The column widths in the upper right table of commits won't keep the overall widths I set for them. While the application is maximized Sourcetree keeps resizing them downward to only use half of the available space obscuring part of the time stamp and most of the description in the process.
It might be a coincidence, but the forced resizings are leaving the rightmost edge of the last column at 1264 pixels, which with 16 more for the vertical scrollbar suggests that it's resizing on the assumption that it's on an elderly 1280x#### screen.
I'm using v 1.9.6.1 for Windows.