Merlin 3.1.0

backend

• new "polarity search" feature: provides a Hoogle-like type-based search for libraries that are in merlin's scope. See https://github.com/ocaml/merlin/blob/master/doc/features.md#polarity-search
• new "open refactoring" feature: helps cleaning the code in the scope of an open statement. See https://github.com/ocaml/merlin/blob/master/doc/features.md#open-refactoring
• spell-checking: a simple spell-checker has been added to suggest corrections when nothing can be directly completed.
• type-driven record completion: merlin will now make use of type information from the context for narrowing and refining completion candidates.
• support for #require directive in a source file, and will treat it as a package use
• Add support for OCaml 4.07
• locate: various minor bugfixes, as well as the following general improvements:
  • improved context detection
  • better tracking of namespaces
  • fixed support for local bindings
  • fixed support of disambiguated record fields and variant constructors
  • improved support for functors: merlin will now jump through functor application to the functor definitions and in some cases go back to the argument that was given (if it is simply reexported).
• backport fixes of OCaml 4.06.1 to the 4.06 backend
• various minor bugfixes

editor modes

• emacs
  • proper handling of multibyte strings (by @Chris00)
  • bind "q" to close type buffer (by @MiloDavis)
  • make goto-point encoding independent
  • add reason-mode to the guessed favorite mode list (by @Khady)
  • sped up some tight loops (by @rgrinberg)
  • add support for x-ref backend (by @rgrinberg)
• vim
  • fix support for Neomake (by @bobbypriambodo and @statianzo)
  • fix encoding issues in filepaths (by @Thelyria)
  • fix handling of enclosing-type cache (by @ELLIOTTCABLE)
  • add to prevent flashing when highlighting an enclosing (by @bluddy)