* The `free-algebras`, `mono-traversable`, `mustache`, `pandoc`, and
  `yesod-core` patches have been migrated to the latest Hackage
  versions.
* The `diagrams-svg`, `file-embed`, `free`, and `haskell-src-meta`
  patches have been removed, as their latest Hackage versions support
  GHC 8.8 through HEAD.