-------------------------------------------------------------------------------
                             wxWidgets Change Log
-------------------------------------------------------------------------------

Note: This file contains the list of changes since wxWidgets 3.x, please see
      docs/changes_30.txt for the changes in the previous versions.


INCOMPATIBLE CHANGES SINCE 3.0.x:
=================================

Changes in behaviour not resulting in compilation errors
--------------------------------------------------------

- wxRibbonButtonBar::DeleteButton() now deletes and not just removes the button.
- Default interpolation mode in wxGDIPlusContext under MSW is now
  wxINTERPOLATION_DEFAULT and not wxINTERPOLATION_GOOD as in 3.0 for
  consistency with OS X, call SetInterpolationQuality() explicitly if needed.

- Calling wxYield() in wxMSW now generates wxEVT_IDLE events, just as in the
  other ports, but this can be unexpected for the applications not expecting
  their idle handlers to be called from inside wxYield().

- Creating wxBitmap with 0 width or height now always fails in all ports
  (it used to succeed in wxMSW).

- Using invalid flags with wxBoxSizer or wxGridSizer items now triggers asserts
  when done from the code or error messages when done in XRC.

- wxWS_EX_VALIDATE_RECURSIVELY is now the default behaviour, i.e. calling
  Validate() or TransferData{From,To}Window() will now also call the same
  function for all children.

- wxOSX/Carbon port doesn't exist any more, wxOSX/Cocoa will be silently used
  instead even if configure --with-osx_carbon option is used.

- The pure virtual function wxAppTrait::GetToolkitVersion() now has a parameter
  for getting the micro version. If you override GetToolkitVersion() you need
  to add this new third parameter.

- wxWindow::CreateAccessible() doesn't return accessible object by default
  anymore and GetOrCreateAccessible() may return NULL, indicating that native
  system-provided accessibility should be used.

- wxMSW port doesn't always let the system process WM_SYSKEYDOWN events any
  more, make sure to call event.Skip() in your wxEVT_KEY_DOWN and/or wxEVT_CHAR
  event handlers if you want the standard key combinations such as Alt-Space or
  Alt-F4 to work.

- wxOSX port uses default button margins for wxBitmapButton by default, for
  consistency with the other ports. You now need to call SetMargins(0, 0)
  explicitly if you really don't want to have any margins in your buttons.

- wxEVT_AUINOTEBOOK_PAGE_CHANGED event is now sent after changing the page,
  as expected, and not before doing it.

- wxJoystickEvent::GetButtonChange() now returns "1 << N" for the events
  generated by the button number N under all platforms, whereas it used to
  return just "N" under Linux and macOS. Use the new GetButtonOrdinal() to
  update the existing code if necessary.

- Generic wxDataViewCtrl now always resizes its last column to fill all the
  available space, as the GTK+ version always did.


Changes in behaviour which may result in build errors
-----------------------------------------------------

- "webview" library is not included in `wx-config --libs` output any more, you
  need to request it explicitly, e.g. `wx-config --libs std,webview`.

- wxMSW now requires linking with uxtheme.lib, shlwapi.lib and version.lib.
  This is done automatically in most cases, but if you use a static build of
  the library with a non-MSVC compiler such as MinGW and do not use wx-config,
  then you will need to add these libraries to your make or project files
  yourself.

- WXWIN_OS_DESCRIPTION doesn't exist any longer, use wxGetOsDescription().

- Never documented and not always available private wxGetClipboardData()
  function now doesn't exist at all any more in wxMSW, use wxClipboard instead.

- wxGraphicsRenderer::CreatePen() now takes wxGraphicsPenInfo and not a wxPen.
  This only affects code defining its own custom renderers, code just using
  wxGraphicsContext::CreatePen() continues to compile and work as before.

- wx/treebook.h doesn't include wx/treectrl.h (and, via it, wx/textctrl.h) any
  more, include these headers explicitly from your code if necessary.

- wxHtmlDCRenderer::Render() arguments have changed, simply omit the ones not
  existing in the function signature any more to update the code using it.

- wxHtmlCell::AdjustPagebreak() has lost its "known_pagebreaks" argument,
  update your code if you override this method (you shouldn't be calling it).

- wxListCtrl::SetItem() overload taking the column index now returns bool and
  not long. Its return value hasn't changed, however, and is still always
  either true or false, so normally the existing code should continue to work.

- configure only accepts the options it knows about now and doesn't silently
  ignore all the rest. If you get errors about unknown options, you may either
  specify --disable-option-checking argument to continue accepting them (which
  only ever makes sense if you pass these options to sub-configure scripts) or,
  e.g. if the error is due to spelling an option name wrongly, fixing or
  removing its name.


3.1.3: (released 2019-??-??)
----------------------------

INCOMPATIBLE CHANGES SINCE 3.1.2:

- New wxTranslations::GetAcceptableTranslations() method was problematic and
  was removed, fixing various regressions in wxTranslations::AddCatalog() that
  were introduced by it. Thanks to Tomasz Słodkowicz and Dummy for reporting
  this and providing fixes for it.


All (GUI):

- Fix wxInfoBar close button size in high DPI (Stefan Ziegler).
- Make disabling the window before creating it actually work.
- Implement wxAuiNotebook::GetBestSize() (Sebastian Walderich).
- Allow changing tooltip text for button allowing to enter a new string
  in wxPGArrayEditorDialog.


3.1.2: (released 2018-12-10)
----------------------------

All:

- Add wxLZMA{Input,Output}Stream classes using external liblzma.
- Make wxList and wxVector iterators conform to input iterator requirements.
- Fix MT-safety problem when reading and writing from wxSocket (jkubalik).
- Fix build issues under HaikuOS (mill-j).
- Fix problem with wx-config installation and use under NetBSD (wiz).
- Avoid spurious errors on thread creation under NetBSD.
- Improve high DPI support in wxAui (Simon Rozman).
- Fix a bug with parsing time zones in wxDateTime::ParseFormat() (evileye).
- Update all 3rd party libraries to their latest versions (Maarten Bent).

All (GUI):

- wxAdvanced library was merged into wxCore, simply remove all references
  to "adv" from your build system, it is not needed any longer.
- Add support for non-integer font sizes (e.g. 10.5pt fonts).
- Add support for font weights in 1..1000 interval and not just light/bold.
- Add wxDataViewToggleRenderer::ShowAsRadio().
- Improve stock items consistency and aesthetics (dhowland).
- Fix bug with missing items in overflowing AUI toolbar (Maarten Bent).
- Revert to left-aligning wxSpinCtrl contents by default.
- Make wxRibbonButtonBar buttons more customizable (Max Maisel).
- Add wxHtmlEasyPrinting::SetPromptMode() (pavel-t).
- Fix possible infinite loop in wxHtmlWindow layout (trivia21).
- Add "hint" property support to XRC for wxComboBox and wxSearchCtrl.
- Add support for style="page-break-inside:avoid" to <div> in wxHTML.
- Support strike-through in wxDataViewItem attributes (approach, Igor Korot).
- Allow distinguishing between user- and script-opened windows in wxWebView.
- Allow binding to events generated by their items in submenus too.
- Add wxGrid::SetCornerLabelValue() (Pavel Kalugin).
- Add strikethrough support for fonts defined in XRC.
- Add wxDisplay::GetPPI().
- Add wxJoystickEvent::GetButtonOrdinal() (Mick Phillips).
- Add wxGraphicsContext::GetWindow() and implement wxGraphicsContext::GetDPI().
- Add wxToolbook::EnablePage() (Stefan Ziegler).
- Adapt AUI colours to system colour changes (Daniel Kulp).
- Fix removing and inserting pages in wxToolbook (Stefan Ziegler).
- Fix bug in template selection in docview framework (jwiesemann).
- Implement wxAuiNotebook::HitTest() (Sebastian Walderich).

wxGTK:

- Implement wxTextCtrl::HitTest() for single line controls.
- Fix bug with wxTextCtrl::ChangeValue("") sending an unwanted event.
- Implement wxDataViewColumn::UnsetAsSortKey().
- Fix not showing wxInfoBar with GTK+ 3 < 3.22.29.
- Fix the build with glib < 2.32 (e.g. CentOS 6).
- Fix field widths in wxStatusBar showing a size grip.
- Fill column value in wxEVT_DATAVIEW_ITEM_ACTIVATED events.
- Implement wxDataViewCtrl::GetItemRect() (MrMeesek).

wxMSW:

- Add experimental support for Windows 10/ARM64 platform (Simon Rozman).
- Fix hang after clearing wxTAB_TRAVERSAL style on a window with children.
- Fix handling of AUX2 mouse button events (Timon Rozmanrylz).
- Implement support for more than 4 joystick buttons (Mick Phillips).
- Fix saving/restoring window position for maximized windows.
- Fix stack corruption when using wxStackWalker (srfisk).
- Fix positioning windows at positions >= SHORT_MAX (Cătălin Răceanu).
- Honour alignment flags for multiline buttons using custom colours too.
- Support MSVC auto-linking when using monolithic build too (PB).
- Implement wxFontDialog::SetTitle() (Vitaly Stakhovsky).
- Fix build in ANSI (non-Unicode) mode.
- Improve wxNotebook themed background drawing (Arrigo Marchiori).
- Send wxEVT_WEBVIEW_NAVIGATING when redirecting (Josue Andrade Gomes).
- Fix build with MSVS 2005 broken in 3.1.1.
- Add wxwidgets.props property sheet file for MSVS users.
- Fix jumping to the given position in wxMediaCtrl (ashishmore).

wxOSX:

- Fix dispatching pending events (and CallAfter()) in console applications.
- Implement wxDataViewColumn::UnsetAsSortKey() (Daniel Kulp).
- Change wxBitmap to use native image format like NSImage and UIImage.
- Implement wxStaticBitmap natively for correct rendering of template images.
- Fill column value in wxEVT_DATAVIEW_ITEM_ACTIVATED events (Igor Korot).
- Make wxFrame::EnableFullScreenView() work under macOS 10.11+ (Andy Robinson).

wxQt:

- Fix menu bar background colour (Naser Buhamad).
- Add support for bitmaps in menu items (Igor Korot).


3.1.1: (released 2018-02-19)
----------------------------

INCOMPATIBLE CHANGES SINCE 3.1.0:

- wxListCtrl::HasCheckboxes() and EnableCheckboxes(), which were added in
  3.1.0, have been renamed to HasCheckBoxes and EnableCheckBoxes respectively
  for consistency with wxCheckBox naming.

- The enum value wxTASKBAR_JUMP_LIST_DESTIONATION, which was added in 3.1.0,
  contains a typo and has been renamed to wxTASKBAR_JUMP_LIST_DESTINATION.

- wxZipOutputStream will now automatically convert filenames to UTF-8, if the
  wxMBConv used when calling the constructor supports UTF-8 encoding.


All:

- Add CMake-based build system (Tobias Taschner).
- Add wxSecretStore for storing passwords using the OS-provided facilities.
- Add support for compiling application code with wxNO_UNSAFE_WXSTRING_CONV.
- Add support for translating strings in different contexts (RickS).
- Add wxDateTime::GetFirstWeekDay() (Lauri Nurmi).
- Add support for the micro version (third component) to OS and toolkit version
  functions. See wxGetOsVersion(), wxPlatformInfo, and wxAppTraits.
- wxLogInfo() now logs messages if the log level is high enough, even without
  wxLog::SetVerbose() which now only affects wxLogVerbose().
- Add wxFileType::GetExpandedCommand() (troelsk).
- Make it easier to convert to/from UTF-8-encoded std::string (ARATA Mizuki).
- Support custom conversions in wxLogStream and wxLogStderr (Lauri Nurmi).
- Add support for loading dynamic lexer in wxStyledTextCtrl (New Pagodi).
- Handle strings with embedded NULs in wxDataStream (Nitch).
- Don't crash in wxTextFile::GetLastLine() if the file is empty (crohr).
- Add wxString::cbegin() and cend() method (Lauri Nurmi).
- Allow using Bind() with event handlers non-publicly deriving from
  wxEvtHandler and/or wxTrackable in C++11 code (Raul Tambre, mmarsan).
- Update bundled expat to 2.2.0 (Catalin Raceanu).
- Add wxCMD_LINE_HIDDEN wxCmdLineParser flag (Lauri Nurmi).
- Fix wxRmdir() with non-ASCII paths (trivia21).
- Don't crash in wxFFile::Eof() or Error() on closed file (jprotopopov).
- Add UTF-8 support to wxZipOutputStream (Tobias Taschner).
- Update all bundled 3rd party libraries to their latest versions.
- Use unique prefix for all zlib symbols to avoid link conflicts.
- Make wxFile::ReadAll() work for unseekable files too.
- Correct UTF-8 encoding of U+FFFF (axiom).

All (GUI):

- Allow wxWebView::RunScript() return values (Jose Lorenzo, GSoC 2017).
- Allow using fractional pen widths with wxGraphicsContext (Adrien Tétar).
- Add support for loading fonts from external files (Arthur Norman).
- Add support for using arbitrary windows as wxStaticBox labels.
- Improve wxSVGFileDC to support more of wxDC API (Maarten Bent).
- Add support for wxAuiManager and wxAuiPaneInfo to XRC (Andrea Zanellato).
- Add XRC handler for wxSpinCtrlDouble (Trylz).
- Add support for wxSL_MIN_MAX_LABELS and wxSL_VALUE_LABEL to XRC (ousnius).
- Update Scintilla to v3.7.2 (NewPagodi, Paul Kulchenko).
- Update bundled libpng to 1.6.28 (Catalin Raceanu).
- Automatically determine first day of the week in wxCalendarCtrl (Lauri Nurmi).
- Fix vertical scrollbar visibility in wxStyledTextCtrl (yenwu, NewPagodi).
- Fix bug with not being able to select AUI tab after dragging.
- Make wxDataViewCtrl::Expand() expand ancestors in native ports too.
- Add wxDataViewTextRenderer::EnableMarkup().
- Add wxDataViewCtrl::SetHeaderAttr().
- Add wxDataViewCtrl::GetTopItem() and GetCountPerPage() (Andreas Falkenhahn).
- Add wxListCtrl::SetHeaderAttr().
- Add support for using markup in wxDataViewCtrl text items.
- Implement auto complete in generic wxSearchCtrl (Eric Jensen).
- Fix preserving selection when changing selection mode in wxGrid (jonkraber).
- Fix wxTextEntry::SetHint() with wxTE_PASSWORD in generic implementation.
- Many fixes and improvements in Direct2D, Cairo, and GDI+ graphics renderers.
- Fix and unify clipping region support for MSW and GTK+.
- Fix rescaling of wxImage.
- Fix displaying edited value of wxUIntProperty (wxPropertyGrid).
- Fix displaying validation errors for numeric wxPropertyGrid properties.
- Add wxSYS_CARET_{ON,OFF,TIMEOUT}_MSEC system settings (brawer).
- Add wxGraphicsContext::GetClipBox().
- Fix wxGCDC::Clear() for rotated graphics context.
- Fix wxGCDC::GetClippingBox() for transformed wxDC.
- Add support for affine transformation matrix in wxGCDC.
- Add wxGraphicsContext::Flush() for Cairo renderer.
- Add wxStyledTextEvent::GetListCompletionMethod() (NewPagodi).
- Add wxEVT_STC_AUTOCOMP_COMPLETED event (NewPagodi).
- Fix retrieving bounding box for wxDC with transformed coordinates.
- Fix wxGraphicsMatrixData::Concat() for Direct2D and Cairo renderers.
- Fix calculating point position in wxDataViewCtrl::HitTest().
- Fix position of the rectangle returned by wxDataViewCtrl::GetItemRect().
- Add wxDataViewRenderer::GetAccessibleDescription().
- Add wxDataViewCheckIconTextRenderer class.
- Implement persistence support for wxDataViewCtrl (iwbnwif).
- Improve wxImage::Scale() handling of pixels with alpha channel (Tim Kosse).
- Fix parsing of RGBA strings in wxColour (Laurent Poujoulat).
- Refactor code in wxQuantize() for MSVC to avoid crash.
- Fix drawing rotated and/or underlined text on wxPostScriptDC.
- Support multiline strings in wxPostScriptDC::DrawText(), DrawRotatedText().
- Deprecate wxEVT_STC_KEY and wxEVT_STC_URIDROPPED events (NewPagodi).
- Optimize font registration in PostScript code emitted by wxPostScriptDC.
- Fix drawing filled arc with wxPostScriptDC::DrawArc().
- Optimize PostScript code emitted by wxPostScriptDC to draw elliptic arcs.
- Add wxStyledTextCtrl::AutoCompGetCurrentText() (NewPagodi).
- Extend wxStyledTextCtrl::FindText() to return end position of matched
  text (NewPagodi).
- Fix adding/removing items to/from wxRearrangeList.
- Handle wxST_ELLIPSIZE_XXX styles in wxStaticText XRC handler (tm).
- Add support for bitmaps to wxToggleButton XRC handler (tm).
- Fix wxGCDC::SetDeviceClippingRegion().
- Never restore size smaller than the best one in wxPersistentTLW.
- Fix escaping/unescaping characters in wxLongStringProperty in wxPG (mikek).
- Ensure that navigation order reflects layout of wxStdDialogButtonSizer.
- Add Scintilla FineTicker methods to wxSTC (NewPagodi).
- Add wxFontPickerCtrl::SetMinPointSize() (Andreas Falkenhahn).
- Add Set/GetFooter/Text/Icon() to wxRichMessageDialog (Tobias Taschner)
- Add wxFloatingPointValidator::SetFactor().
- Add "hint" property to wxSearchCtrl XRC handler.
- Add wxEVT_SEARCH[_CANCEL] synonyms for wxSearchCtrl events.
- Generate wxEVT_SEARCH on Enter under all platforms.
- Extend wxRendererNative::DrawGauge() to work for vertical gauges too.
- Add wxHD_BITMAP_ON_RIGHT style to wxHeaderCtrl.
- Send wxEVT_DATAVIEW_ITEM_EDITING_DONE when editing was cancelled too.
- Add wxIMAGE_OPTION_GIF_TRANSPARENCY (Hugo Elias).

wxGTK:

- Make wxUIActionSimulator work with GTK+ 3 (Scott Talbert).
- Make wxBORDER_NONE work for wxTextCtrl with GTK+ 3 (Adrien Tétar).
- Handle wxTE_PROCESS_TAB, and its absence, correctly in multiline wxTextCtrl.
- Apply wxTextCtrl::SetDefaultStyle() to user-entered text (Andreas Falkenhahn).
- Implement dynamic auto-completion in wxTextEntry (AliKet).
- Fix wxTextCtrl::GetStyle() with GTK+ 3.
- Fix wxButton::SetBitmapPosition() with GTK+ 3 (Jake Nelson).
- Support background colour in wxDataViewCtrl attributes.
- Fix regression with showing custom wxDataViewCtrl editors.
- Improve wxSpinCtrl best size calculation.
- Implement support for icon locations in wxMimeTypesManager (Hanmac).
- Improve wxRadioBox appearance in high DPI (Arrigo Marchiori, Maarten Bent).
- Cosmetic fix for empty wxCheckBoxes display (Chuddah).
- Fix crashes in wxFileSystemWatcher implementation (David Hart).
- Fix wxBitmap ctor from XBM for non-square bitmaps.
- Fix wxDC::GetClippingBox() for transformed wxDC.
- Add support for affine transformation matrix in wxDC (GTK+ 3).
- Fix wxMemoryDC::Blit() with itself as source (GTK+ 3).
- Fix displaying labels of wxRadioBox items.
- Add a native implementation for clearing bitmap/window wxGraphicsContexts
- Implement XYToPosition() for single-line wxTextCtrl.
- Implement ShowPosition() for single-line wxTextCtrl.
- Improve wx{Client,Paint,Screen,Window}DC::GetPPI() (GTK+ 3).
- Suppress focus loss events for wxChoice and wxComboBox on opening popup.
- Make custom URI schemes work WebKit2-based wxWebView (Scott Talbert).

wxMSW:

- Add support for building with Microsoft Visual Studio 2017 (Tobias Taschner).
- Allow loading icons from resources in wxIconBundle (PB).
- Enable wxStackWalker in MinGW64 builds.
- Fix build under Cygwin in 64 bits.
- Fix crash when using wxCHMHelpController() in 64 bit builds (Xlord2).
- Fix wxSpinCtrl appearance: show arrows inside the control (Catalin Raceanu).
- Fix MDI menu display after failure to create a child frame (troelsk).
- Fix wxScreenDC::GetSize() with multiple monitors (iwbnwif).
- Fix background colour returned by wxTextCtrl::GetStyle() (Andreas Falkenhahn).
- Revert to using equally-sized buttons in wxToolBar by default.
- Fix default button highlighting.
- Restore dispatching wxThreadEvent while resizing the window broken in 3.1.0.
- Fix wxGraphicsMatrix::TransformDistance for Direct2D renderer.
- Fix wxDC::Clear() for rotated DC.
- Fix wxDC::GetClippingBox() for transformed wxDC.
- Fix wxMemoryDC::Blit() with itself as source (Tim Roberts).
- Return proper value from wxIAccessible::get_accSelection() if no children
  are selected.
- Add wxAccStatus::wxACC_INVALID_ARG error code to indicate argument-related
  errors in wxAccessible methods.
- Return DISP_E_MEMBERNOTFOUND error code from wxIAccessible if wxAccessible
  methods return wxAccStatus::wxACC_NOT_SUPPORTED.
- Return null BSTR from wxIAccessible if string returned from wxAccesible
  method is empty.
- Handle Ctrl-A in non-rich multiline text controls (Jens Göpfert).
- Use cairo_win32_surface_create_with_format() to create ARGB surface from
  wxMemoryDC (Cairo >= 1.15.4).
- Fix updating bounding box in wxDC::DrawSpline().
- Fix placing 0RGB wxBitmaps on the clipboard.
- Fix handling wxClipboard data when wxUSE_OLE == 0.
- Fix caching of wxFONTSTYLE_SLANT fonts in wxTheFontList.
- Fix wxTextCtrl::XYToPosition() and PositionToXY().
- Fix updating radio groups when non-radio item is inserted to wxMenu.
- Fix autoselecting the contents of wxTextCtrl with wxWANTS_CHARS style.
- Implement SetIcon(), SetPosition(), GetPosition() for native wxProgressDialog.
- Fix focus-related problems when using native wxProgressDialog.
- Fix crash when reparenting the currently focused window to another TLW.
- Fix sending wxEVT_TEXT_ENTER when using auto-completion (Dubby).
- Fix missing selection event on click in multiselection wxDataViewCtrl (mikek).

wxOSX:

- Many fixes for tab navigation (ikamakj).
- Fix handling of non-BMP characters in GetPartialTextExtents() (ARATA Mizuki).
- Fix setting foreground colour for several controls (Steve Browne).
- Fix dialogs using wxFRAME_FLOAT_ON_PARENT frame as parent (Lauri Nurmi).
- Implement wxGetDisplaySizeMM() and fix printing DPI (David Vanderson).
- Remove extra borders around wxFilePickerCtrl (John Roberts).
- Set up extensions filter correctly in wxFileDialog (nick863).
- Implement wxDataViewChoiceByIndexRenderer (wanup).
- Fix unnecessary indentation in list-like wxDataViewCtrl (Andreas Falkenhahn).
- Recognize macOS 10.12 Sierra in wxGetOsDescription() (Tobias Taschner).
- Don't try to open command line arguments as files (Jeff Hostetler).
- Implement wxDataViewCtrl::SetRowHeight().
- Add OSXEnableAutomaticQuoteSubstitution(), OSXEnableAutomaticDashSubstitution()
  and OSXDisableAllSmartSubstitutions() to control wxTextCtrl smart behavior.
- Don't allow interacting with disabled wxSlider (Andreas Falkenhahn).
- Fix setting alignment in wxTextCtrl with wxTE_DONTWRAP (Andreas Falkenhahn).
- Allow pasting using Cmd+V in wxTextCtrl with wxTE_PASSWORD style.
- Update font code to use toll-free bridges from CTFontRef to NSFont or UIFont
- Add a native implementation for clearing bitmap/window wxGraphicsContexts
- wxiOS now needs a minimum of iOS 9 for deployment
- Fix handling CTM in wxGraphicsContext::SeTransform and GetTransform().
- Allow turning on/off opacity selector in wxColourDialog.
- Implement wxTextCtrl::PositionToXY() and XYToPosition().
- Implement wxTextCtrl::ShowPosition().
- Add support for wxTE_NO_VSCROLL style to wxTextCtrl.
- Add support for wxTE_CHARWRAP style to wxTextCtrl.
- Fix selecting RGB bitmaps (with no alpha channel) into wxMemoryDC.
- Fix updating radio groups when menu item is inserted/removed from wxMenu.
- Allow changing alignment styles after wxTextCtrl creation (Andreas Falkenhahn).
- Fix wxDataViewColumn::SetSortOrder() (hartwigw).

wxQt

- Many changes and improvements by Sean D'Epagnier merged into trunk (with
  help from R.J.V. Bertin).

Unix:

- Support new gstreamer API in 1.7.2+ in wxMediaCtrl (Sebastian Dröge).
- Add wxStandardPaths::SetFileLayout(FileLayout_XDG) (Martin Koegler).


3.1.0: (released 2016-02-29)
----------------------------

- Many improvements for high DPI monitors support, notably XRC now interprets
  all pixel values as being in resolution-independent pixels.

- wxQt branch implementing Qt5-based port of wxWidgets API was merged into
  the trunk (Mariano Reingart, Google Summer of Code project).

- Added wxNativeWindow allowing to embed native widgets in wxWidgets programs.

- Improve wxGLCanvas to be more type safe and better support modern OpenGL.

All:

- Add UTF-8 and ZIP 64 support to wxZip{Input,Output}Stream (Tobias Taschner).
- Upgrade libpng to 1.6.21 fixing several security bugs (Paul Kulchenko).
- Support gstreamer 0.10 and 1.0 in wxMediaCtrl (Sebastian Dröge).
- Fix handling of Unicode file names in wxFileSystem::FindFirst().
- Add wxStandardPaths::GetUserDir() (Tobias Taschner).
- Allow calling wxItemContainer::Add() and similar with std::vector<> argument.
- Add "%z" support to printf()-like functions like wxString::Format() (RIVDSL).
- Add DOCTYPE support to wxXmlDocument (Nick Matthews).
- Add wxPowerResourceBlocker (Tobias Taschner).
- Add wxApp::StoreCurrentException() and RethrowStoredException() and implement
  their functionality by default when using C++11 compiler.
- Allow iterating over wxCmdLineParser arguments in order (Armel Asselin).
- Add wxScopedArray ctor taking the number of elements to allocate.
- Add wxDynamicLibrary::GetModuleFromAddress() (Luca Bacci).
- Implement wxThread::SetPriority() for pthreads (Luca Bacci).
- Add wxInt64 support to wxText{Input,Output}Stream (Alexander Bezzubikov).
- Define wxOVERRIDE as override for supporting compilers (Thomas Goyne).
- Allow specifying custom comparator for wxSortedArrayString (Catalin Raceanu).
- Add wxDateTime::GetWeekBasedYear().
- Specialize std::hash<> for wxString when using C++11.
- Allow recursive calls to wxYield().
- Add wxART_FULL_SCREEN standard bitmap (Igor Korot).
- Fix wxStringTokenizer copy ctor and assignment operator.
- Added wxASSERT_MSG_AT() and wxFAIL_MSG_AT() macros.
- Accept replacement character in wxString::ToAscii() (Stefano D. Mtangoo).

Unix:

- Fix bug in wxExecute() if child exited too quickly (Kevin B. McCarty).
- Add --disable-sys-libs configure option.
- Add --enable-cxx11 configure option.

All (GUI):

- Allow requesting modern (3.x+) OpenGL version in wxGLCanvas (Fabio Arnold).
- Add wxActivityIndicator.
- Add wxWindow::FromDIP() for simpler high DPI support.
- Allow initially hiding sizer items in XRC (Bogdan Iordanescu).
- Allow customizing window shown by wxBusyInfo.
- Add wxAddRemoveCtrl.
- Add wxAppProgressIndicator for MSW (Chaobin Zhang) and OS X (Tobias Taschner).
- Add support for using checkboxes to wxListCtrl (Maarten Bent).
- Add wxListBox::GetTopItem() and GetCountPerPage() (Andreas Falkenhahn).
- Add wxTextEntry::ForceUpper().
- Add wxTextEntryDialog::ForceUpper().
- Add wxEVT_MAGNIFY mouse event (Joost Nieuwenhuijse).
- Add wxProcess::Activate().
- Fix setting colours of labels in wxSlider.
- Fix setting background colour of wxRadioBox buttons.
- Add wxTopLevelWindow::Enable{Maximize,Minimize}Button() (John Roberts).
- Make results of wxDC::DrawEllipticArc() consistent across all platforms.
- XRC handler for wxAuiToolBar added (Kinaou Hervé, David Hart).
- Improve wxLIST_AUTOSIZE_XXX support in generic wxListCtrl (Kinaou Hervé).
- Support "color", "size" and "font" CSS for fonts in wxHTML (Kinaou Hervé).
- Fix one pixel gaps between consecutive underlined words in wxHTML.
- Add wxCursor::GetHotSpot().
- Add wxFD_NO_FOLLOW style for wxFileDialog (Luca Bacci).
- Add support for embedding bitmaps in generated SVG in wxSVGFileDC (iwbnwif).
- Add support for sorting wxDataViewCtrl by multiple columns (Trigve).
- Allow dropping data on wxDataViewCtrl background (Laurent Poujoulat).
- Add wxRendererNative::DrawGauge() (Tobias Taschner).
- Add wxRendererNative::DrawItemText() (Tobias Taschner).
- Add wxHtmlWindow::SetDefaultHTMLCursor() (Jeff A. Marr).
- Add default ctor and Create() to wxContextHelpButton (Hanmac).
- Send events when toggling wxPropertyGrid nodes from keyboard (Armel Asselin).
- Fix wxRearrangeList::Check() which asserted and misbehaved before.
- Optimized wxRTC insertion and deletion when floating objects are present.
- Added on-demand image loading option to wxRTC.
- Add wxFont::GetBaseFont() (Melroy Tellis).
- Update Scintilla to v3.5.5 (Christian Walther, Heyoupeng, ARATA Mizuki).
- Add wxStyledTextCtrl copy/paste text events (Christian Walther).
- Improve RTL support in wxStyledTextCtrl (Zane U. Ji).
- Add support for loading old V1 BMP files to wxImage (Artur Wieczorek).
- Improve auto sizing of wrapped cells in wxGrid (iwbnwif).
- Fix handling of rectangular selections in wxStyledTextCtrl (roberto).
- Fix characters outside of the BMP in wxStyledTextCtrl (Thomas Goyne).
- Allow access to the currently shown wxInfoBar buttons (Hanmac).
- Add wxGenericListCtrl::EndEditLabel() (Tim Kosse).
- Use native renderer for drawing check boxes in wxPropertyGrid (Eran Ifrah).
- Fix drawing custom colours of wxEnumProperty items in wxPG (Artur Wieczorek).
- Add wxBitmap ctor from wxCursor.
- Always disable wxWizard "Back" button on the starting page (pmgrace30).
- Add wxUIActionSimulator::Select().
- Add wxOwnerDrawnComboBox::Is{List,Text}Empty() methods.
- Fix creating/removing mode buttons in wxPG manager (Artur Wieczorek).
- Harmonize wxMenuEvent handling between all major ports.
- Fix wxPGChoices copy ctor (Snoits).
- Show how to handle files on command line in docview sample (Neil Mayhew).
- Improve wxFileCtrl::SetFilename() and SetPath() (Kevin B. McCarty).
- Fix a crash when using animated GIFs in wxHtmlListBox.
- Use platform-specific stock icons for wxEditableListBox buttons.
- Add support for the events from multimedia keys (Jens Göpfert).
- Allow suppressing warnings from wxImage::LoadFile().
- Allow customizing wxRibbon highlight colours (wxBen).
- Enable selecting opacity in generic wxColourPicker.
- Extend the support for font weights to a bigger range.
- Add support for fractional font sizes.

wxGTK:

- Support building wxGTK3 under Windows (Kolya Kosenko).
- Implement support for non-wxTextCtrl custom editors in wxDataViewCtrl.
- Fix vertical cell alignment in wxDataViewCtrl.
- Fix clearing of wxComboBox with wxCB_READONLY (Chuddah).
- Fix setting "pressed" bitmap for wxToggleButton (Kevin B. McCarty).
- Fix GTK+ warnings for wxFileDialog with wxFD_MULTIPLE style.
- Don't generate wxEVT_LIST_ITEM_RIGHT_CLICK outside of item area (Igor Korot).
- Implement wxDataViewCtrl::SetIndent().

wxMSW:

- Make default wxSizer border DPI-aware.
- Implement native appearance for wxAUI tabs and toolbars (Tobias Taschner).
- Show more modern-looking wxNotificationMessages under 8+ (Tobias Taschner).
- Improve wxMimeTypesManager open command detection (Eric Jensen).
- Make wxFILTER_INCLUDE_LIST in wxTextValidator actually usable.
- Fix handling crashes in wxEVT_PAINT event handlers.
- Fix wxStackWalker to work with Unicode identifiers (Suzumizaki-kimitaka).
- Fix appearance of toggled wxToggleButtons with bitmap (tm).
- Fix setting menu item bitmaps after appending them (Artur Wieczorek).
- Fix setting label of submenu items (Artur Wieczorek).
- Fix handling of selected images in wxBitmapButton (Artur Wieczorek).
- Fix loading of bitmap with non-pre-multiplied alpha (Artur Wieczorek).
- Support multiline strings in wxDC::DrawRotatedText() (Artur Wieczorek).
- Fix stretchable spacers in vertical toolbars (Artur Wieczorek).
- Implement setting foreground colour for wxRadioButton (Artur Wieczorek).
- Add font colour support to wxFontPickerCtrl (Pana Alexandru).
- Add wxEnhMetaFile::Detach() (Luca Bacci).
- Add support for saving 256*256 32bpp ICOs in PNG format (Artur Wieczorek).
- Keep menu item icon after removing and adding it back (Artur Wieczorek).
- Add wxThread::MSWGetHandle() (troelsk).
- Allow using sizers for laying out wxMDIClientWindow (Artur Wieczorek).
- Fix updating wxSlider background when its parent background changes.
- Implement wxListBox::EnsureVisible() (RIVDSL).
- Drastically improve efficiency of selecting all items in wxDataViewCtrl.
- Fix spurious selection events generation in wxDataViewCtrl.
- Fix wxMenuEvent::GetMenu() for wxEVT_MENU_{OPEN,CLOSE} in MDI frames.
- Fix updating wxSpinCtrlDouble tooltip text (Laurent Poujoulat).
- Fix appearance of checked disabled wxToolBar tools with custom images.
- Fix reading of not NUL-terminated strings using wxRegKey (Steffen Olszewski).
- Fix unexpected change in MDI children order after showing a file dialog.
- Don't send events for already selected radio popup menu items (Kinaou Hervé).
- wxListCtrl::GetItemCount() in wxEVT_LIST_INSERT_ITEM is no longer off by 1.
- Don't send bogus root selection events when clicking wxTreeCtrl (sbrowne).
- Avoid bogus assert after calling wxDatePickerCtrl::SetRange().
- Add solution file for building with MSVS 2014 (Peter Tissen).
- Correct wxGetOsDescription() for Windows 10 (Tobias Taschner).
- Make wxListCtrl &c appearance more native on modern systems (Tobias Taschner).
- Don't send wxActivateEvent for minimized windows (bzcdr).
- Return correct OS version under Windows 8.1 and later.
- Fix crash in wxD2DContext when using non-MSVC compiler (iwbnwif).
- Notify shell about the changes done by wxMimeTypesManager (Maarten Bent).
- Fix wxPrintf() and friends when using MinGW with ANSI stdio option.
- Fix strike-through support in wxFont with GDI+ (David Vanderson).
- Fix UTF-32 conversion for non-BMP characters (ARATA Mizuki).
- Use correct parent for the native modal dialogs (Andreas Falkenhahn).
- Fix layout of wxSlider with wxSL_VALUE_LABEL only (gafatoa).
- Fix flicker when resizing columns of report-mode wxListCtrl.
- Implement wxTreeCtrl::SetDoubleBuffered() (Steve Browne).

wxOSX/Cocoa:

- Make wxiOS (iPhone) port build and minimally work again (Tobias Taschner).
- Use more efficient FSEvents (10.7+) in wxFileSystemWatcher (Roberto Perpuly).
- Implement wxWindow::Disable() for non-native controls too (Steve Browne).
- Implement wxTopLevelWindow::EnableCloseButton() (John Roberts).
- Fix wxEVT_CHAR for non-BMP Unicode characters (ARATA Mizuki).
- Add wxTE_AUTO_URL support to wxTextCtrl (Igor Korot).
- Add support for wxEVT_COMBOBOX_{DROPDOWN, CLOSEUP} events (Igor Korot).
- Implement strike-through support in wxFont (Igor Korot, Daniel Kulp).
- Provide native implementation of wxStandardPaths (Tobias Taschner).
- Add wxTE_{RIGHT,CENTER} support for multiline wxTextCtrl (Andreas Falkenhahn).
- Don't leave wxSlider labels shown when the slider itself is hidden.
- Don't generate wxEVT_TEXT_ENTER for controls without wxTE_PROCESS_ENTER.
- Implement wxToolTip::SetDelay() (David Vanderson).
- Correct positioning of popup menus relative to mouse pointer (John Roberts).
- Add support for right-aligned checkboxes (John Roberts).