2.8.6
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All:

— Fixed another bug in wxFileConfig when deleting entries (Axel Gembe)
— Added Portuguese translation (Antonio Cardoso Martins)


All (GUI):

— Added an optimization to UI updates on idle, by only updating when the window
is shown.
— Multiple centre panes in wxAUI can now be resized.
— Add support for reading alpha data from TIFF images.

wxMSW:

— Fixed a bug with a spurious border appearing on wxStatusBar under Windows XP/Vista.

wxGTK:

— Fixed wxSpinCtrl problem not reporting the correct value
after calling SetValue().
— Fixed problem with key events sometimes being sent to
parent window. This also solves a problem with being able
to change the selection of a wxListCtrl while editing a
label.
— Correct context menu event coming from wxListCtrl to
have the right ID (not that from the client window).

wxMac:

— Fixed a crash in wxToolBar when adding tools with non-standard sizes.