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Merlin 3.0.0

The major change is a new protocol that moves process management inside Merlin codebase, saving a lot of pain in Emacs and Vim. There are not much new user facing features.

Windows support is not yet available.

In editor configuration is now done with merlin-flags, merlin-extensions and merlin-use in Emacs and :MerlinFlags, :MerlinExtensions and :MerlinPackages in Vim. In previous versions, enabled extensions, flags and packages were retained while now only the last command is remembered.

"M-x merlin-use a", "M-x merlin-use b" should be replaced by "M-x merlin-use a,b". ":MerlinUse a", ":MerlinUse b" should be replaced by ":MerlinUse a b".

The old protocol is still supported, so existing editor modes should not be affected (tested with Atom, Visual Studio and Sublime-text).

Other main changes:

  • Support for OCaml 4.05 was added
  • Merlin uses a new implementation of short-path by Leo White which addresses performance problems
  • Merlin now works with the upstream version of Menhir
  • numerous cleanup and refactoring to decrease the amount of changes to upstream typechecker
  • emacs-imenu feature was contributed by tddsg. It is similar the "outline" feature in vim for navigating in a buffer.

Thanks to the many contributors (Jochen Bartl, tddsg, Ximin Luo, Jason Staten, Leo White, Leandro Ostera, Jacob Bass, Xavier Guérin, Yotam Barnoy, Jacques Pascal Deplaix, David Allsopp, ...).

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