@@ -87,6 +87,11 @@ Will error without UndecidableInstances:
...
@@ -87,6 +87,11 @@ Will error without UndecidableInstances:
-}instanceF a =>C[[a]]
-}instanceF a =>C[[a]]
```
```
### DPH is gone
Data Parallel Haskell and GHC's automatic vectorization support, which have been bitrotting for many years, have finally been removed. One particularly user-facing change related to this is that the `-Odph` flag is now gone, so GHC will simply error if it is passed `-Odph` as a flag. (Note that `-Odph` was simply a synonym for `-O2 -fmax-simplifier-iterations=20 -fsimplifier-phases=3`.)