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# -*- rd -*-
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 1.9.2 release
=== License
* Ruby's License is changed from a dual license with GPLv2
to a dual license with 2-clause BSDL.
=== C API updates
* rb_scan_args() is enhanced with support for option hash argument
* ruby_vm_at_exit() added. This enables extension libs to hook a VM
=== Library updates (outstanding ones only)
* builtin classes
* new methods:
* ARGF.print
* ARGF.printf
* ARGF.putc
* ARGF.puts
* ARGF.read_nonblock
* ARGF.to_write_io
* ARGF.write
* Array
* extended method:
* Array#pack supports endian modifiers
* Encoding
* new encodings:
* CP950
* CP951
* UTF-16
* UTF-32
* change alias:
* SJIS is Windows-31J
* File
* new constant:
* File::NULL
name of NULL device.
* IO
* extended method:
* IO#putc supports multibyte characters
* new methods:
* IO#advise
* IO.write(name, string, [offset] )
Write `string` to file `name`.
Opposite with
* IO.binwrite(name, string, [offset] )
binary virsion of IO.write.
* Kernel
* Kernel#respond_to? now returns false for protected methods.
* move #__id__ to BasicObject.
* Module
* new methods:
* Module#private_constant
* Module#public_constant
* String
* extended method:
* String#unpack supports endian modifiers
* new method:
* String#prepend
* String#byteslice
* Time
* extended method:
* Time#strftime supports %:z and %::z.
* Process
* Process#maxgroups and Process#maxgroups= now raise NotImplementedError if
the platform don't support supplementary groups concept.
* bigdecimal
* Kernel.BigDecimal and now accept instances of Integer,
Rational, and Float. If you pass a Rational or a Float to them, you must
specify the precision to produce the digits of a BigDecimal.
* The behavior of BigDecimal#coerce with a Rational is changed. It uses
the precision of the receiver BigDecimal to produce the digits of a
BigDecimal from the given Rational.
* io/console
* new methods:
* IO#noecho {|io| }
* IO#echo=
* IO#echo?
* IO#raw {|io| }
* IO#raw!
* IO#getch
* IO#winsize
* IO.console
* net/http
* SNI (Server Name Indication) supported for HTTPS.
* Allow to configure to wait server returning '100 continue' response
before sending HTTP request body. Set Net::HTTP#continue_timeout AND pass
'expect' => '100-continue' to a extra HTTP header.
For example, the following code sends HTTP header and waits for getting
'100 continue' response before sending HTTP request body. When 0.5 [sec]
timeout occurs or the server send '100 continue', the client sends HTTP
request body.
http.continue_timeout = 0.5
http.request_post('/continue', 'body=BODY', 'expect' => '100-continue')
* openssl
* PKey::RSA and PKey::DSA now use the generic X.509 encoding scheme
(e.g. used in a X.509 certificate's Subject Public Key Info) when
exporting public keys to DER or PEM. Backward compatibility is
ensured by (already existing) fallbacks during creation.
* OpenSSL::ASN1::Constructive#new and OpenSSL::ASN1::Primitive#new
(and the constructors of their sub-classes) will no longer force
tagging to be set to :EXPLICIT when tag and/or tag_class are passed
as parameters. tagging must be set explicitly.
* Support for infinite length encodings via infinite_length attribute.
* optparse
* support for bash/zsh completion.
* RDoc
* RDoc has been upgraded to RDoc 3.6.1. For full release notes see
* rexml
* [incompatible] support Ruby native encoding mechanism
and iconv dependency is dropped. This means encoding
methods (Document#encoding, XMLDecl#encoding,
Output#encoding and Source#encoding) return an Encoding
object instead of an encoding name.
* Rubygems
* Rubygems has been upgraded to rubygems 1.5.0. For full release notes see
* stringio
* extended method:
* StringIO#set_encoding can get 2nd argument and optional hash.
* test/unit
* New arguments:
* -j N, --jobs=N: Allow run N testcases at once.
* --jobs-status: Show status of jobs when parallel running.
* --no-retry: Don't retry testcases which failed when parallel running.
* --ruby=RUBY: path to ruby for job(worker) process. optional.
* uri
* new methods:
* URI::Generic#hostname
* URI::Generic#hostname=
* webrick
* new method:
* WEBrick::HTTPRequest#continue for generating '100 continue' response.
* new logging directive:
* %{remote}p for remote (client) port number.
* yaml
* The default YAML engine is now Psych. You may downgrade to syck by setting
YAML::ENGINE.yamler = 'syck'.
* zlib
* new methods:
* Zlib.deflate
* Zlib.inflate
* FileUtils
* extended method:
* FileUtils#chmod supports symbolic mode argument.
=== Language changes
* Regexps now support Unicode 6.0. (new characters and scripts)
* [experimental] Regexps now support Age property.
Unlike Perl, current implementation takes interpretation of the
interpretation of UTS #18.
* Turning on/off indentation warnings with directives.
("# -*- warn-indent: true -*-" / "# -*- warn-indent: false -*-")
=== Compatibility issues (excluding feature bug fixes)
* Kernel#respond_to?
See above.
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