2017-12-26 06:36:07 -05:00
# -*- rdoc -*-
= NEWS for Ruby 2.6.0
This document is a list of user visible feature changes made between
releases except for bug fixes.
Note that each entry is kept so brief that no reason behind or
reference information is supplied with. For a full list of changes
with all sufficient information, see the ChangeLog file or Redmine
(e.g. <tt>https://bugs.ruby-lang.org/issues/$FEATURE_OR_BUG_NUMBER</tt>)
== Changes since the 2.5.0 release
2017-12-28 15:09:24 -05:00
=== Language changes
* $SAFE is a process global state and we can set 0 again. [Feature #14250]
2018-01-24 01:32:46 -05:00
* refinements take place at block passing. [Feature #14223]
2017-12-28 15:09:24 -05:00
=== Core classes updates (outstanding ones only)
2018-02-21 12:06:23 -05:00
* Binding
* added Binding#source_location. [Feature #14230]
This method returns the source location of binding, a 2-element array of `__FILE__` and `__LINE__`. Traditionally, the same information could be retrieved by `eval("[__FILE__, __LINE__]", binding)`, but we are planning to change this behavior so that `Kernel#eval` ignores binding's source location [Bug #4352]. So, users should use this newly-introduced method instead of `Kernel#eval`.
2018-01-24 02:15:55 -05:00
* Dir
* New methods:
* added Dir#each_child and Dir#children instance methods. [Feature #13969]
2018-01-24 09:31:40 -05:00
* Kernel
* Kernel.#system takes :exception option to raise an exception on failure. [Feature #14386]
2018-02-21 22:33:42 -05:00
* KeyError
* KeyError#initialize accepts :receiver and :key options to set receiver and key in Ruby code. [Feature #14313]
* NameError
* NameError#initialize accepts :receiver option to set receiver in Ruby code. [Feature #14313]
* NoMethodError
* NoMethodError#initialize accepts :receiver option to set receiver in Ruby code. [Feature #14313]
2017-12-28 15:09:24 -05:00
* Proc
* Proc#call doesn't change $SAFE any more. [Feature #14250]
2018-02-20 04:26:38 -05:00
* Random
* New methods:
* added Random.bytes. [Feature #4938]
2017-12-28 15:09:24 -05:00
=== Stdlib updates (outstanding ones only)
2018-01-11 14:37:25 -05:00
* Matrix
* New method:
* Matrix#antisymmetric?
2017-12-28 15:09:24 -05:00
=== Compatibility issues (excluding feature bug fixes)
=== Stdlib compatibility issues (excluding feature bug fixes)
=== C API updates
=== Supported platform changes
=== Implementation improvements
2018-02-21 22:14:39 -05:00
* Speedup `Proc#call` because we don't need to care about `$SAFE` any more.
2018-02-21 03:14:51 -05:00
[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.
2018-02-11 00:32:17 -05:00
* `--jit` option to enable JIT compiler is added. [Feature #14235] [experimental]
2018-02-16 03:51:23 -05:00
* VM generator script renewal; makes the generated VM more optimized. [GH-1779]
2017-12-28 15:09:24 -05:00
=== Miscellaneous changes