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Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 223 |
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@@ -1,223 +0,0 @@ -# -*- rdoc -*- - -= NEWS for Ruby 2.3.0 - -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. - -== Changes since the 2.2.0 release - -=== Language changes - -* frozen-string-literal pragma: - * new pragma, frozen-string-literal has been experimentally introduced. - * besides, --enable/--disable=frozen-string-literal options also have - been introduced. - -* safe navigation operator: - - * new method call syntax, `object&.foo', method #foo is called on - `object' if it is not nil. - this is similar to `try!' in Active Support, except: - * method name is syntactically required - obj.try! {} # valid - obj&. {} # syntax error - * arguments are evaluated only if a call is made: - obj.try!(:foo, bar()) # bar() is always evaluated - obj&.foo(bar()) # bar() is conditionally evaluated - * attribute assignment is valid - obj&.attr += 1 - -=== Core classes updates (outstanding ones only) - -* ARGF - - * ARGF.read_nonblock supports `exception: false' like IO#read_nonblock. - [Feature #11358] - -* Array - - * Array#bsearch_index [Feature #10730] - * Array#dig [Feature #11643] - -* Enumerable - - * Enumerable#grep_v is added as inverse version of Enumerable#grep. - [Feature #11049] - * Enumerable#chunk_while [Feature #10769] - -* File - - * File.mkfifo [Feature #11536] - * Add File::TMPFILE corresponding to O_TMPFILE - -* Hash - - * Hash#fetch_values [Feature #10017] - * Hash#dig [Feature #11643] - * Hash#<=, Hash#<, Hash#>=, Hash#> [Feature #10984] - * Hash#to_proc [Feature #11653] - -* IO - - * new mode flag File::SHARE_DELETE is available. - this flag means to permit deleting opened file on Windows, but currently - this affect only files opened as binary. [Feature #11218] - - * new option parameter `flags' is added. - this parameter is bitwise-ORed to oflags generated by normal mode argument. - [Feature #11253] - -* Kernel - - * Kernel#loop, when stopped by a StopIteration exception, returns - what the enumerator has returned instead of nil. [Feature #11498] - -* Module - * Module#deprecate_constant [Feature #11398] - -* NameError - * NameError#receiver is added to take the receiver object. [Feature #10881] - -* Numeric - - * Numeric#positive? and Numeric#negative? are added, which return - true when the receiver is positive and negative respectively. - [Feature #11151] - -* Proc - - * Proc#call (and also #[], #===, #yield) are optimized. - Backtrace doesn't show each methods (show block lines directly). - TracePoint also ignore these calls. [Feature #11569] - -* Thread - * Thread#name, Thread#name= are added to handle thread names [Feature #11251] - -=== Core classes compatibility issues (excluding feature bug fixes) - -* Array - * Array#select!, Array#keep_if, Array#reject!, and Array#delete_if - no longer changes the receiver array instantly every time the - block is called. [Feature #10714] - - * Array#flatten and Array#flatten! no longer try to call #to_ary - method on elements beyond the given level. [Bug #10748] - -* Enumerable - * Enumerable#chunk and Enumerable#slice_before no longer takes the - initial_state argument. [Feature #10958] - Use a local variable instead to maintain a state. - -* File::Stat - * On Windows File::Stat#ino always returned 0, but now returns - BY_HANDLE_FILE_INFORMATION.nFileIndexHigh/Low. - -* IO - * IO#close doesn't raise when the IO object is closed. [Feature #10718] - * IO#each_codepoint raises an exception at incomplete character - before EOF when conversion takes place. [Bug #11444] - -* Module - * Module#define_method and Object.define_singleton_method now - require method body, Proc, Method, or a block, and raise - ArgumentError if no block is given directly. [Bug #11283] - -* pack/unpack (Array/String) - * j and J directives for pointer width integer type. [Feature #11215] - - -=== Stdlib updates (outstanding ones only) - -* Socket - * Socket#connect_nonblock, Socket#accept_nonblock, - TCPServer#accept_nonblock, UNIXServer#accept_nonblock, - BasicSocket#recv_nonblock, BasicSocket#recvmsg_nonblock, - BasicSocket#sendmsg_nonblock all support `exception: false` to return - :wait_readable or :wait_writable symbols instead of raising - IO::WaitReadable or IO::WaitWritable exceptions - * BasicSocket#recv and BasicSocket#recv_nonblock allow an output - String buffer argument like IO#read and IO#read_nonblock to reduce - GC overhead - -* ObjectSpace (objspace) - * ObjectSpace.count_symbols is added. - * ObjectSpace.count_imemo_objects is added. - * ObjectSpace.internal_class_of is added. - * ObjectSpace.internal_super_of is added. - -* OpenSSL - * OpenSSL::SSL::SSLSocket#accept_nonblock and - OpenSSL::SSL::SSLSocket#connect_nonblock supports `exception: false`. - -* Pathname - * Pathname#descend and Pathname#ascend supported blockless form. - [Feature #11052] - -* io/wait - * IO#wait_readable no longer checks FIONREAD, it may be used for - non-bytestream IO such as listen sockets. - -* timeout - * Object#timeout is now warned as deprecated when called. - -* Net::FTP - * Net::FTP#mlst is added. - * Net::FTP#mlsd is added. - -=== Stdlib compatibility issues (excluding feature bug fixes) - -* lib/webrick/utils.rb - * removed unused argument. https://github.com/ruby/ruby/pull/356 - -* lib/drb/drb.rb - * removed unused argument. https://github.com/ruby/ruby/pull/515 - -* lib/base64.rb - * Base64.urlsafe_encode64: added a "padding" option to suppress - the padding character ("="). - * Base64.urlsafe_decode64: now it accepts not only correctly-padded - input but also unpadded input. - -* lib/matrix.rb - * Add Vector#round. https://github.com/ruby/ruby/pull/802 - -* ext/coverage/coverage.c - * Coverage.peek_result: new method to allow coverage to be captured without - stopping the coverage tool. - -* Net::HTTP - * default value of Net::HTTP#open_timeout is now 60 (was nil). - -* Net::Telnet - * Net::Telnet is extracted to net-telnet gem. It's unmaintain code. - -* Rake - * Rake is removed from stdlib. - -=== Built-in global variables compatibility issues - -* $SAFE - * $SAFE=2 and $SAFE=3 are obsolete. If $SAFE is set to 2 or larger, - an ArgumentError is raised. [Feature #5455] - -=== C API updates - -* rb_define_class_id_under() now raises a TypeError exception when the - class is already defined but its superclass does not match the given - superclass, as well as definitions in ruby level. - -* rb_timespec_now() is added to fetch current datetime as struct timespec. - -* rb_time_timespec_new() is added to create a time object with epoch, - nanosecond, and UTC/localtime/time offset arguments. - -=== Build system updates - -=== Implementation changes -* OS/2 is no longer supported -* Borland-C is no longer supported |