wxWidgets 3.1.2 Release Notes
=============================

Welcome to the latest development release of wxWidgets, a free and open source
cross-platform C++ framework for writing advanced GUI applications using native
controls.

wxWidgets allows you to write native-looking GUI applications for all the major
desktop platforms and also helps with abstracting the differences in the non-GUI
aspects between them. It is free for the use in both open source and commercial
applications, comes with the full, easy to read and modify, source and extensive
documentation and a collection of more than a hundred examples. You can learn
more about wxWidgets at:

* https://www.wxwidgets.org/

Documentation is available online at:

* https://docs.wxwidgets.org/3.1.2/

wxWidgets sources and binaries for the selected platforms are available for
download from:

* https://github.com/wxWidgets/wxWidgets/releases/tag/v3.1.2/


Changes since 3.1.1
-------------------

There have been more than 1200 commits from 75 contributors (41 with multiple
contributions) since 3.1.1 release. This release primarily contains bug fixes
(closing more than 100 bugs from wxTrac) and incremental improvements in
preparation for the next stable 3.2.0 release, however there is a usual lot of
new features as well, including:

- Initial support for macOS 10.14 and its dark mode.
- Support for non-integer font sizes and arbitrary font weights.
- New wxLZMA{Input,Output}Stream classes.
- Add wxDataViewToggleRenderer::ShowAsRadio(), wxDisplay::GetPPI(),
  wxGrid::SetCornerLabelValue(), wxHtmlEasyPrinting::SetPromptMode(),
  wxJoystickEvent::GetButtonOrdinal(), wxToolbook::EnablePage().

Some of the other improvements:

- There were again many improvements to the (still experimental) wxQt port.
- Fix several bugs related to focus handling and TAB navigation in wxGTK.
- Make it possible to control pagination in wxHTML more precisely.
- Fix several problems with high-DPI displays.
- wxOSX now uses native NSImage/UIImage representation for wxBitmap.
- Support strike-through font attribute in XRC and wxDataViewCtrl markup too.
- Support more than 4 buttons in wxJoystick.
- Add wxwidgets.props property sheet file for MSVS users.

Please refer to the detailed change log for the full list of changes:

https://raw.githubusercontent.com/wxWidgets/wxWidgets/v3.1.2/docs/changes.txt


Notice that this release is almost completely compatible with 3.1.1 at the API
level, so upgrading to it if you're already using wxWidgets 3 should be
straightforward.


Changes since 3.0
-----------------

Compared to the stable 3.0.x series, this version brings too many
improvements and even more bug fixes to list them all, but here is the
maximally condensed summary:

- Build system improvements: support for new compilers (MSVS 2017, g++ 8) and
  OS versions as well as an entirely new CMake build system.
- New features: support for mouse gesture events (GSoC 2017 project);
  fractional pen widths in wxGraphicsContext; arbitrary label windows in
  wxStaticBox; markup in wxDataViewCtrl items text; better support for high DPI
  monitors; support for ZIP 64 files; much improved accessibility support under
  MSW.
- New classes: wxActivityIndicator, wxAddRemoveCtrl,
  wxAppProgressIndicator, wxNativeWindow, wxPowerResourceBlocker,
  wxSecretStore.
- And methods: wxDateTime::GetWeekBasedYear(), wxListBox::GetTopItem(),
  wxProcess::Activate(), wxTextEntry::ForceUpper(), several ones in
  wxRendererNative, wxStandardPaths::GetUserDir(), wxUIActionSimulator
  ::Select() and many others.
- Significant improvements to: wxBusyInfo, wxDataViewCtrl,
  wxNotificationMessage, wxStaticBox, wxStyledTextCtrl.
- Latest versions of all bundled 3rd party libraries, including all the
  security fixed and support for WebKit 2 and GStreamer 1.7 under Unix.
- Revamped OpenGL support better suited to modern OpenGL (3.2+).
- Further C++11 support improvements.
- A lot of bug fixes, especially in wxGTK3 and wxOSX/Cocoa ports.
- New experimental wxQt port.



Platforms Supported
-------------------

This version of wxWidgets supports the following primary platforms:

* Windows XP, Vista, 7, 8 and 10 (32/64 bits).
* Most Unix variants using the GTK+ toolkit (version 2.6 or newer)
* OS X (10.7 or newer) using Cocoa (32/64 bits)

There is some support for the following platforms:

* Most Unix variants with X11
* Most Unix variants with Motif/Lesstif
* Most Unix variants with GTK+ 1.2
* Most Unix variants with Qt 5 or newer (experimental)

Most popular C++ compilers are supported; see the install.txt file for each
platform (following the links from docs/index.htm).


Files
-----

wxWidgets is distributed in source form in several archive formats. ZIP and 7z
archives are for Microsoft Windows users and contain the files with DOS/Windows
line endings while the compressed tar archives are for Unix systems (including
OS X) and contain the files with Unix line endings. Please notice that some
Windows tools still don't accept files with Unix line endings and that compiling
sources with DOS line endings under Unix will fail, so please choose the correct
file for your system.

In addition to the sources, documentation in HTML, CHM and HTB (wxWidgets help
viewer) formats is provided as well as an installer for Microsoft Windows.
Notice that you will still need to compile wxWidgets even when using the
installer.

We also supply binaries of wxMSW libraries built with several versions of
Microsoft Visual C++ and GNU g++ compiler for this release.


Installation
------------

Unless you have downloaded the binaries for your compiler, you will need to
build wxWidgets before you can test out the samples or write your own
applications. For installation information, please see the install.txt file in
the docs subdirectory appropriate for the platform you use.


Licence
-------

For licensing information, please see the files:

* docs/preamble.txt
* docs/licence.txt
* docs/licendoc.txt
* docs/gpl.txt
* docs/lgpl.txt
* docs/xserver.txt

Although this may seem complex, it is there to allow authors of proprietary,
commercial applications to use wxWidgets in addition to those writing GPL'ed
applications. In summary, the licence is LGPL plus a clause allowing
unrestricted distribution of application binaries. To answer a FAQ, you don't
have to distribute any source if you wish to write commercial applications using
wxWidgets.

However, if you distribute wxGTK, wxQt or wxMotif (with Lesstif) version of your
application, don't forget that it is linked against GTK+, Qt or Lesstif, which
are covered by LGPL *without* exception notice and so is bound by its
requirements.

If you use TIFF image handler, please see src/tiff/COPYRIGHT for libtiff licence
details.

If you use JPEG image handler, documentation for your program should contain
following sentence: "This software is based in part on the work of the
Independent JPEG Group". See src/jpeg/README for details.

If you use wxRegEx class on a system without native regular expressions support
(i.e. MS Windows), see src/regex/COPYRIGHT file for Henry Spencer's regular
expression library copyright.

If you use wxXML classes or XRC, see src/expat/COPYING for licence details.


Reporting Bugs
--------------

The wxWidgets bug tracker can be found here:

* https://trac.wxwidgets.org/newticket

Please use the search function of our Trac installation to find any possibly
relevant bugs before reporting new ones. Also please notice that often trying to
correct the bug yourself is the quickest way to fix it. Even if you fail to do
it, you may discover valuable information allowing us to fix it while doing it.
We also give much higher priority to bug reports with patches fixing the
problems so this ensures that your report will be addressed sooner.


Further Information
-------------------

If you are looking for community support, you can get it from

* Mailing Lists: https://www.wxwidgets.org/support/mailing-lists/
* Discussion Forums: https://forums.wxwidgets.org/
* #wxwidgets IRC Channel: https://www.wxwidgets.org/support/irc/
* Stack Overflow (tag your questions with "wxwidgets"):
  https://stackoverflow.com/questions/tagged/wxwidgets

Commercial support is also available, please see
https://www.wxwidgets.org/support/commercial/

Finally, keep in mind that wxWidgets is an open source project collaboratively
developed by its users and your contributions to it are always welcome!


Have fun!

The wxWidgets Team, December 2018
