A new version of ProEXR is available, adding a key feature that has been requested by users. Whereas the Photoshop plug-in already had a mechanism for effecting the way alpha channels were handled, we've now bumped the feature out of Easter Egg land and into legitimacy via a shiny new dialog.
The dialog does not appear by default. As before, you access the feature by holding down the option (Mac) or alt (Win) key. But now the settings are made clear as day and you can change the defaults to whatever you like. You can even make the dialog appear every time if you crave more modal UI interaction than you're currently getting.
ProEXR 1.3 also includes a variety of other small fixes. Needless to say, we recommend everyone switch to it (without any upgrade fee, of course). Enjoy!