Another update of Toolbar Buttons has been released. It fixed a number of minor issues that had been reported in the previous release. There where no major changes though.
The think it should be the last one in the 0.5.0 branch of Toolbar Buttons. The next release should be 0.5.5 unless any unexpected bugs are found. The plans for 0.5.5 is to start to change the icons and add the next 15 or so wanted buttons.