As usual while waiting for the next release - don't forget to check the nightly builds in the forum.
C:\wxWidgets-3.2.1\lib\gcc_dll\mswuC:\wxWidgets-3.2.1\lib\gcc_dll\mswud
Actually, all the lib files in that directory are 32s. There is no libwxmsw32u.a or libwxmsw32ud.a but plenty of others for ribbon, aui, xrc, webview, html, core ...etc. So should I download the non-debug version?