I've been looking at these files too and have another data point for unilm.bundle being the new text prediction. If you take an iOS simulator, turn off "Settin

I've been looking at these files too and have another data point for unilm.bundle being the new text prediction. If you take an iOS simulator, turn off "Settings > General > Keyboard > Predictive", reboot it and then watch the console logs as you turn that switch back on, you'll see the "kbd" process load the models out of that bundle.