v0.8

• Add a user settings page in Preferences > Plug-ins > ReaImGui:
  • Option to disable restoration of saved settings ("safe mode")
  • Option to select which graphics renderer to use
• Display indirect errors in a custom, more user-friendly dialog
• Implement bitmap image loading (PNG and JPEG from a file or memory) and image sets (per-DPI variants)
• macOS: add a Metal renderer (new default, requires El Capitan or newer)
• Share GPU textures with all windows in the same context (except on Linux due to a GDK 3 limitation)
• Update dear imgui to v1.89.1 (v1.89 release notes, v1.89.1)
• Windows: add a Direct3D 10 renderer (new default)
• Windows: disable minimizing and use the tool window style when decorations are enabled
• Windows: support mouse input everywhere in windows straddling multiple monitors with mixed DPI scales

Documentation:

• DRY-ify default argument values (code + doc using a single source of truth)
• Hide the "ImGui_" prefix
• More accurate line number ranges in links to source code
• Reorganize all functions in hierarchical, individually documented sections
• Rich-text formatting (Markdown <3)
• Syntax highlighting of code samples (if client-side Javascript is enabled)

API changes:

• Add {Attach,Detach} for linking the lifetime of any object with a context
• Add ConfigFlags_NavNoCaptureKeyboard
• Add ConfigVar_HoverDelay{Normal,Short} and ConfigVar_InputTextEnterKeepActive
• Add GetFramerate
• Add HoveredFlags_{Delay{Normal,Short},NoSharedDelay}
• Add Image{,Button} and DrawList_AddImage{,Quad,Rounded}
• Add InputTextFlags_EscapeClearsAll
• Add Key_Mouse*
• Add Mod_Shortcut (alias for _Ctrl on Linux & Windows and _Super, the Cmd key, on macOS)
• Remove {Attach,Detach}Font (replaced by generic {Attach,Detach} functions)
• Rename ModFlags_* and Key_Mod* to Mod_*

v0.7.2

• Fix window under the window under mouse getting hovered for 1 frame on mouse release
• macOS: fix crash when the context is destroyed while a window is docked
• macOS: fix framebuffer size not updating when switching from another docker tab
• macOS: fix non-initial windows not gaining focus on open
• Windows: fix multiple DPI scaling issues

API changes:

• Add GetWindowDpiScale

gfx2imgui:

• Add GFX2IMGUI_NO_BLIT_PREMULTIPLY option [p=2609372]
• Fix nearest font selection when sizes smaller than requested are loaded [p=2609372]
• Keep alive fonts while they're actively being drawn from a blitted buffer [p=2609372]
• Warn when substituting font for the default one

v0.7.1

• Add a translation layer for running gfx scripts on ReaImGui (gfx2imgui.lua)
• Enable SetNextWindowBgAlpha for all windows
• Fix corrupted font texture in contexts having windows using different DPI scaling
• Fix assertion failure after attaching fonts when more than one DPI scale is used
• Fix potential crash on exit in REAPER < 6.67 due to plugin registration keys being invalidated [cfillion/reapack#56]
• macOS: fix pressed keyboard keys getting stuck when opening modal dialogs
• macOS: fix rescaling when moving windows to a monitor using a different DPI setting
• macOS: fix windows not moving above the menu bar on macOS 12 [p=2579183]
• macOS: gain keyboard focus when switching from another docker tab

API changes:

• Add the DrawListSplitter API

v0.7

• Add backward-compatibility script imgui.lua
• Fix broken mouse inputs after destroying a window while a mouse button is down
• Implement window transparency (requires REAPER v6.55+ on Linux)
• Increase maximum object allocation limit to 1000
• Linux: harden v0.6's improved mouse and keyboard input (now requires REAPER v6.57+)
• Optimize object pointer validation (about 2x faster)
• Patch dear imgui to enable background alpha and corner rounding for top-level windows
• Update dear imgui to v1.88 (release notes)

API changes:

• Add ColorConvert{Double4ToU32,U32ToDouble4}
• Add DebugTextEncoding
• Add GetWindowViewport
• Add HoveredFlags_NoNavOverride
• Add ShowDebugLogWindow
• Combo and ListBox: use null bytes for delimiting items as in vanilla dear imgui (now requires REAPER 6.44+ in Lua and EEL) [t=261079]
• Distinguish between empty and nil optional strings in Lua on REAPER 6.58+ [t=266405]
• Expose additional context settings via {Get,Set}ConfigVar
• Nerf ColorConvert{RGBtoHSV,HSVtoRGB}'s packed integer return value and optional alpha argument [t=266396]
• Python: unexpose output-only values from the argument list
• Python: unexpose unsafe buffer size arguments
• Rename CaptureKeyboardFromApp to SetNextFrameWantCaptureKeyboard
• Rename KeyModFlags_* constants to ModFlags_*
• Reorder GetVersion's return values and add IMGUI_VERSION_NUM
• Replace {Get,Set}ConfigFlags with {Get,Set}ConfigVar(ConfigVar_Flags)

v0.6.2

• Fix a crash when destroying list clippers while a different context is active
• Fix empty points array crashing DrawList_Add{Polyline,ConvexPolyFilled}
• Linux: restore broken key up/down events when an IME is active
• macOS: allow OpenGL software renderering for wider compatibility
• macOS: fix keyboard input when holding down a mouse button and the "Allow keyboard commands when mouse-editing" setting is disabled [p=2552296]
• Windows: receive Alt key events when "Prevent ALT key from focusing main menu" is enabled

API changes:

• DrawList_PathArcTo: fix incorrect default value for num_segments when omitted
• Revert "Fix DrawList_AddTextEx not using the default bitmap font when font == nil" from v0.6

v0.6.1

• Export main demo functions to scripts including the demo file
• Fix broken anti-aliasing after attaching a font
• Fix the first frame of every window being rendered blank
• Linux: fix a crash when quitting REAPER while docked ReaImGui windows are open
• Linux: repair file drag and drop
• Windows: prevent incorrect focus when closing windows out of order

v0.6.0

• Add support for mouse buttons 4 and 5 (3 and 4 in the API)
• Distinguish between Left/Right modifier keys and Enter/KeypadEnter keys
• Fix a crash when failing to initialize the OpenGL renderer for docked windows
• Migrate mouse and keyboard input to v1.87's new event-based API
• Reduce the minimum required version of OpenGL to 3.1
• Suspend keyboard and mouse input when the defer timer is blocked (eg. modal dialog)
• Update to Dear ImGui v1.87 (release notes)
• Linux: connect Dear ImGui's clipboard to the system clipboard
• Linux: fix crashes when recovering from OpenGL initialization errors
• Linux: fix inverted NWSE/NESW cursors
• Linux: implement IME and proper Unicode character input support
• Linux: workaround black/flashing windows when docked with Intel or AMD GPUs [#6]
• macOS: change Hand cursor to a pointing hand (instead of open hand)
• macOS: hide the IME when focusing out of text fields
• Windows: enable the IME only when a text field is active
• Windows: set position of the IME's candidate window to the active text input field

Demo script:

• Add Help->Programmer Guide section
• Add text filtering in the Log app example
• Add the CaptureKeyboardFromApp() example
• Fix the last item not being reorderable in the 'simple drag' example
• Move the 'Documentation' button out of the Tools menu
• Partial port of the Style Editor window (Tools->Style Editor)

API changes:

• Add v1.87's new named key constants (virtual key codes are now deprecated)
• Fix DrawList_AddTextEx not using the default bitmap font when font == nil
• Remove GetStyleColorName (enumerate the reaper table instead)
• Remove the redundant num_points argument of DrawList_AddConvexPolyFilled

v0.5.10

• Update to Dear ImGui v1.86 (release notes)

API changes:

• Add GetMouseClickedCount
• Add ListClipper_ForceDisplayRangeByIndices

v0.5.9

• Docker: fix no rendering on macOS if opened within the first 3 frames of the context
• Docker: obey WindowFlags_NoFocusOnAppearing if set on any hosted windows
• Fix the main viewport having a zero position and size [p=2498028]
• Fix WindowFlags_NoFocusOnAppearing not having an effect within the first 3 frames
• Update to Dear ImGui v1.85

API changes:

• Add DockHierarchy and NoPopupHierarchy in both FocusedFlags and HoveredFlags
• Add ShowStackToolWindow (also Demo->Tools->Stack Tool)
• Remove GetWindowContentRegionWidth

v0.5.8

• Font: downgrade FreeType to 2.10.4 as workaround for a crash in 2.11.0 on Windows [p=2486019][p=2486079]
• Linux: fix window visibility when dragging them over REAPER's main window [p=2486034]