4.2 version is ready. The tarball is available for download.
The changelog is:
*  menu image is too small
*  ERROR used before int declaration breaks build
*  -isystem needs space?
*  makefile fails if CFLAGS set on command line
*  DnD in launchbar fails if url has a space
* fixed typos in error messages
* New code for panel's buttons. Affected plugins are wincmd, launchbar
* Depreceted option menu widget was replaced by combo box
* sys tray is packed into shadowed frame
* pad is inserted betwean tasks in a taskbar
* clock was made flat
* spacing around a plugin was is configurable now
You can try it and if you find a bug plz submit a bug report .