# 2.6

12/25/2018

Ruby 2.6.0

* Feature #1436: Please consider this addition to resolv.rb which adds methods for resolving LOC resources
* Bug #1771: system()/popen()/popen3() & windows & unicode is not working
* Bug #2154: filesystem encoding of UNIX
* Feature #2542: URI lib should be updated to RFC 3986
* Feature #5373: SMTP - new method
* Feature #2832: Vector#each and Enumerable
* Feature #14396: public, protected and private should return their arguments instead of self
* Feature #2837: Compile-time constant for HEAP_GROWTH_FACTOR (patch attached)
* Bug #3270: BigMath.exp が絶対値が大きな引数で遅い
* Feature #3620: Add Queue, SIzedQueue and ConditionVariable implementations in C in addition to ruby ones
* Feature #3697: [PATCH] Allow build of dbm extension with Berkeley DB 5.0 series (for 1.9.2_rc2)
* Bug #9897: Build fails for fiddle with libffi version 3.1
* Feature #5231: Allow to disable versioned paths
* Feature #4195: option for Socket#sendmsg
* Feature #3946: Array#packのqQ指定子に機種依存サイズフラグ!を追加
* Feature #4211: Converting the Ruby and C API documentation to YARD syntax
* Feature #4269: command with && should execute as shell
* Feature #4270: Resolv does not handle UTF8 domain names.
* Bug #4285: Ruby don't have asynchrounous exception safe syntax and It should have.
* Feature #4299: no warning: found = in conditional, should be ==
* Feature #4646: [PATCH] io/wait: add IO#wait_writable method
* Feature #6074: Allow alias arguments to have a comma
* Feature #4532: [PATCH] add IO#pread and IO#pwrite methods
* Feature #4772: Hash#add_keys
* Feature #4801: Shorthand Hash Syntax for Strings
* Bug #4821: Random Segfaults (in start_thread?)  
* Feature #4976: Pathname#=~ が undef されている理由
* Bug #4964: open-uri failed to handle multiple "Set-Cookie" headers
* Feature #4990: Proposal: Internal GC/memory subsystem API
* Feature #5005: Provide convenient access to original methods
* Feature #5281: Support for custom sitearch and vendorarch directories
* Feature #5392: Symbol GC
* Feature #7763: add Win32::Registry#values
* Feature #5394: Anonymous Symbols, Anonymous Methods
* Feature #5448: Singleton module's ::instance method should forward parameters
* Feature #5534: Redefine Range class and introduce RelativeNumeric and RelativeRange
* Feature #5630: Missing custom transfer modes in Net::FTP
* Feature #5707: temporary file creation without finalizer and delegate.
* Feature #5856: Feature: Raise any object
* Feature #6023: Add "a ?= 2" support for meaning "a = a.nil? ? 2 : a"
* Feature #7684: Net::HTTPHeader#set_form_data should accept a String
* Feature #6065: Allow Bignum marshalling/unmarshalling from C API
* Feature #6241: Module#method_defined? with inherited flag
* Feature #6111: Request for making ruby multiarchable
* Feature #6154: Eliminate extending WaitReadable/Writable at runtime
* Feature #6225: Hash#+
* Feature #6321: Find and repair bad bytes in encodings, without transcoding
* Bug #6479: ipaddr.rbの受け付ける書式が、プラットフォームによって異なる
* Feature #6483: parametric map
* Feature #6528: Add Pathname#write and Pathname#binwrite
* Bug #6514: Abort trap: 6 running rspec on rdf.rb
* Feature #6561: ?= operator
* Feature #6583: Improve socket exception message when bind() fails
* Feature #6588: Set#intersect?
* Feature #6589: Set#rehash
* Feature #6626: Readline.delete_text
* Feature #6643: io.seek(off, :end)
* Feature #6707: Remove checks for Ruby 1.9 in trunk
* Feature #6752: Replacing ill-formed subsequencce
* Feature #6710: new special binding specifier :isolated
* Feature #14255: Deprecate $SAFE support in ERB
* Bug #6862: BigMath.exp negative exponent
* Feature #6824: StopIteration gets a source method
* Feature #6847: Hash#extract
* Bug #6928: SecureRandom.random_bytes: assume zero entropy for seed value
* Feature #7022: add event hook for garbage collection
* Feature #7075: const_get でトップレベルの定数を参照する時に警告
* Feature #7051: Extend caller_locations API to include klass and bindings. Allow caller_locations as a method hanging off Thread. 
* Feature #7145: Add string-based range support to IMAP library
* Bug #7167: Segmentation Fault
* Bug #7171: test-all failure on OS X (RubyCI)
* Feature #7378: Adding Pathname#write
* Bug #7183: Resolv::DNS::getresources throws Errno::EACCES: Permission denied - bind(2) on solaris
* Bug #7190: warning: already initialized constant の書式
* Bug #7221: Unable to compile kgio under 1.9.3 with error: ruby-1.9.3-<plvl>/lib/ruby/1.9.1/mkmf.rb:597:in `Integer': can't convert nil into Integer (TypeError)
* Bug #7227: failed to build native extension for bcrypt-ruby gem under cygwin on windows xp
* Bug #7267: Dir.glob on Mac OS X returns unexpected string encodings for unicode file names
* Feature #7274: UnboundMethods should be bindable  to any object that is_a?(owner of the UnboundMethod)
* Feature #7292: Enumerable#to_h
* Feature #7388: Object#embed
* Feature #7336: Flexiable OPerator Precedence
* Feature #7368: rb_str_each_line()のパフォーマンス向上とリファクタリング
* Feature #7396: encode location header
* Feature #7401: Pathname#cleanpath default consider_symlink to true
* Feature #7434: Allow caller_locations and backtrace_locations to receive negative params
* Feature #7435: Exceptions should have backtrace_locations
* Bug #7458: Depending on value of BigDecimal::limit, addition can give inaccurate results
* Bug #7539: Misleading error message "can't convert nil into string"
* Bug #7489: Kernel.spawn sometimes executes string directly
* Feature #7505: Mutex#owned? メソッドの新設
* Feature #7609: Class#singleton_class?
* Feature #7849: Symbol#to_str
* Bug #7648: GServer does not close cleanly from signal interrupt context
* Bug #7811: SecureRandom::random_bytes Only use random bytes, not extra String
* Bug #7662: Unable to define a method with bare `**`
* Feature #7677: YAML load mode that does instantiate Ruby 
* Feature #7923: Queue#push and Queue#pop makes trap safe 
* Bug #15337: String#each_grapheme_cluster wrongly splits "\r\n"
* Feature #7730: Top level variables aren't checked for assigned but unused behavior
* Bug #7756: clang 4.2 sees through UNINITIALIZED_VAR macro, gives warning
* Bug #7757: String#start_with? and end_with? should accept Regexp
* Feature #7767: Tempfileで自動的にファイルを削除する
* Bug #7778: Irb loading generates 17x more open/stat system calls when a locale is set
* Bug #7808: [PATCH] Allow to install arch specific code into different location then nonarch
* Feature #7791: Let symbols be garbage collected
* Bug #7803: RDoc documentation: `Array#&` clarification
* Bug #7837: IO.open with three arguments where third argument is bogus reports an arity problem instead of type problem
* Feature #7872: `block_given?` does not work inside `define_method`
* Bug #7821: FileUtils.mkdir_p fails on Windows Unicode paths (\\?\UNC\) if dir already exists
* Bug #7829: Rounding error in Ruby Time
* Feature #7839: Symbol.freeze_symbols
* Bug #7856: The usage of try_run in extconf.rb is broken when crosscompiling
* Bug #7867: enable-multiach installs pkgconfig file into wrong dir
* Bug #7916: Callback Module.used is not used...
* Bug #7944: 1.9.3 can't process and generate documentation for 2.0.0 (lib/profiler.rb)
* Feature #8264: define struct under the given namespace
* Feature #7978: boolean to_i
* Feature #8572: Fiber should be a Enumerable
* Feature #8053: Make coercion if #=== operator doesn't know what to do
* Feature #8090: resolv.rb checks platform based on RUBY_PLATFORM, which is insufficient for JRuby
* Feature #8217: OpenSSL::BN.new with integers
* Bug #9340: Document order related behavior in Array#uniq
* Bug #14958: rand(endless_range) raises TypeError (no implicit conversion of Range into Integer)
* Feature #8600: Recognize variables declared in if modifier at end of line
* Bug #8644: valgrind error in a readline test
* Feature #8657: Make Find.find respect the encodings of arguments
* Feature #8820: Speed up Array#index
* Feature #8823: Run trap handler in an independent thread called "Signal thread"
* Feature #6714: Code injection framework
* Bug #9354: timeout() custom exception class cannot require argument
* Feature #3714: Add getters for Enumerator
* Feature #6003: test/unit/parallel.rb
* Bug #9262: global_method_cache should be configurable or grow automatically
* Feature #7854: New method Symbol[string]
* Feature #2348: RBTree Should be Added to the Standard Library
* Bug #9255: README -> README.md
* Bug #7780: Marshal & YAML should deserialize only basic types by default.
* Bug #9361: gem install --ignore-dependencies fails to install local gems
* Bug #9472: rb_io_syswrite needs RB_GC_GUARD
* Feature #9487: Add #dup?, #dup! and #clone? and #clone!
* Bug #9308: def's return value causes errors
* Feature #7309: HEREDOC end of line or similar
* Bug #7805: ruby 2.0rc2 core on solaris
* Bug #7398: Modify TestSSL#test_read_and_write to handle partial sysreads
* Feature #9778: Bring shortcut methods to Hash
* Bug #6573: Webrick test failures
* Bug #1685: Some windows unicode path issues remain
* Bug #9254: ./doc/contributing.rdoc -> CONTRIBUTING.md
* Bug #4008: Rails 3::declarative_authorization::authorization_rules request => segvault ruby 1.9.2
* Feature #7399: Add tests for PKCS7#type= and add_data.
* Feature #7226: Add Set#join method as a shortcut for to_a.join
* Feature #5677: IO C API
* Feature #6216: SystemStackError backtraces should not be reduced to one line
* Feature #4788: resolv.rb refactoring
* Bug #9886: [BUG] Segmentation fault ruby 2.0.0p481 (2014-05-08) [x64-mingw32]
* Bug #7733: Segfault in ::JSON.parse(nil, :quirks_mode => true)
* Feature #5138: Add nonblocking IO that does not use exceptions for EOF and EWOULDBLOCK
* Bug #7755: JSON::Generate#configure's argument conversion
* Bug #15329: Native implementation of coroutines - segfault
* Feature #2509: Recursive freezing?
* Bug #7707: FileUtils.mv fails to move symlink between filesystems
* Bug #7760: "-\n2000-01-02 03:04:05".to_yaml raise ArgumentError
* Feature #7998: "def" should return a value (the symbol of the method name) instead of nil
* Bug #10156: Underquoted definition warning in configure.in
* Bug #6592: test_call_double(DL::TestDL) fails on ARM HardFP
* Bug #10232: Trivial change of IMMEDIATE VALUE bits layout
* Bug #15358: Segfault in rb_transient_heap_mark when running Sequel's specs
* Feature #4935: Quoted Label Form for 1.9 Hashes
* Feature #9047: Alternate hash key syntax for symbols
* Bug #10464: Bignum同士の乗算の不具合
* Feature #4276: Allow use of quotes in symbol syntactic sugar for hashes
* Bug #10279: Syntax error on Hash with symbol syntax and nested expression: 2.1.3 regression 
* Misc #10469: Documented return value for Array#each
* Feature #4978: forwardable: support for 'delegate :method => :accessor'
* Feature #10480: Allow a catch-all approach to capture throws and rethrow them in a separate context
* Feature #3067: complex.c : Question: why Complex#~ is disabled? It's in the doc
* Feature #5809: Benchmark#bm: remove the label_width parameter
* Feature #10490: A Proposal to add Method "factorial" to the Fixnum and Bignum Classes
* Bug #10712: [PATCH] lib/resolv.rb: consider ENETUNREACH as ResolvTimeout
* Feature #3163: SyntaxError when using variable which is also a method in current scope with a Symbol argument
* Feature #4553: Add Set#pick and Set#pop
* Feature #3219: assert now passes non-boolean result
* Feature #3300: onig_number_of_captures に相当するメソッド Regexp#ncapture
* Bug #10494: ioctl returns EINVAL instead of ENOTTY for pipes on older linux, breaking piped test suite
* Feature #3328: Kernel#p outputs as default_internal encoding, and so on
* Bug #6701: once literal doesn't care escape
* Feature #4849: io/wait should have a way to avoid FIONREAD
* Feature #3333: mkmf (have|find)_cxx_header
* Bug #14674: New mismatched indentations warnings?
* Bug #6653: 1.9.2/1.9.3 exhibit SEGV with many threads+tcp connections
* Feature #2710: Kernel#load loads a relative path
* Feature #2673: the length for an enumerator generated by Array#permutation and Array#combination
* Bug #7847: gem release of io-console is broken on Windows
* Bug #1341: pthread_cond_timedwait failing in 1.9.1-p0 thread tests on HP-UX 11i v2
* Bug #1342: signal handling on HP-UX
* Bug #1388: cygwin-1.7, gcc4-4.3, and ruby-1.9. make btest #236 test_io.rb Segmentation fault
* Bug #2008: test_io.rb: test 2 fails on FreeBSD
* Feature #3719: open-uri should allow redirects from http to https
* Bug #3600: HP-UX compilation
* Feature #3685: Struct does not define #to_ary, needed for implicit-splat.
* Bug #3434: Specs for coercion?
* Feature #6693: Don't warn for unused variables starting with _
* Bug #7092: StringScanner start-of-line matches false positives, while lookbehind for a newline gives false negatives
* Bug #7100: WEBrick::HTTPServer.new で BindAddress を指定しない場合に必ず警告が記録される
* Bug #7310: URI::FTP API inconsistency
* Feature #7712: Add .txt extensions to all plain-text documentation files for Windows users
* Bug #8728: strio_substr can put invalid pointer into substring
* Feature #9330: [PATCH 0/3] avoid redundant fcntl/fstat syscalls for cloexec sockets
* Feature #7068: ability to deactivate Hash#compare_by_identity()
* Feature #7596: Find::find should not silently ignores errors
* Feature #5010: Add Slop(-like) in stdlib and deprecate current OptionParser API
* Bug #10143: JSON module does not conform to RFC 7159
* Feature #3901: WIN32OLE_VARIANT.new method lacks consistency
* Bug #15407: bundle, bundler, irb, rdoc, ri commands broken if --program-suffix configure option is used
* Feature #4233: autoload Can't Require Gems
* Feature #14930: sample/trick2018
* Feature #14316: Update Status Code classes
* Feature #2080: Proc#to_source, Method#to_source
* Feature #3809: allow multiple set_trace_func() calls
* Feature #836: Patches for StringScanner, adding #size, #captures and #values_at
* Feature #3450: Format Strings with Named Arguments & Hash#default
* Feature #3653: Diferential behaviour of positives and negatives ranges as subindex of string or arrays.
* Feature #3916: Add flag to ruby to make warnings fatal.
* Feature #4052: File.lutime Patch
* Feature #14318: Speedup `Proc#call` to mimic `yield`
* Bug #14335: block.call should respect redefinition of Proc#call
* Bug #6696: [PATCH] ERB::Util.url_encode should not escape unreserved characters
* Feature #3269: BigMath.tan がない
* Bug #15437: 正規表現の名前付きキャプチャでASCII以外の大文字で定義したクラスが上書きされる
* Feature #2074: json の j や jj は module_function にするべき？
* Feature #12912: An endless range `(1..)`
* Bug #5240: Hang when using threads + forks on Debian GNU/kFreeBSD
* Bug #3841: RubyVM::InstructionSequence.to_a() and disasm() do not work properly for "for <var> in <list>"
* Bug #4379: [patch] eval(s, b, "(eval)", n) discards location
* Bug #4492: Segfault on successive stack overflows
* Feature #4589: add Queue#each() method and include Enumerable
* Bug #4630: PROCDEBUG to non-zero values causes segmentation faults in check_env in trunk
* Bug #5719: Hash::[] can't handle 100000+ args
* Bug #7356: ruby-2.0.0-preview1 で adlint-2.6.10 が性能劣化
* Feature #7424: an embedded Ruby interpreter doesn't get the full Ruby environment unless it calls ruby_process_options() (which is not documented)
* Feature #8639: Add Queue#each
* Bug #10540: Yielded fibers do not execute ensure blocks
* Feature #13784: Add Enumerable#filter as an alias of Enumerable#select
* Bug #15332: coverage and InstructionSequence regression
* Feature #6129: String#each_lineにおけるmemmem()の利用
* Feature #2968: 数値の正負を返すメソッド
* Feature #614: instance_method(ancestor)
* Feature #908: Should be an easy way of reading N characters from am I/O stream
* Feature #3711: IPAddr must not make DNS lookups via IPSocket.getaddress
* Feature #14043: Introduce Process.last_status as an alias for $?
* Bug #14324: Should Exception#full_message include escape sequences?
* Feature #7526: infinit loop in Registry::each_value
* Feature #1873: MatchData#[]: Omits All But Last Captures Corresponding to the Same Named Group
* Feature #14235: Merge MJIT infrastructure with conservative JIT compiler
* Feature #5588: add negation flag (v) to Regexp
* Bug #14229: An exception in eval has strange message
* Bug #15440: Freeze hash literals embedded in duphash instructions
* Feature #3072: Classes Inheriting from Data
* Feature #14250: Make `$SAFE` process global state and allow to set 0 again
* Feature #7280: How to set filesystem encoding
* Bug #4673: URI::Generic registry is not properly set.
* Bug #6121: [[Ruby 1.9:]] Etc.sysconfdir hides sysconfdir on windows
* Bug #3337: MS-DOS device names are identified as readable_real
* Bug #9258: Fix bugreport URL in error.c
* Feature #855: HTTP/1.1 fixes and other enhancements to webrick
* Feature #2034: Consider the ICU Library for Improving and Expanding Unicode Support
* Bug #5468: IPSocket#valid_v6? in ipaddr.rb contains incorrect regexps
* Feature #2152: Split functionality of Float#inspect and Float#to_s
* Feature #4151: Enumerable#categorize
* Feature #2740: Extend const_missing to pass in the nesting
* Bug #7541: Can't use Ruby 2.0.0 as as BASERUBY
* Bug #10630: ERB tags nested in escaped blocks are skipped
* Feature #15287: New TracePoint events to support loading features
* Feature #14329: Speedup `block.call` where `block` is passed block parameter.
* Feature #14330: Speedup `block.call` where `block` is passed block parameter.
* Bug #14420: [BUG] Unnormalized Fixnum value on Rational#hash.to_s
* Bug #15288: RUBY_DEBUG=gc_stress dumps core
* Bug #14439: build failed on NetBSD 7.1 with MJIT
* Bug #14457: --jit outputs error when script changes $TMPDIR
* Feature #14256: Deprecate $SAFE support in ERB and let ERB.new take keyword arguments for it
* Bug #14552: Kernel#Integer can return a non-Integer object.
* Feature #15022: Oneshot coverage
* Bug #15343: String#each_grapheme_cluster wrongly splits some emoji (genie, zombie, wrestling)
* Feature #14697: Introducing Range#% as an alias to Range#step
* Feature #14575: Switch Range#=== to use cover? instead of include?
* Feature #14857: collect malloc info
* Feature #15341: Provide emoji version as RbConfig::CONFIG['UNICODE_EMOJI_VERSION']
* Bug #14858: Introduce 2nd GC heap named Transient heap
* Feature #14739: Improve fiber yield/resume performance
* Bug #14782: binding.eval("proc") with &:to_s dumps core
* Bug #14847: `clone` can generate strange objects
* Bug #14840: `warning: constant Net::ProtoServerError is deprecated` only via net/http
* Feature #14802: Update Unicode data to Unicode Version 11.0.0
* Feature #14832: Net::ReadTimeout and Net::WriteTimeout should tell the cause socket
* Bug #14699: Subtle behaviors with endless range
* Feature #14878: Add command line argument to deactivate JIT
* Feature #14830: RubyVM::MJIT.pause / RubyVM::MJIT.resume
* Bug #14898: test/lib/test/unit/parallel.rb: TestSocket#test_timestamp stuck sometimes
* Feature #15182: Update extended grapheme cluster implementation for Unicode 11
* Bug #15362: [PATCH] Avoid GCing dead stack after switching away from a fiber
* Feature #15317: How to deal with obsolete property values in Unicode 11.0.0
* Feature #15289: Accept "target" keyword on `TracePoint#enable`
* Feature #3591: Adding Numeric#divisor? (Have working implementation)
* Feature #7816: Don't invalidate method caches when defining a new method on a class without subclasses
* Bug #7865: A required file is not added to $LOADED_FEATURES until after it has run