xmonad.hs:35:75: warning: [-Wdeprecations]
    In the use of ‘defaultConfig’
    (imported from XMonad, but defined in XMonad.Config):
    Deprecated: "Use def (from Data.Default, and re-exported by XMonad and XMonad.Config) instead."

xmonad.hs:51:32: warning: [-Wdeprecations]
    In the use of ‘defaultConfig’
    (imported from XMonad, but defined in XMonad.Config):
    Deprecated: "Use def (from Data.Default, and re-exported by XMonad and XMonad.Config) instead."

xmonad.hs:58:32: warning: [-Wdeprecations]
    In the use of ‘defaultConfig’
    (imported from XMonad, but defined in XMonad.Config):
    Deprecated: "Use def (from Data.Default, and re-exported by XMonad and XMonad.Config) instead."

xmonad.hs:85:34: warning: [-Wdeprecations]
    In the use of ‘defaultPP’ (imported from XMonad.Hooks.DynamicLog):
    Deprecated: "Use def (from Data.Default, and re-exported by XMonad.Hooks.DynamicLog) instead."