Current File : //opt/cpanel/ea-ruby24/root/usr/share/ri/system/page-NEWS-2_2_0.ri
U:RDoc::TopLevel[ i I"NEWS-2.2.0:EFcRDoc::Parser::Simpleo:RDoc::Markup::Document: @parts['S:RDoc::Markup::Heading:
leveli: textI"NEWS for Ruby 2.2.0;To: RDoc::Markup::BlankLine o: RDoc::Markup::Paragraph;[I"JThis document is a list of user visible feature changes made between ;TI"#releases except for bug fixes.;T@
o;
;[I"DNote that each entry is kept so brief that no reason behind or ;TI"Ireference information is supplied with. For a full list of changes ;TI"=with all sufficient information, see the ChangeLog file.;T@
S; ;
i; I"$Changes since the 2.1.0 release;T@
S; ;
i; I"Language changes;T@
o:RDoc::Markup::Verbatim;[I"nil/true/false
;TI": nil/true/false objects are frozen. [Feature #8923]
;TI"
;TI"Hash literal
;TI"E Symbol key followed by a colon can be quoted. [Feature #4276]
;TI"
;TI"default argument
;TI"Efixed a very longstanding bug that an optional argument was not
;TI">accessible in its default value expression. [Bug #9593]
;T: @format0S; ;
i; I"1Core classes updates (outstanding ones only);T@
o;;[II"
Binding
;TI" New methods:
;TI"! Binding#local_variables
;TI" Binding#receiver
;TI"
;TI" Dir
;TI" New methods:
;TI" Dir#fileno
;TI"
;TI"Enumerable
;TI" New methods:
;TI" Enumerable#slice_after
;TI" Enumerable#slice_when
;TI" Extended methods:
;TI"J min, min_by, max and max_by supports optional argument to return
;TI" multiple elements.
;TI"
;TI" Float
;TI" New methods:
;TI" Float#next_float
;TI" Float#prev_float
;TI"
;TI"
File
;TI" New methods:
;TI" File.birthtime
;TI" File#birthtime
;TI"
;TI"File::Stat
;TI" New methods:
;TI" File::Stat#birthtime
;TI"
;TI"GC
;TI"H GC.latest_gc_info returns :state to represent current GC status.
;TI" Improvements
;TI"F Introduce incremental marking for major GC. [Feature #10137]
;TI"
;TI"IO
;TI" Improvements
;TI"T IO#read_nonblock and IO#write_nonblock for pipes on Windows are supported.
;TI"
;TI" Kernel
;TI" New methods:
;TI" Kernel#itself
;TI" Improvements
;TI"P Kernel#throw raises UncaughtThrowError, subclass of ArgumentError when
;TI"J there is no corresponding catch block, instead of ArgumentError.
;TI"
;TI"
Process
;TI" Extended method:
;TI"Q Process execution methods such as Process.spawn opens the file in write
;TI". mode for redirect from [:out, :err].
;TI"
;TI" String
;TI" New methods:
;TI"" String#unicode_normalize
;TI"# String#unicode_normalize!
;TI"$ String#unicode_normalized?
;TI"
;TI" Symbol
;TI" Improvements
;TI"> Most symbols which are returned by String#to_sym and
;TI"$ String#intern are GC-able.
;TI"
;TI" Method
;TI" New methods:
;TI"7 Method#curry([arity]) returns a curried Proc.
;TI"S Method#super_method returns a Method of superclass, which would be called
;TI" when super is used.
;T;0S; ;
i; I"DCore classes compatibility issues (excluding feature bug fixes);T@
o;;[-I"Enumerable
;TI"> Enumerable#slice_before's state management deprecated.
;TI"7 Enumerable#chunk's state management deprecated.
;TI"
;TI"GC
;TI" incompatible changes:
;TI"1 Rename GC.stat entries. [Feature #9924]
;TI"r See https://docs.google.com/spreadsheets/d/11Ua4uBr6o0k-nORrZLEIIUkHJ9JRzRR0NyZfrhEEnc8/edit?usp=sharing
;TI"
;TI"
Hash
;TI" incompatible changes:
;TI"C Change overriding policy for duplicated key. [Bug #10315]
;TI"L { **hash1, **hash2 } contains values of hash2 for duplicated keys.
;TI"
;TI"IO
;TI" incompatible changes:
;TI"R When flushing file IO with IO#flush, you cannot assume that the metadata
;TI"L of the file is updated immediately. On some platforms (especially
;TI"I Windows), it is delayed until the filesystem load is decreased.
;TI"B Use IO#fsync if you want to guarantee updating metadata.
;TI"
;TI"
Math
;TI" incompatible changes:
;TI"O Math.log now raises Math::DomainError instead of returning NaN if the
;TI"N base is less than 0, and returns NaN instead of -infinity if both of
;TI" two arguments are 0.
;TI"K Math.atan2 now returns values like as expected by C99 if both two
;TI"! arguments are infinity.
;TI"
;TI"
Proc
;TI" incompatible changes:
;TI"K ArgumentError is no longer raised when lambda Proc is passed as a
;TI"N block, and the number of yielded arguments does not match the formal
;TI"M arguments of the lambda, if just an array is yielded and its length
;TI" matches.
;TI"
;TI"
Process
;TI"O Process execution methods such as Process.spawn opens the file in write
;TI", mode for redirect from [:out, :err].
;TI"4 Before Ruby 2.2, it was opened in read mode.
;T;0S; ;
i; I"+Stdlib updates (outstanding ones only);T@
o;;[GI"Continuation
;TI". callcc is obsolete. use Fiber instead.
;TI"
;TI" Digest
;TI"
;TI"G Digest() should now be thread-safe. If you have a problem with
;TI"G regard to on-demand loading under a multi-threaded environment,
;TI"H preload "digest " modules on boot or use this method instead of
;TI"' directly referencing Digest::*.
;TI"A Digest::HMAC has been removed just as previously noticed.
;TI"
;TI"DL
;TI"C DL has been removed from stdlib. Please use Fiddle instead!
;TI"
;TI" Etc
;TI" New methods:
;TI" Etc.uname
;TI" Etc.sysconf
;TI" Etc.confstr
;TI" IO#pathconf
;TI" Etc.nprocessors
;TI"
;TI"Find, Pathname
;TI" Extended methods:
;TI"> find method accepts "ignore_error" keyword argument.
;TI"
;TI" Matrix
;TI" New methods:
;TI"H Matrix#first_minor(row, column) returns the submatrix obtained
;TI"3 by deleting the specified row and column.
;TI"I Matrix#cofactor(row, column) returns the (row, column) cofactor
;TI"S which is obtained by multiplying the first minor by (-1)**(row + column).
;TI"= Matrix#adjugate returns the adjugate of the matrix.
;TI"P hstack and vstack are new instance and class methods to stack matrices
;TI"& horizontally and vertically.
;TI"T Matrix#laplace_expansion(row_or_column: num) returns the laplace_expansion
;TI", along the +num+ -th row or column.
;TI"I Vector.basis(size:, index:) returns the specified basis vector.
;TI"4 Unary - and + added for Vector and Matrix.
;TI"C Vector#cross_product generalized to arbitrary dimensions.
;TI"R Vector#dot and #cross are aliases for #inner_product and #cross_product.
;TI"? Vector#angle_with returns the angle with its argument
;TI"Q New instance and class method independent? to test linear independence.
;TI"
;TI"Pathname
;TI", Pathname#/ is aliased to Pathname#+.
;TI" New methods:
;TI" Pathname#birthtime
;TI"
;TI"
Rake
;TI"< Updated to Rake 10.4.0. For full release notes see:
;TI"
;TI"E http://docs.seattlerb.org/rake/History_rdoc.html#label-10.4.0
;TI"
;TI"RubyGems
;TI"? Updated to RubyGems 2.4.2. For full release notes see:
;TI"
;TI"V http://docs.seattlerb.org/rubygems/History_txt.html#label-2.4.2+%2F+2014-10-01
;TI"
;TI" TSort
;TI"E TSort.tsort_each, TSort.each_strongly_connected_component and
;TI"M TSort.each_strongly_connected_component_from returns an enumerator if
;TI" no block given.
;TI"
;TI" XMLRPC
;TI"8 Added new parser class named LibXMLStreamParser.
;T;0S; ;
i; I">Stdlib compatibility issues (excluding feature bug fixes);T@
o;;[9I"lib/mathn.rb
;TI"0 Show deprecated warning [Feature #10169]
;TI"
;TI"!ext/date/lib/date/format.rb
;TI"( Removed because it's empty file.
;TI"
;TI" Digest
;TI"` Digest::HMAC has finally ceased to exist. Use OpenSSL::HMAC or an external gem instead.
;TI"
;TI"
time.rb
;TI"K Time.parse, Time.strptime, Time.rfc2822, Time.xmlschema may produce
;TI"" fixed-offset Time objects.
;TI"O It is happen when usual localtime doesn't preserve the offset from UTC.
;TI"6 Time.httpdate produces always UTC Time object.
;TI"D Time.strptime raises ArgumentError when no date information.
;TI"
;TI"lib/rational.rb
;TI"3 Removed because it is deprecated from 2009.
;TI"
;TI"lib/complex.rb
;TI"3 Removed because it is deprecated from 2009.
;TI"
;TI"lib/prettyprint.rb
;TI"" Removed PrettyPrint#first?
;TI"
;TI"lib/minitest/*.rb
;TI"C Removed because it conflicts to minitest 5. [Feature #9711]
;TI"
;TI"lib/test/ *.rb
;TI"N Removed because it conflicts to minitest 5, and it was just an wrapper
;TI"& of minitest 4. [Feature #9711]
;TI"
;TI"
lib/uri
;TI") support RFC 3986. [Feature #2542]
;TI"
;TI"
GServer
;TI"B GServer is extracted to gserver gem. It's unmaintain code.
;TI"
;TI" Logger
;TI"Y Logger::Application is extracted to logger-application gem. It's unmaintain code.
;TI"
;TI".ObjectSpace (after requiring "objspace")
;TI"K ObjectSpace.memsize_of(obj) returns a size includes sizeof(RVALUE).
;TI" [Bug #8984]
;TI"
;TI" Prime
;TI" incompatible changes:
;TI"J Prime.prime? now returns false for negative numbers. This method
;TI"P should not be used to know the number is composite or not. [Bug #7395]
;TI"
;TI" Psych
;TI"0 Removed Psych::EngineManager [Bug #8344]
;T;0S; ;
i; I"3Built-in global variables compatibility issues;T@
S; ;
i; I"C API updates;T@
o;;[KI"/Deprecated APIs removed. [Feature #9502]
;TI"
;TI"&Check_SafeStr -> SafeStringValue
;TI"*rb_check_safe_str -> SafeStringValue
;TI"%rb_quad_pack -> rb_integer_pack
;TI")rb_quad_unpack -> rb_integer_unpack
;TI"Brb_read_check : access struct FILE internal. no replacement.
;TI";rb_struct_iv_get : internal function. no replacement.
;TI"Gstruct rb_blocking_region_buffer : internal type. no replacement.
;TI"Jrb_thread_blocking_region_begin -> rb_thread_call_without_gvl family
;TI"Hrb_thread_blocking_region_end -> rb_thread_call_without_gvl family
;TI"3TRAP_BEG -> rb_thread_call_without_gvl family
;TI"3TRAP_END -> rb_thread_call_without_gvl family
;TI"-rb_thread_select -> rb_thread_fd_select
;TI"9struct rb_exec_arg : internal type. no replacement.
;TI"2rb_exec : internal function. no replacement.
;TI"=rb_exec_arg_addopt : internal function. no replacement.
;TI"<rb_exec_arg_fixup : internal function. no replacement.
;TI";rb_exec_arg_init : internal function. no replacement.
;TI"6rb_exec_err : internal function. no replacement.
;TI"2rb_fork : internal function. no replacement.
;TI"6rb_fork_err : internal function. no replacement.
;TI"9rb_proc_exec_n : internal function. no replacement.
;TI">rb_run_exec_options : internal function. no replacement.
;TI"Brb_run_exec_options_err : internal function. no replacement.
;TI"Drb_thread_blocking_region -> rb_thread_call_without_gvl family
;TI"-rb_thread_polling -> rb_thread_wait_for
;TI"6rb_big2str0 : internal function. no replacement.
;TI"*rb_big2ulong_pack -> rb_integer_pack
;TI";rb_gc_set_params : internal function. no replacement.
;TI"-rb_io_mode_flags -> rb_io_modestr_fmode
;TI"/rb_io_modenum_flags -> rb_io_oflags_fmode
;TI"
;TI"0struct RBignum is hidden. [Feature #6083]
;TI"8Use rb_integer_pack and rb_integer_unpack instead.
;TI"
;TI"2struct RRational is hidden. [Feature #9513]
;TI"6Use rb_rational_num and rb_rational_den instead.
;TI"
;TI"Brb_big_new and rb_big_resize takes a size_t instead of long.
;TI"
;TI"9rb_num2long returns a long instead of SIGNED_VALUE.
;TI"
;TI"=rb_num2ulong returns an unsigned long instead of VALUE.
;TI"
;TI"Fst hash table uses power-of-two sizes for speed [Feature #9425].
;TI"DLookups are 10-25% faster if using appropriate hash functions.
;TI"FHowever, weaknesses in hash distribution can no longer be masked
;TI"Cby prime number-sized tables, so extensions may need to tweak
;TI"1hash functions to ensure good distribution.
;TI"
;TI"Irb_sym2str() added. This is almost same as `rb_id2str(SYM2ID(sym))`
;TI"'but not pinning a dynamic symbol.
;TI"
;TI"?rb_str_cat_cstr() added. This is same as `rb_str_cat2()`.
;TI"
;TI"L`rb_str_substr()` and `rb_str_subseq()` will share middle of a string,
;TI"Ibut not only the end of a string, in the future. Therefore, result
;TI"Fstrings may not be NUL-terminated, `StringValueCStr()` is needed
;TI"2calling to obtain a NUL-terminated C string.
;TI"
;TI"Nrb_tracepoint_new() supports new internal events accessible only from C:
;TI"$ RUBY_INTERNAL_EVENT_GC_ENTER
;TI"# RUBY_INTERNAL_EVENT_GC_EXIT
;TI" r47528
;TI"
;TI"Orb_hash_delete() now does not call the block given to the current method.
;TI"
;TI"Irb_extract_keywords() and rb_get_kwargs() exported. See README.EXT
;TI"for details.
;T;0S; ;
i; I"Build system updates;T@
o;;[I"Hjemalloc is optionally supported via `./configure --with-jemalloc`
;TI"Bjemalloc may be suitable when system malloc is slow or prone
;TI"(to fragmentation. [Feature #9113]
;T;0S; ;
i; I"Implementation changes;T@
o;;[I"GC
;TI"> Most symbols which are returned by String#to_sym and
;TI"3 String#intern are GC-able [Feature #9634]
;TI"F Introduce incremental marking for major GC. [Feature #10137]
;TI"5 Enable lazy sweep on GC caused by malloc().
;TI"
;TI"VM
;TI"= Use frozen string literals for Hash#[] and Hash#[]=
;TI"9 Fast keyword arguments passing [Feature #10440]
;TI"A Allow to receive huge splatted array by a rest argument
;TI" [Feature #10440]
;TI"
;TI"
Process
;TI"N Process creation methods, such as spawn(), uses vfork() system call.
;TI"P vfork() is faster than fork() when the parent process uses huge memory.;T;0:
@file@:0@omit_headings_from_table_of_contents_below0
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