http://www.wxwidgets.org/downloads/

wxWdigets 2.8.0 has been released. wxWidgets is a free C++ framework that facilitates cross platform software development, including GUIs, threads, sockets, database, file system access, etc. 
 
 
The wxWidgets team is pleased to announce a major new release. Compared with the last stable series (2.6), 2.8.0 adds wxAUI (an advanced user interface library for docking and other functionality), wxRichTextCtrl, wxComboCtrl, wxOwnerDrawnComboBox, wxTreebook, various picker controls such as wxColourPickerCtrl, wxHyperlinkCtrl, partial right-to-left language support, support for Core Graphics on Mac OS X, tar archive support, and more. Get wxWidgets from http://www.wxwidgets.org/downloads/.