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add NEWS entries about [Feature #14318] and [Feature #14330].

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62514 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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ko1 2018-02-21 08:14:51 +00:00
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@ -58,6 +58,15 @@ with all sufficient information, see the ChangeLog file or Redmine
=== Implementation improvements
* Speedup `Proc#call` because we dont' need to care about `$SAFE` any more.
[Feature #14318]
With `lc_fizzbuzz` benchmark which uses so many `Proc#call` we can measure
x1.4 improvements [Bug #10212].
* Speedup `block.call` where `block` is passed block parameter. [Feature #14330]
Ruby 2.5 improves block passing performance. [Feature #14045]
Additionally, Ruby 2.6 improves the performance of passed block calling.
* `--jit` option to enable JIT compiler is added. [Feature #14235] [experimental]
* VM generator script renewal; makes the generated VM more optimized. [GH-1779]