removed const qualifiers from most font functions.
 - InputText: fixed a bug (regression in 1.91.2) where modifying text buffer within
   a callback would sometimes prevents further appending to the buffer.
 - Tabs, Style: made ImGuiCol_TabDimmedSelectedOverline alpha 0 (not visible) in default
@@ -74,9 +74,9 @@ Other changes:
   and (3) text output comes in submission order rather than spatial order.
 - Backends: DX12: Unmap() call specify written range. The range is informational and
   may be used by debug tools.
-- Backends: SDL2: Replace SDL_Vulkan_GetDrawableSize() forward declaration with the 
-  actual include. (#8095, #7967, #3190) [@sev-] 
-- Backends: SDL2, SDL3: SDL_EVENT_MOUSE_WHEEL event doesn't require dividing 
+- Backends: SDL2: Replace SDL_Vulkan_GetDrawableSize() forward declaration with the
+  actual include. (#8095, #7967, #3190) [@sev-]
+- Backends: SDL2, SDL3: SDL_EVENT_MOUSE_WHEEL event doesn't require dividing
   by 100.0f on Emscripten target. (#4019, #6096, #1463)
 - Examples: SDL3+Vulkan: Added example. (#8084, #8085)
 - Examples: Android+OpenGL: Using ALooper_pollOnce() instead of ALooper_pollAll()
@@ -88,7 +88,7 @@ Other changes:
 
 Breaking changes:
 
-- Style: renamed ImGuiCol_NavHighlight to ImGuiCol_NavCursor, for consistency with 
+- Style: renamed ImGuiCol_NavHighlight to ImGuiCol_NavCursor, for consistency with
   newly exposed and reworked features. Kept inline redirection enum (will obsolete).
 - The typedef for ImTextureID now defaults to ImU64 instead of void*. (#1641)
   - This removes the requirement to redefine it for backends which are e.g. storing
@@ -104,9 +104,9 @@ Breaking changes:
   - Note that you can always define ImTextureID to be your own high-level structures
     (with dedicated constructors and extra render parameters) if you like.
 - IO: moved ImGuiConfigFlags_NavEnableSetMousePos to standalone io.ConfigNavMoveSetMousePos bool.
-- IO: moved ImGuiConfigFlags_NavNoCaptureKeyboard to standalone io.ConfigNavCaptureKeyboard bool 
+- IO: moved ImGuiConfigFlags_NavNoCaptureKeyboard to standalone io.ConfigNavCaptureKeyboard bool
   (note the inverted value!). (#2517, #2009)
-  Kept legacy names (will obsolete) + code that copies settings once the first time. 
+  Kept legacy names (will obsolete) + code that copies settings once the first time.
   Dynamically changing the old value won't work. Switch to using the new value!
 
 Other changes:
@@ -122,48 +122,48 @@ Other changes:
      - Set io.ConfigNavCursorVisibleAuto = true (default) to enable automatic toggling
        of cursor visibility (mouse click hide the cursor, arrow keys makes it visible).
      - Set io.ConfigNavCursorVisibleAlways to keep cursor always visible.
-  - Nav: added NavSetCursorVisible(bool visible) function to manipulate visibility of 
+  - Nav: added NavSetCursorVisible(bool visible) function to manipulate visibility of
     navigation cursor (e.g. set default state, or after some actions). (#1074, #2048, #7237, #8059)
   - Nav: added io.ConfigNavEscapeClearFocusItem and io.ConfigNavEscapeClearFocusWindow to change
     how pressing Escape affects navigation. (#8059, #2048, #1074, #3200)
     - Set io.ConfigNavEscapeClearFocusItem = true (default) to clear focused item and highlight.
     - Set io.ConfigNavEscapeClearFocusItem = false for Escape to not have an effect.
     - Set io.ConfigNavEscapeClearFocusWindow = true to completely unfocus the dear imgui window,
-      is for some reason your app relies on imgui focus to take other decisions.  
+      is for some reason your app relies on imgui focus to take other decisions.
   - Nav: pressing escape to hide the navigation cursor doesn't clear location, so it may be
     restored when Ctrl+Tabbing back into the same window later.
   - Nav: fixed Ctrl+Tab initiated with no focused window from skipping the top-most window. (#3200)
-  - Nav: navigation cursor is not rendered for items with `ImGuiItemFlags_NoNav`. Can be relevant 
+  - Nav: navigation cursor is not rendered for items with `ImGuiItemFlags_NoNav`. Can be relevant
     when e.g activating a _NoNav item with mouse, then Ctrl+Tabbing back and forth.
-- Disabled: clicking a disabled item focuses parent window. (#8064) 
+- Disabled: clicking a disabled item focuses parent window. (#8064)
 - InvisibleButton, Nav: fixed an issue when InvisibleButton() would be navigable into but
   not display navigation highlight. Properly navigation on it by default. (#8057)
 - InvisibleButton: added ImGuiButtonFlags_EnableNav to enable navigation. (#8057)
-- Tooltips: fixed incorrect tooltip positioning when using keyboard/gamepad navigation 
+- Tooltips: fixed incorrect tooltip positioning when using keyboard/gamepad navigation
   (1.91.3 regression). (#8036)
 - DrawList: AddCallback() added an optional size parameter allowing to copy and
   store any amount of user data for usage by callbacks: (#6969, #4770, #7665)
   - If userdata_size == 0: we copy/store the 'userdata' argument as-is (existing behavior).
     It will be available unmodified in ImDrawCmd::UserCallbackData during render.
   - If userdata_size > 0, we copy/store 'userdata_size' bytes pointed to by 'userdata' (new behavior).
-    We store them in a buffer stored inside the drawlist. ImDrawCmd::UserCallbackData 
+    We store them in a buffer stored inside the drawlist. ImDrawCmd::UserCallbackData
     will point inside that buffer so you have to retrieve data from there. Your callback
     may need to use ImDrawCmd::UserCallbackDataSize if you expect dynamically-sized data.
   - Note that we use a raw type-less copy.
 - Tables: fixed initial auto-sizing issue with synced-instances. (#8045, #7218)
 - InputText: fixed an issue with not declaring ownership of Delete/Backspace/Arrow keys,
-  preventing use of external shortcuts that are not guarded by an ActiveId check. (#8048) 
+  preventing use of external shortcuts that are not guarded by an ActiveId check. (#8048)
   [@geertbleyen]
-- InputText: ensure mouse cursor shape is set regardless of whether keyboard mode is 
+- InputText: ensure mouse cursor shape is set regardless of whether keyboard mode is
   enabled or not. (#6417)
 - InputScalar: added an assert to clarify that ImGuiInputTextFlags_EnterReturnsTrue is not
   supported by InputFloat, InputInt, InputScalar etc. widgets. It actually never was. (#8065, #3946)
-- imgui_freetype: Added support for plutosvg (as an alternative to lunasvg) to render 
+- imgui_freetype: Added support for plutosvg (as an alternative to lunasvg) to render
   OpenType SVG fonts. Requires defining IMGUI_ENABLE_FREETYPE_PLUTOSVG along with IMGUI_ENABLE_FREETYPE.
   Providing headers/librairies for plutosvg + plutovg is up to you (see #7927 for help).
   (#7927, #7187, #6591, #6607) [@pthom]
 - Backends: DX11, DX12, SDLRenderer2/3. Vulkan, WGPU: expose selected state in
-  ImGui_ImplXXXX_RenderState structures during render loop user draw callbacks. 
+  ImGui_ImplXXXX_RenderState structures during render loop user draw callbacks.
   (#6969, #5834, #7468, #3590)
 - Backends: DX9, DX10, DX11, DX12, OpenGL, Vulkan, WGPU: Changed default texture sampler
   to Clamp instead of Repeat/Wrap. (#7468, #7511, #5999, #5502, #7230)

imgui.cpp

@@ -440,6 +440,7 @@ CODE
                               - read https://github.com/ocornut/imgui/issues/4921
                             - if you have trouble updating a very old codebase using legacy backend-specific key codes: consider updating to 1.91.4 first, then #define IMGUI_DISABLE_OBSOLETE_KEYIO, then update to latest.
                        - obsoleted ImGuiKey_COUNT (it is unusually error-prone/misleading since valid keys don't start at 0). probably use ImGuiKey_NamedKey_BEGIN/ImGuiKey_NamedKey_END?
+                       - fonts: removed const qualifiers from most font functions in prevision for upcoming font improvements.
  - 2024/10/18 (1.91.4) - renamed ImGuiCol_NavHighlight to ImGuiCol_NavCursor (for consistency with newly exposed and reworked features). Kept inline redirection enum (will obsolete).
  - 2024/10/14 (1.91.4) - moved ImGuiConfigFlags_NavEnableSetMousePos to standalone io.ConfigNavMoveSetMousePos bool.
                          moved ImGuiConfigFlags_NavNoCaptureKeyboard to standalone io.ConfigNavCaptureKeyboard bool (note the inverted value!).