2018-10-17 07:35:28 -04:00
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# -*- rdoc -*-
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2017-12-26 06:36:07 -05:00
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2018-12-25 10:58:49 -05:00
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= NEWS for Ruby 2.7.0
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2017-12-26 06:36:07 -05:00
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This document is a list of user visible feature changes made between
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releases except for bug fixes.
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2018-08-18 05:53:11 -04:00
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Note that each entry is kept so brief that no reason behind or reference
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information is supplied with. For a full list of changes with all
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sufficient information, see the ChangeLog file or Redmine
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2018-10-17 07:35:28 -04:00
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(e.g. <tt>https://bugs.ruby-lang.org/issues/$FEATURE_OR_BUG_NUMBER</tt>)
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2017-12-26 06:36:07 -05:00
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2018-12-25 10:58:49 -05:00
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== Changes since the 2.6.0 release
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2017-12-28 15:09:24 -05:00
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2018-10-17 07:35:28 -04:00
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=== Language changes
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2017-12-28 15:09:24 -05:00
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2018-12-31 10:00:37 -05:00
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* Method reference operator, <code>.:</code> is introduced as an
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experimental feature. [Feature #12125] [Feature #13581]
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2019-01-10 03:19:14 -05:00
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* Proc.new and proc with no block in a method called with a block is warned
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now.
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* lambda with no block in a method called with a block errs.
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2019-03-11 08:48:33 -04:00
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* Non-Symbol keys in a keyword arguments hash was prohibited at 2.6.0, but
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now allowed again. [Bug #15658]
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2019-03-17 01:21:18 -04:00
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* Numbered parameter as the default block parameter is introduced as an
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experimental feature. [Feature #4475]
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2019-04-03 04:11:41 -04:00
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* A beginless range is experimentally introduced. It might not be as useful
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as an endless range, but would be good for DSL purpose.
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ary[..3] # identical to ary[0..3]
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where(sales: ..100)
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2018-10-17 07:35:28 -04:00
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=== Core classes updates (outstanding ones only)
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2017-12-28 15:09:24 -05:00
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2019-02-07 03:14:10 -05:00
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Enumerable::
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New method::
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2019-03-14 21:19:31 -04:00
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* Added Enumerable#tally. [Feature #11076]
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2019-02-07 03:14:10 -05:00
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2019-03-11 05:52:40 -04:00
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Enumerator::
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New method::
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2019-03-14 21:19:31 -04:00
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* Added Enumerator::Yielder#to_proc so that a Yielder object can be
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directly passed to another method as a block argument.
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\[Feature #15618]
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2019-03-11 05:52:40 -04:00
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2019-03-05 22:15:06 -05:00
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Regexp/String::
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* Update Unicode version and Emoji version from 11.0.0 to 12.0.0.
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2019-03-14 21:19:31 -04:00
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\[Feature #15321]
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2019-03-05 22:15:06 -05:00
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2019-04-09 05:41:00 -04:00
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* Update Unicode version to 12.1.0, adding support for
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U+32FF SQUARE ERA NAME REIWA
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\[Feature #15195]
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2018-10-17 07:35:28 -04:00
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=== Stdlib updates (outstanding ones only)
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2017-12-28 15:09:24 -05:00
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2019-02-02 01:38:09 -05:00
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CSV::
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2019-01-25 01:49:59 -05:00
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* Upgrade to 3.0.4.
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See https://github.com/ruby/csv/blob/master/NEWS.md.
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2019-04-08 21:27:36 -04:00
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Date::
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* Date.jisx0301, Date#jisx0301, and Date.parse provisionally support the
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new Japanese era as an informal extension, until the new JIS X 0301 is
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issued. [Feature #15742]
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2019-03-28 07:50:19 -04:00
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ERB::
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2019-03-28 08:35:20 -04:00
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* Prohibit marshaling ERB instance.
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2019-03-28 07:50:19 -04:00
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2019-02-02 01:38:09 -05:00
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RSS::
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2019-01-25 01:35:04 -05:00
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* Upgrade to RSS 0.2.8.
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See https://github.com/ruby/rss/blob/master/NEWS.md.
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2018-11-05 02:01:47 -05:00
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=== Compatibility issues (excluding feature bug fixes)
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2018-11-02 19:07:56 -04:00
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2018-10-17 07:35:28 -04:00
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=== Stdlib compatibility issues (excluding feature bug fixes)
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2017-12-28 15:09:24 -05:00
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2019-03-11 09:00:31 -04:00
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profile.rb, Profiler__::
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* Removed from standard library. No one maintains it from Ruby 2.0.0.
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2018-10-17 07:35:28 -04:00
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=== C API updates
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2017-12-28 15:09:24 -05:00
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2018-10-17 07:35:28 -04:00
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=== Implementation improvements
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2017-12-28 15:09:24 -05:00
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2019-03-17 01:28:54 -04:00
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JIT::
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2019-03-17 09:51:30 -04:00
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* Default value of --jit-max-cache is changed from 1,000 to 100
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2019-03-17 01:28:54 -04:00
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* Default value of --jit-min-calls is changed from 5 to 10,000
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2018-10-17 07:35:28 -04:00
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=== Miscellaneous changes
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2019-01-10 03:22:23 -05:00
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* Require compilers to support C99 [Misc #15347]
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* Details of our dialect: https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/C99
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