Announcing wxWidgets 3.2.11 release

[Vadim Zeitlin]

July 7, 2026 -- The wxWidgets team is pleased to announce the latest stable
release of our open source framework for the development of native
cross-platform applications in C++.

wxWidgets 3.2.11 is part of the API and ABI-stable 3.2.x release series and is
now available from

https://www.wxwidgets.org/downloads/

and

https://github.com/wxWidgets/wxWidgets/releases/v3.2.11


This release contains a big number of important fixes, including for potential
security problems, and upgrading to it is strongly recommended for all
wxWidgets users.

The following bugs were fixed:

- Fix wxCondition and wxSemaphore::WaitTimeout() after 2038 under Unix (#26466).
- Fix buffer overflow in wxGethostby{addr,name}_r() (#26528).
- Fix buffer overflow in wxTarInputStream (#26530).
- Fix out-of-bounds read in wxFileType::ExpandCommand() (#26531).
- Fix buffer overflow in wxVsnprintf() (#26522).
- Fix out-of-bounds read in wxRegEx::Replace() (#26541).
- Fix out-of-bounds read in wxUString (#26548).
- Fix wxDateTime::Format() handling of invalid format (#26543).
- Fix buffer overflow in wxGethostbyxxx_r() on some systems (#26553).
- Fix wxCaret position in scrolled windows (#26282).
- Correct delta-RLE bitmap background colour (#23599).
- Correct loading of `BI_BITFIELDS` bitmaps (#23601).
- Fix loading 32bpp BMP files without valid alpha (#24219).
- Fix buffer overwrite when loading malformed BMPs with invalid RLE data.
- Avoid out-of-bounds palette read in 8bpp BMP decoder (#26438).
- Avoid out-of-bounds palette write in wxIFFDecoder (#26440).
- Avoid out-of-bounds read in wxPCXHandler (#26441).
- Avoid out-of-bounds read in wxXPMDecoder (#26442).
- Fix reading ANI images with invalid frame count (#26492).
- Avoid out-of-bounds write for invalid BMP RLE runs (#26496).
- Fix out-of-bounds read when loading invalid 4bpp BMPs (#26511).
- Avoid out-of-bounds write on bad BMHD chunk in wxIFFDecoder (#26497).
- Fix write overflow in TGA files with invalid colour map (#26493).
- Fix read overflow in wxXPMDecoder on unterminated quote (#26499).
- Fix read overflow in wxXPMDecoder on invalid width (#26519).
- Reject more invalid GIFs and do it without leaking memory (#26501).
- Fix buffer overflows decoding invalid GIFs (#26521, #26524).
- Fix multiple buffer overflows in wxIFFDecoder (#26505, #26518).
- Fix multiple buffer overflows in wxSound (#26506, #26525).
- Fix reading too short extra field in ZIP64 files (#26507).
- Fix out-of-bounds table read in wxMBConvUTF7::ToWChar(#26517).
- Fix buffer overflow reading corrupted message catalogs (#26513).
- Fix buffer overflow for too big tables in wxHTML (#26554).
- Add wxGrid::GetFrozen{Row,Col}LabelWindow() (#26617).
- Fix wxPropertyGrid macros with wxNO_IMPLICIT_WXSTRING_ENCODING (#26651).
- Fix copy/paste in wxGTK when a clipboard manager is running (#26265).
- Fix crash with EGL-based wxGLCanvas in wxNotebook (#26340).
- Fix possible wxTextCtrl crash with GSpell attached (#26464).
- Fix drawing of very large bitmaps in wxGTK (#25656).
- Fix memory leak in wxDataViewChoiceRenderer.
- Fix resource leak when using EGL with X11 (#26341).
- Fix showing title bar under Wayland with wxBORDER_NONE (#26357).
- Remove maximum text length limitation in "picker" controls in wxGTK (#26314).
- Fix appearance of dashed lines drawn by wxDC::DrawLine() in wxGTK (#26449).
- Fix non-resizable TLW size when setting client size in wxGTK (#26480).
- Fix wxBufferedPaintDC when using RTL layout in wxMSW (#26266).
- Fix crash after destroying wxFileSystemWatcher in wxOSX (#26658).
- Fix possible crash in wxFont::SetNativeFontInfo() in wxOSX (#26411).

Please see the full change log for more details:

https://raw.githubusercontent.com/wxWidgets/wxWidgets/v3.2.11/docs/changes.txt

This release is API and ABI-compatible with the previous 3.2.x, meaning that
the existing applications don't even need to be rebuilt to profit from all the
fixes above if they use shared/dynamic libraries. And if they do need to be
recompiled, this can be done without any changes to the code.

We hope that you will enjoy using the new release!

Vadim Zeitlin, on behalf of wxWidgets development team.