Connecting unused pins

For years, the default for unused pins was "As output driving ground", which was a bad choice for obvious reasons. Starting with Stratix III and Cyclone III, the default is "As input tri-stated with weak pull-up".

I almost killed a few development boards by starting a new project and forgetting to change the default. In fact, I suspect there are a few seldom-used peripherals that died a horrible electrically conflicted death at some point in the last few years.