It used to be very clearly based on history, so every time I restarted my phone I'd get the classic "duck" correction. Now I couldn't tell you what it's doing,

It used to be very clearly based on history, so every time I restarted my phone I'd get the classic "duck" correction. Now I couldn't tell you what it's doing, but it doesn't appear to be using history. For instance, the same technical terms get autocorrected again and again.