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Filename : page-NEWS-3_1_0_md.ri
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U:RDoc::TopLevel[	i�I"NEWS/NEWS-3.1.0.md:ETcRDoc::Parser::Markdowno:RDoc::Markup::Document:@parts[7S:RDoc::Markup::Heading:
leveli:	textI"NEWS for Ruby 3.1.0;To:RDoc::Markup::Paragraph;[I"mThis document is a list of user-visible feature changes
since the *3.0.0* release, except for bug fixes.;To;;[I"FNote that each entry is kept to a minimum, see links for details.;TS;	;
i;I"Language changes;To:RDoc::Markup::List:
@type:BULLET:@items[o:RDoc::Markup::ListItem:@label0;[o;;[I"�The block argument can now be anonymous if the block will
only be passed to another method. [{Feature #11256}[https://bugs.ruby-lang.org/issues/11256]];Fo:RDoc::Markup::Verbatim;[I"def foo(&)
  bar(&)
end
;F:@format:	rubyo;;0;[o;;[I"fPin operator now takes an expression. [{Feature #17411}[https://bugs.ruby-lang.org/issues/17411]];Fo;;[I"gPrime.each_cons(2).lazy.find_all{_1 in [n, ^(n + 2)]}.take(3).to_a
#=> [[3, 5], [5, 7], [11, 13]]
;F;;o;;0;[o;;[I"|Pin operator now supports instance, class, and global variables.
[{Feature #17724}[https://bugs.ruby-lang.org/issues/17724]];Fo;;[I"D@n = 5
Prime.each_cons(2).lazy.find{_1 in [n, ^@n]}
#=> [3, 5]
;F;;o;;0;[o;;[I"9One-line pattern matching is no longer experimental.;Fo;;0;[o;;[I"yParentheses can be omitted in one-line pattern matching.
[{Feature #16182}[https://bugs.ruby-lang.org/issues/16182]];Fo;;[I"1[0, 1] => _, x
{y: 2} => y:
x #=> 1
y #=> 2
;F;;o;;0;[o;;[I"�Multiple assignment evaluation order has been made consistent with
single assignment evaluation order. With single assignment, Ruby
uses a left-to-right evaluation order. With this code:;Fo;;[I"foo[0] = bar
;F;;o;;[I",The following evaluation order is used:;Fo;
;:NUMBER;[o;;0;[o;;[I"<code>foo</code>;To;;0;[o;;[I"<code>bar</code>;To;;0;[o;;[I"><code>[]=</code> called on the result of <code>foo</code>;To;;[I"dIn Ruby before 3.1.0, multiple assignment did not follow this
evaluation order. With this code:;Fo;;[I"foo[0], bar.baz = a, b
;F;;o;;[I"HVersions of Ruby before 3.1.0 would evaluate in the following
order;Fo;
;;;[o;;0;[o;;[I"<code>a</code>;To;;0;[o;;[I"<code>b</code>;To;;0;[o;;[I"<code>foo</code>;To;;0;[o;;[I"><code>[]=</code> called on the result of <code>foo</code>;To;;0;[o;;[I"<code>bar</code>;To;;0;[o;;[I"?<code>baz=</code> called on the result of <code>bar</code>;To;;[I"�Starting in Ruby 3.1.0, the evaluation order is now consistent with
single assignment, with the left-hand side being evaluated before
the right-hand side:;Fo;
;;;[o;;0;[o;;[I"<code>foo</code>;To;;0;[o;;[I"<code>bar</code>;To;;0;[o;;[I"<code>a</code>;To;;0;[o;;[I"<code>b</code>;To;;0;[o;;[I"><code>[]=</code> called on the result of <code>foo</code>;To;;0;[o;;[I"?<code>baz=</code> called on the result of <code>bar</code>;To;;[I":[{Bug #4443}[https://bugs.ruby-lang.org/issues/4443]];To;;0;[	o;;[I"~Values in Hash literals and keyword arguments can be omitted.
[{Feature #14579}[https://bugs.ruby-lang.org/issues/14579]];Fo;;[I"For example,;Fo;
;;;[o;;0;[o;;[I"J<code>{x:, y:}</code> is a syntax sugar of <code>{x: x, y: y}</code>.;To;;0;[o;;[I"P<code>foo(x:, y:)</code> is a syntax sugar of <code>foo(x: x, y: y)</code>.;To;;[I"�Constant names, local variable names, and method names are allowed as
key names. Note that a reserved word is considered as a local
variable or method name even if it's a pseudo variable name such as
<code>self</code>.;Fo;;0;[o;;[I"�Non main-Ractors can get instance variables (ivars) of classes/modules
if ivars refer to shareable objects.
[{Feature #17592}[https://bugs.ruby-lang.org/issues/17592]];Fo;;0;[o;;[I"�A command syntax is allowed in endless method definitions, i.e.,
you can now write <code>def foo = puts "Hello"</code>.
Note that <code>private def foo = puts "Hello"</code> does not parse.
[{Feature #17398}[https://bugs.ruby-lang.org/issues/17398]];FS;	;
i;I"Command line options;To;
;;;[o;;0;[o;;[I"�<code>--disable-gems</code> is now explicitly declared as "just for debugging".
 Never use it in any real-world codebase.
 [{Feature #17684}[https://bugs.ruby-lang.org/issues/17684]];TS;	;
i;I"Core classes updates;To;;[I"8Note: We're only listing outstanding class updates.;To;
;;;[o;;0;[o;;[I"
Array;Fo;
;;;[o;;0;[o;;[I"[Array#intersect? is added. [{Feature #15198}[https://bugs.ruby-lang.org/issues/15198]];Fo;;0;[o;;[I"
Class;Fo;
;;;[o;;0;[o;;[I"�Class#subclasses, which returns an array of classes
directly inheriting from the receiver, not
including singleton classes.
[{Feature #18273}[https://bugs.ruby-lang.org/issues/18273]];Fo;;[I"�class A; end
class B < A; end
class C < B; end
class D < A; end
A.subclasses    #=> [D, B]
B.subclasses    #=> [C]
C.subclasses    #=> []
;F;;o;;0;[o;;[I"Enumerable;Fo;
;;;[o;;0;[o;;[I"]Enumerable#compact is added. [{Feature #17312}[https://bugs.ruby-lang.org/issues/17312]];Fo;;0;[o;;[I"xEnumerable#tally now accepts an optional hash to count. [{Feature #17744}[https://bugs.ruby-lang.org/issues/17744]];Fo;;0;[o;;[I"rEnumerable#each_cons and each_slice to return a receiver. [{GH-1509}[https://github.com/ruby/ruby/pull/1509]];Fo;;[I"y[1, 2, 3].each_cons(2){}
# 3.0 => nil
# 3.1 => [1, 2, 3]

[1, 2, 3].each_slice(2){}
# 3.0 => nil
# 3.1 => [1, 2, 3]
;F;;o;;0;[o;;[I"Enumerator::Lazy;Fo;
;;;[o;;0;[o;;[I"cEnumerator::Lazy#compact is added. [{Feature #17312}[https://bugs.ruby-lang.org/issues/17312]];Fo;;0;[o;;[I"	File;Fo;
;;;[o;;0;[o;;[I"�File.dirname now accepts an optional argument for the level to
strip path components. [{Feature #12194}[https://bugs.ruby-lang.org/issues/12194]];Fo;;0;[o;;[I"GC;Fo;
;;;[o;;0;[o;;[I"5"GC.measure_total_time = true" enables the measurement of GC.
Measurement can introduce overhead. It is enabled by default.
GC.measure_total_time returns the current setting.
GC.stat[:time] or GC.stat(:time) returns measured time
in milli-seconds. [[{Feature #10917}[https://bugs.ruby-lang.org/issues/10917]]];Fo;;0;[o;;[I"wGC.total_time returns measured time in nano-seconds. [[{Feature #10917}[https://bugs.ruby-lang.org/issues/10917]]];Fo;;0;[o;;[I"Integer;Fo;
;;;[o;;0;[o;;[I"^Integer.try_convert is added. [{Feature #15211}[https://bugs.ruby-lang.org/issues/15211]];Fo;;0;[o;;[I"Kernel;Fo;
;;;[o;;0;[o;;[I"�Kernel#load now accepts a module as the second argument,
and will load the file using the given module as the
top-level module. [{Feature #6210}[https://bugs.ruby-lang.org/issues/6210]];Fo;;0;[o;;[I"Marshal;Fo;
;;;[o;;0;[o;;[I"�Marshal.load now accepts a <code>freeze: true</code> option.
All returned objects are frozen except for <code>Class</code> and
<code>Module</code> instances. Strings are deduplicated. [{Feature #18148}[https://bugs.ruby-lang.org/issues/18148]];Fo;;0;[o;;[I"MatchData;Fo;
;;;[o;;0;[o;;[I"YMatchData#match is added [{Feature #18172}[https://bugs.ruby-lang.org/issues/18172]];Fo;;0;[o;;[I"`MatchData#match_length is added [{Feature #18172}[https://bugs.ruby-lang.org/issues/18172]];Fo;;0;[o;;[I"Method / UnboundMethod;Fo;
;;;[o;;0;[o;;[I"�Method#public?, Method#private?, Method#protected?,
UnboundMethod#public?, UnboundMethod#private?,
UnboundMethod#protected? have been added. [{Feature #11689}[https://bugs.ruby-lang.org/issues/11689]];Fo;;0;[o;;[I"Module;Fo;
;;;[o;;0;[o;;[I"Module#prepend now modifies the ancestor chain if the receiver
already includes the argument. Module#prepend still does not
modify the ancestor chain if the receiver has already prepended
the argument. [{Bug #17423}[https://bugs.ruby-lang.org/issues/17423]];Fo;;0;[o;;[I"1Module#private, #public, #protected, and #module_function will
now return their arguments. If a single argument is given, it
is returned. If no arguments are given, nil is returned. If
multiple arguments are given, they are returned as an array.
[{Feature #12495}[https://bugs.ruby-lang.org/issues/12495]];Fo;;0;[o;;[I"Process;Fo;
;;;[o;;0;[o;;[I">Process._fork is added. This is a core method for fork(2).
Do not call this method directly; it is called by existing
fork methods: Kernel.#fork, Process.fork, and IO.popen("-").
Application monitoring libraries can overwrite this method to
hook fork events. [{Feature #17795}[https://bugs.ruby-lang.org/issues/17795]];Fo;;0;[o;;[I"Struct;Fo;
;;;[o;;0;[o;;[I"�Passing only keyword arguments to Struct#initialize is warned.
You need to use a Hash literal to set a Hash to a first member.
[{Feature #16806}[https://bugs.ruby-lang.org/issues/16806]];Fo;;0;[o;;[I"cStructClass#keyword_init? is added [{Feature #18008}[https://bugs.ruby-lang.org/issues/18008]];Fo;;0;[o;;[I"String;Fo;
;;;[o;;0;[o;;[I"�Update Unicode version to 13.0.0 [{Feature #17750}[https://bugs.ruby-lang.org/issues/17750]]
and Emoji version to 13.0 [{Feature #18029}[https://bugs.ruby-lang.org/issues/18029]];Fo;;0;[o;;[I":String#unpack and String#unpack1 now accept an <code>offset:</code> keyword
argument to start the unpacking after an arbitrary number of bytes
have been skipped. If <code>offset</code> is outside of the string bounds
<code>ArgumentError</code> is raised. [{Feature #18254}[https://bugs.ruby-lang.org/issues/18254]];Fo;;0;[o;;[I"Thread;Fo;
;;;[o;;0;[o;;[I"bThread#native_thread_id is added. [{Feature #17853}[https://bugs.ruby-lang.org/issues/17853]];Fo;;0;[o;;[I"Thread::Backtrace;Fo;
;;;[o;;0;[o;;[I"�Thread::Backtrace.limit, which returns the value to limit backtrace
length set by <code>--backtrace-limit</code> command line option, is added.
[{Feature #17479}[https://bugs.ruby-lang.org/issues/17479]];Fo;;0;[o;;[I"Thread::Queue;Fo;
;;;[o;;0;[o;;[I"Thread::Queue.new now accepts an Enumerable of initial values.
[{Feature #17327}[https://bugs.ruby-lang.org/issues/17327]];Fo;;0;[o;;[I"	Time;Fo;
;;;[o;;0;[
o;;[I"Time.new now accepts optional <code>in:</code> keyword argument for the
timezone, as well as <code>Time.at</code> and <code>Time.now</code>, so that is now
you can omit minor arguments to <code>Time.new</code>. [{Feature #17485}[https://bugs.ruby-lang.org/issues/17485]];Fo;;[I"HTime.new(2021, 12, 25, in: "+07:00")
#=> 2021-12-25 00:00:00 +0700
;F;;o;;[I"ZAt the same time, time component strings are converted to
integers more strictly now.;Fo;;[I"`Time.new(2021, 12, 25, "+07:30")
#=> invalid value for Integer(): "+07:30" (ArgumentError)
;F;;o;;[I"�Ruby 3.0 or earlier returned probably unexpected result
<code>2021-12-25 07:00:00</code>, not <code>2021-12-25 07:30:00</code> nor
<code>2021-12-25 00:00:00 +07:30</code>.;Fo;;0;[o;;[I"�Time#strftime supports RFC 3339 UTC for unknown offset local
time, <code>-0000</code>, as <code>%-z</code>. [{Feature #17544}[https://bugs.ruby-lang.org/issues/17544]];Fo;;0;[o;;[I"TracePoint;Fo;
;;;[o;;0;[o;;[I"�TracePoint.allow_reentry is added to allow reenter while TracePoint
callback.
[{Feature #15912}[https://bugs.ruby-lang.org/issues/15912]];Fo;;0;[o;;[I"$LOAD_PATH;Fo;
;;;[o;;0;[o;;[I"p$LOAD_PATH.resolve_feature_path does not raise. [{Feature #16043}[https://bugs.ruby-lang.org/issues/16043]];Fo;;0;[o;;[I"Fiber Scheduler;Fo;
;;;[o;;0;[o;;[I"�Add support for <code>Addrinfo.getaddrinfo</code> using <code>address_resolve</code> hook.
[{Feature #17370}[https://bugs.ruby-lang.org/issues/17370]];Fo;;0;[o;;[I"�Introduce non-blocking <code>Timeout.timeout</code> using <code>timeout_after</code> hook.
[{Feature #17470}[https://bugs.ruby-lang.org/issues/17470]];Fo;;0;[o;;[I"�Introduce new scheduler hooks <code>io_read</code> and <code>io_write</code> along with a
low level <code>IO::Buffer</code> for zero-copy read/write. [{Feature #18020}[https://bugs.ruby-lang.org/issues/18020]];Fo;;0;[o;;[I"�IO hooks <code>io_wait</code>, <code>io_read</code>, <code>io_write</code>, receive the original IO object
where possible. [{Bug #18003}[https://bugs.ruby-lang.org/issues/18003]];Fo;;0;[o;;[I"bMake <code>Monitor</code> fiber-safe. [{Bug #17827}[https://bugs.ruby-lang.org/issues/17827]];Fo;;0;[o;;[I"tReplace copy coroutine with pthread implementation. [{Feature #18015}[https://bugs.ruby-lang.org/issues/18015]];Fo;;0;[o;;[I"Refinement;Fo;
;;;[o;;0;[o;;[I"�New class which represents a module created by Module#refine.
<code>include</code> and <code>prepend</code> are deprecated, and <code>import_methods</code> is added
instead. [{Bug #17429}[https://bugs.ruby-lang.org/issues/17429]];FS;	;
i;I"Stdlib updates;To;
;;;[o;;0;[o;;[I"+The following default gem are updated.;Fo;
;;;[so;;0;[o;;[I"RubyGems 3.3.3;Fo;;0;[o;;[I"base64 0.1.1;Fo;;0;[o;;[I"benchmark 0.2.0;Fo;;0;[o;;[I"bigdecimal 3.1.1;Fo;;0;[o;;[I"bundler 2.3.3;Fo;;0;[o;;[I"cgi 0.3.1;Fo;;0;[o;;[I"csv 3.2.2;Fo;;0;[o;;[I"date 3.2.2;Fo;;0;[o;;[I"did_you_mean 1.6.1;Fo;;0;[o;;[I"digest 3.1.0;Fo;;0;[o;;[I"drb 2.1.0;Fo;;0;[o;;[I"erb 2.2.3;Fo;;0;[o;;[I"error_highlight 0.3.0;Fo;;0;[o;;[I"etc 1.3.0;Fo;;0;[o;;[I"fcntl 1.0.1;Fo;;0;[o;;[I"fiddle 1.1.0;Fo;;0;[o;;[I"fileutils 1.6.0;Fo;;0;[o;;[I"find 0.1.1;Fo;;0;[o;;[I"io-console 0.5.10;Fo;;0;[o;;[I"io-wait 0.2.1;Fo;;0;[o;;[I"ipaddr 1.2.3;Fo;;0;[o;;[I"irb 1.4.1;Fo;;0;[o;;[I"json 2.6.1;Fo;;0;[o;;[I"logger 1.5.0;Fo;;0;[o;;[I"net-http 0.2.0;Fo;;0;[o;;[I"net-protocol 0.1.2;Fo;;0;[o;;[I"nkf 0.1.1;Fo;;0;[o;;[I"open-uri 0.2.0;Fo;;0;[o;;[I"openssl 3.0.0;Fo;;0;[o;;[I"optparse 0.2.0;Fo;;0;[o;;[I"ostruct 0.5.2;Fo;;0;[o;;[I"pathname 0.2.0;Fo;;0;[o;;[I"
pp 0.3.0;Fo;;0;[o;;[I"prettyprint 0.1.1;Fo;;0;[o;;[I"psych 4.0.3;Fo;;0;[o;;[I"racc 1.6.0;Fo;;0;[o;;[I"rdoc 6.4.0;Fo;;0;[o;;[I"readline 0.0.3;Fo;;0;[o;;[I"readline-ext 0.1.4;Fo;;0;[o;;[I"reline 0.3.0;Fo;;0;[o;;[I"resolv 0.2.1;Fo;;0;[o;;[I"rinda 0.1.1;Fo;;0;[o;;[I"ruby2_keywords 0.0.5;Fo;;0;[o;;[I"securerandom 0.1.1;Fo;;0;[o;;[I"set 1.0.2;Fo;;0;[o;;[I"stringio 3.0.1;Fo;;0;[o;;[I"strscan 3.0.1;Fo;;0;[o;;[I"tempfile 0.1.2;Fo;;0;[o;;[I"time 0.2.0;Fo;;0;[o;;[I"timeout 0.2.0;Fo;;0;[o;;[I"tmpdir 0.1.2;Fo;;0;[o;;[I"
un 0.2.0;Fo;;0;[o;;[I"uri 0.11.0;Fo;;0;[o;;[I"yaml 0.2.0;Fo;;0;[o;;[I"zlib 2.1.1;Fo;;0;[o;;[I"RubyGems 3.3.3;Fo;;0;[o;;[I"base64 0.1.1;Fo;;0;[o;;[I"benchmark 0.2.0;Fo;;0;[o;;[I"bigdecimal 3.1.1;Fo;;0;[o;;[I"bundler 2.3.3;Fo;;0;[o;;[I"cgi 0.3.1;Fo;;0;[o;;[I"csv 3.2.2;Fo;;0;[o;;[I"date 3.2.2;Fo;;0;[o;;[I"did_you_mean 1.6.1;Fo;;0;[o;;[I"digest 3.1.0;Fo;;0;[o;;[I"drb 2.1.0;Fo;;0;[o;;[I"erb 2.2.3;Fo;;0;[o;;[I"error_highlight 0.3.0;Fo;;0;[o;;[I"etc 1.3.0;Fo;;0;[o;;[I"fcntl 1.0.1;Fo;;0;[o;;[I"fiddle 1.1.0;Fo;;0;[o;;[I"fileutils 1.6.0;Fo;;0;[o;;[I"find 0.1.1;Fo;;0;[o;;[I"io-console 0.5.10;Fo;;0;[o;;[I"io-wait 0.2.1;Fo;;0;[o;;[I"ipaddr 1.2.3;Fo;;0;[o;;[I"irb 1.4.1;Fo;;0;[o;;[I"json 2.6.1;Fo;;0;[o;;[I"logger 1.5.0;Fo;;0;[o;;[I"net-http 0.2.0;Fo;;0;[o;;[I"net-protocol 0.1.2;Fo;;0;[o;;[I"nkf 0.1.1;Fo;;0;[o;;[I"open-uri 0.2.0;Fo;;0;[o;;[I"openssl 3.0.0;Fo;;0;[o;;[I"optparse 0.2.0;Fo;;0;[o;;[I"ostruct 0.5.2;Fo;;0;[o;;[I"pathname 0.2.0;Fo;;0;[o;;[I"
pp 0.3.0;Fo;;0;[o;;[I"prettyprint 0.1.1;Fo;;0;[o;;[I"psych 4.0.3;Fo;;0;[o;;[I"racc 1.6.0;Fo;;0;[o;;[I"rdoc 6.4.0;Fo;;0;[o;;[I"readline 0.0.3;Fo;;0;[o;;[I"readline-ext 0.1.4;Fo;;0;[o;;[I"reline 0.3.0;Fo;;0;[o;;[I"resolv 0.2.1;Fo;;0;[o;;[I"rinda 0.1.1;Fo;;0;[o;;[I"ruby2_keywords 0.0.5;Fo;;0;[o;;[I"securerandom 0.1.1;Fo;;0;[o;;[I"set 1.0.2;Fo;;0;[o;;[I"stringio 3.0.1;Fo;;0;[o;;[I"strscan 3.0.1;Fo;;0;[o;;[I"tempfile 0.1.2;Fo;;0;[o;;[I"time 0.2.0;Fo;;0;[o;;[I"timeout 0.2.0;Fo;;0;[o;;[I"tmpdir 0.1.2;Fo;;0;[o;;[I"
un 0.2.0;Fo;;0;[o;;[I"uri 0.11.0;Fo;;0;[o;;[I"yaml 0.2.0;Fo;;0;[o;;[I"zlib 2.1.1;Fo;;0;[o;;[I",The following bundled gems are updated.;Fo;
;;;[o;;0;[o;;[I"minitest 5.15.0;Fo;;0;[o;;[I"power_assert 2.0.1;Fo;;0;[o;;[I"rake 13.0.6;Fo;;0;[o;;[I"test-unit 3.5.3;Fo;;0;[o;;[I"rexml 3.2.5;Fo;;0;[o;;[I"rbs 2.0.0;Fo;;0;[o;;[I"typeprof 0.21.1;Fo;;0;[o;;[I"minitest 5.15.0;Fo;;0;[o;;[I"power_assert 2.0.1;Fo;;0;[o;;[I"rake 13.0.6;Fo;;0;[o;;[I"test-unit 3.5.3;Fo;;0;[o;;[I"rexml 3.2.5;Fo;;0;[o;;[I"rbs 2.0.0;Fo;;0;[o;;[I"typeprof 0.21.1;Fo;;0;[o;;[I"5The following default gems are now bundled gems.;Fo;
;;;[o;;0;[o;;[I"net-ftp 0.1.3;Fo;;0;[o;;[I"net-imap 0.2.2;Fo;;0;[o;;[I"net-pop 0.1.1;Fo;;0;[o;;[I"net-smtp 0.3.1;Fo;;0;[o;;[I"matrix 0.4.2;Fo;;0;[o;;[I"prime 0.1.2;Fo;;0;[o;;[I"debug 1.4.0;Fo;;0;[o;;[I"net-ftp 0.1.3;Fo;;0;[o;;[I"net-imap 0.2.2;Fo;;0;[o;;[I"net-pop 0.1.1;Fo;;0;[o;;[I"net-smtp 0.3.1;Fo;;0;[o;;[I"matrix 0.4.2;Fo;;0;[o;;[I"prime 0.1.2;Fo;;0;[o;;[I"debug 1.4.0;Fo;;0;[o;;[I"HThe following gems has been removed from the Ruby standard library.;Fo;
;;;[o;;0;[o;;[I"dbm;Fo;;0;[o;;[I"	gdbm;Fo;;0;[o;;[I"tracer;Fo;;0;[o;;[I"dbm;Fo;;0;[o;;[I"	gdbm;Fo;;0;[o;;[I"tracer;Fo;;0;[o;;[I"�Coverage measurement now supports suspension. You can use <code>Coverage.suspend</code>
 to stop the measurement temporarily, and <code>Coverage.resume</code> to restart it.
 See [{Feature #18176}[https://bugs.ruby-lang.org/issues/18176]] in detail.;Fo;;0;[o;;[I"�Random::Formatter is moved to random/formatter.rb, so that you can
 use <code>Random#hex</code>, <code>Random#base64</code>, and so on without SecureRandom.
 [{Feature #18190}[https://bugs.ruby-lang.org/issues/18190]];FS;	;
i;I"Compatibility issues;To;;[I"'Note: Excluding feature bug fixes.;To;
;;;[o;;0;[o;;[I"�<code>rb_io_wait_readable</code>, <code>rb_io_wait_writable</code> and <code>rb_wait_for_single_fd</code> are
 deprecated in favour of <code>rb_io_maybe_wait_readable</code>,
 <code>rb_io_maybe_wait_writable</code> and <code>rb_io_maybe_wait</code> respectively.
 <code>rb_thread_wait_fd</code> and <code>rb_thread_fd_writable</code> are deprecated. [{Bug #18003}[https://bugs.ruby-lang.org/issues/18003]];TS;	;
i;I" Stdlib compatibility issues;To;
;;;[	o;;0;[o;;[I"�<code>ERB#initialize</code> warns <code>safe_level</code> and later arguments even without -w.
 [{Feature #14256}[https://bugs.ruby-lang.org/issues/14256]];To;;0;[o;;[I"F<code>lib/debug.rb</code> is replaced with <code>debug.gem</code>;To;;0;[o;;[I"�<code>Kernel#pp</code> in <code>lib/pp.rb</code> uses the width of <code>IO#winsize</code> by default.
 This means that the output width is automatically changed depending on
 your terminal size. [{Feature #12913}[https://bugs.ruby-lang.org/issues/12913]];To;;0;[o;;[I"�Psych 4.0 changes <code>Psych.load</code> as <code>safe_load</code> by the default.
 You may need to use Psych 3.3.2 for migrating to this behavior.
 [{Bug #17866}[https://bugs.ruby-lang.org/issues/17866]];FS;	;
i;I"C API updates;To;
;;;[o;;0;[o;;[I"DDocumented. [{GH-4815}[https://github.com/ruby/ruby/pull/4815]];Fo;;0;[o;;[I"�<code>rb_gc_force_recycle</code> is deprecated and has been changed to a no-op.
 [{Feature #18290}[https://bugs.ruby-lang.org/issues/18290]];TS;	;
i;I" Implementation improvements;To;
;;;[
o;;0;[o;;[I"~Inline cache mechanism is introduced for reading class variables.
 [{Feature #17763}[https://bugs.ruby-lang.org/issues/17763]];Fo;;0;[o;;[I"�<code>instance_eval</code> and <code>instance_exec</code> now only allocate a singleton class when
 required, avoiding extra objects and improving performance. [{GH-5146}[https://github.com/ruby/ruby/pull/5146]];To;;0;[o;;[I"vThe performance of <code>Struct</code> accessors is improved. [{GH-5131}[https://github.com/ruby/ruby/pull/5131]];Fo;;0;[o;;[I"�<code>mandatory_only?</code> builtin special form to improve performance on
 builtin methods. [{GH-5112}[https://github.com/ruby/ruby/pull/5112]];To;;0;[o;;[I"6Experimental feature Variable Width Allocation in the garbage collector.
 This feature is turned off by default and can be enabled by compiling Ruby
 with flag <code>USE_RVARGC=1</code> set. [{Feature #18045}[https://bugs.ruby-lang.org/issues/18045]] [{Feature #18239}[https://bugs.ruby-lang.org/issues/18239]];FS;	;
i;I"JIT;To;
;;;[o;;0;[o;;[I"�Rename Ruby 3.0's <code>--jit</code> to <code>--mjit</code>, and alias <code>--jit</code> to <code>--yjit</code>
 on non-Windows x86-64 platforms and to <code>--mjit</code> on others.;TS;	;
i;I"	MJIT;To;
;;;[	o;;0;[o;;[I"LThe default <code>--mjit-max-cache</code> is changed from 100 to 10000.;Fo;;0;[o;;[I"WJIT-ed code is no longer cancelled when a TracePoint for class events
 is enabled.;Fo;;0;[o;;[I"\The JIT compiler no longer skips compilation of methods longer than
 1000 instructions.;Fo;;0;[o;;[I"�<code>--mjit-verbose</code> and <code>--mjit-warning</code> output "JIT cancel" when JIT-ed
 code is disabled because TracePoint or GC.compact is used.;TS;	;
i;I"3YJIT: New experimental in-process JIT compiler;To;;[I"wNew JIT compiler available as an experimental feature. [{Feature #18229}[https://bugs.ruby-lang.org/issues/18229]];To;;[I"pSee {this blog post}[https://shopify.engineering/yjit-just-in-time-compiler-cruby] introducing the project.;To;
;;;[	o;;0;[o;;[I"UDisabled by default, use <code>--yjit</code> command-line option to enable YJIT.;Fo;;0;[o;;[I"yPerformance improvements on benchmarks based on real-world software,
 up to 22% on railsbench, 39% on liquid-render.;Fo;;0;[o;;[I"Fast warm-up times.;Fo;;0;[o;;[I"3Limited to Unix-like x86-64 platforms for now.;FS;	;
i;I"Static analysis;TS;	;
i;I"RBS;To;
;;;[
o;;0;[o;;[I"ZGenerics type parameters can be bounded ({PR}[https://github.com/ruby/rbs/pull/844]).;Fo;;[I"# `T` must be compatible with the `_Output` interface.
# `PrettyPrint[String]` is ok, but `PrettyPrint[Integer]` is a type error.
class PrettyPrint[T < _Output]
  interface _Output
    def <<: (String) -> void
  end

  attr_reader output: T

  def initialize: (T output) -> void
end
;F;:rbso;;0;[o;;[I"NType aliases can be generic. ({PR}[https://github.com/ruby/rbs/pull/823]);Fo;;[I"�# Defines a generic type `list`.
type list[T] = [ T, list[T] ]
             | nil

type str_list = list[String]
type int_list = list[Integer]
;F;;o;;0;[o;;[I"�{rbs collection}[https://github.com/ruby/rbs/blob/cdd6a3a896001e25bd1feda3eab7f470bae935c1/docs/collection.md] has been introduced to manage gems’ RBSs.;To;;0;[o;;[I"QMany signatures for built-in and standard libraries have been added/updated.;Fo;;0;[o;;[I"AIt includes many bug fixes and performance improvements too.;Fo;;[I"�See the {CHANGELOG.md}[https://github.com/ruby/rbs/blob/cdd6a3a896001e25bd1feda3eab7f470bae935c1/CHANGELOG.md] for more information.;TS;	;
i;I"
TypeProf;To;
;;;[o;;0;[o;;[I"�{Experimental IDE support}[https://github.com/ruby/typeprof/blob/ca15c5dae9bd62668463165f8409bd66ce7de223/doc/ide.md] has been implemented.;To;;0;[o;;[I"BMany bug fixes and performance improvements since Ruby 3.0.0.;TS;	;
i;I"
Debugger;To;
;;;[o;;0;[o;;[I"A new debugger {debug.gem}[https://github.com/ruby/debug] is bundled.
 debug.gem is a fast debugger implementation, and it provides many features
 like remote debugging, colorful REPL, IDE (VSCode) integration, and more.
 It replaces <code>lib/debug.rb</code> standard library.;Fo;;0;[o;;[I"|<code>rdbg</code> command is also installed into <code>bin/</code> directory to start and control
 debugging execution.;TS;	;
i;I"error_highlight;To;;[I"wA built-in gem called error_highlight has been introduced.
It shows fine-grained error locations in the backtrace.;To;;[I"9Example: <code>title = json[:article][:title]</code>;To;;[I"+If <code>json</code> is nil, it shows:;To;;[I"�$ ruby test.rb
test.rb:2:in `<main>': undefined method `[]' for nil:NilClass (NoMethodError)

title = json[:article][:title]
            ^^^^^^^^^^
;T;:consoleo;;[I":If <code>json[:article]</code> returns nil, it shows:;To;;[I"�$ ruby test.rb
test.rb:2:in `<main>': undefined method `[]' for nil:NilClass (NoMethodError)

title = json[:article][:title]
                      ^^^^^^^^
;T;;o;;[I"�This feature is enabled by default.
You can disable it by using a command-line option <code>--disable-error_highlight</code>.
See {the repository}[https://github.com/ruby/error_highlight] in detail.;TS;	;
i;I"*IRB Autocomplete and Document Display;To;;[I"�The IRB now has an autocomplete feature, where you can just type in the code, and the completion candidates dialog will appear. You can use Tab and Shift+Tab to move up and down.;To;;[I"�If documents are installed when you select a completion candidate, the documentation dialog will appear next to the completion candidates dialog, showing part of the content. You can read the full document by pressing Alt+d.;TS;	;
i;I"Miscellaneous changes;To;
;;;[	o;;0;[o;;[I"�lib/objspace/trace.rb is added, which is a tool for tracing the object
 allocation. Just by requiring this file, tracing is started _immediately_.
 Just by <code>Kernel#p</code>, you can investigate where an object was created.
 Note that just requiring this file brings a large performance overhead.
 This is only for debugging purposes. Do not use this in production.
 [{Feature #17762}[https://bugs.ruby-lang.org/issues/17762]];Fo;;0;[o;;[I"�Now exceptions raised in finalizers will be printed to <code>STDERR</code>, unless
 <code>$VERBOSE</code> is <code>nil</code>. [{Feature #17798}[https://bugs.ruby-lang.org/issues/17798]];Fo;;0;[o;;[I"y<code>ruby -run -e httpd</code> displays URLs to access. [{Feature #17847}[https://bugs.ruby-lang.org/issues/17847]];To;;0;[o;;[I"oAdd <code>ruby -run -e colorize</code> to colorize Ruby code using
 <code>IRB::Color.colorize_code</code>.;F:
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