• Ryan Scott's avatar
    Describe symptoms of (and the cure for) #12768 in 8.0.2 release notes · ead83db8
    Ryan Scott authored
    GHC 8.0.2 introduced a bugfix involving GeneralizedNewtypeDeriving in
    96d45145. This made typechecking of
    GND-produced code a bit stricter, and an unfortunate side effect of this was
    that there were a couple of corner-case programs that stopped compiling
    when transitioning from GHC 8.0.1 to 8.0.2.
    Since the number of affected programs seems quite small, and since the fix
    is so straightforward, we opt to simply note this discrepancy in the 8.0.2
    release notes.
    Resolves #12768.
8.0.2-notes.rst 4.08 KB