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R=r CC=golang-dev https://golang.org/cl/195080
230 lines
10 KiB
HTML
230 lines
10 KiB
HTML
<!-- Release History -->
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<h2 id="Releases">Release History</h2>
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<p>This page summarizes the changes between tagged releases of Go.
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For full details, see the <a href="http://code.google.com/p/go/source/list">Mercurial change log</a>.</p>
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<h3 id="2010-01-27">2010-01-27</h3>
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<pre>
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There are two small language changes: the meaning of chan <- chan int
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is now defined, and functions returning functions do not need to
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parenthesize the result type.
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There is one significant implementation change: the compilers can
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handle multiple packages using the same name in a single binary.
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In the gc compilers, this comes at the cost of ensuring that you
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always import a particular package using a consistent import path.
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In the gccgo compiler, the cost is that you must use the -fgo-prefix
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flag to pass a unique prefix (like the eventual import path).
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5a/6a/8a: avoid use of fixed-size buffers (thanks Dean Prichard)
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5g, 6g, 8g: many minor bug fixes
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bufio: give Writer.WriteString same signature as bytes.Buffer.WriteString.
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container/list: PushFrontList, PushBackList (thanks Jan Hosang)
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godoc: trim spaces from search query (thanks Christopher Wedgwood)
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hash: document that Sum does not change state, fix crypto hashes
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http: bug fixes, revision of Request/Response (thanks Petar Maymounkov)
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math: more handling of IEEE 754 special cases (thanks Charles Dorian)
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misc/dashboard: new build dashboard
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net: allow UDP broadcast,
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use /etc/hosts to resolve names (thanks Yves Junqueira, Michael Hoisie)
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netchan: beginnings of new package for connecting channels across a network
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os: allow FQDN in Hostname test (thanks Icarus Sparry)
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reflect: garbage collection bug in Call
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runtime: demo of Go on raw (emulated) hw in runtime/pchw,
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performance fix on OS X
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spec: clarify meaning of chan <- chan int,
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func() func() int is allowed now,
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define ... T (not yet implemented)
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template: can use interface values
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time: fix for +0000 time zone,
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more robust tick.Stop.
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xgb: support for authenticated connections (thanks Firmansyah Adiputra)
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xml: add Escape (thanks Stephen Weinberg)
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</pre>
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<h3 id="2010-01-13">2010-01-13</h3>
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<pre>
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This release is mainly bug fixes with a little new code.
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There are no language changes.
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build: $GOBIN should no longer be required in $PATH (thanks Devon H. O'Dell),
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new package target "make bench" to run benchmarks
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8g: faster float -> uint64 conversion (thanks Evan Shaw)
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5g, 6g, 8g:
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clean opnames.h to avoid stale errors (thanks Yongjian Xu),
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a handful of small compiler fixes
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5g, 6g, 8g, 5l, 6l, 8l: ignore $GOARCH, which is implied by name of tool
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6prof: support for writing input files for google-perftools's pprof
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asn1: fix a few structure-handling bugs
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cgo: many bug fixes (thanks Devon H. O'Dell)
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codereview: repeated "hg mail" sends "please take another look"
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gob: reserve ids for future expansion
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godoc: distinguish HTML generation from plain text HTML escaping (thanks Roger Peppe)
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gofmt: minor bug fixes, removed -oldprinter flag
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http: add CanonicalPath (thanks Ivan Krasin),
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avoid header duplication in Response.Write,
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correctly escape/unescape URL sections
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io: new interface ReadByter
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json: better error, pointer handling in Marshal (thanks Ivan Krasin)
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libmach: disassembly of FUCOMI, etc (thanks Evan Shaw)
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math: special cases for most functions and 386 hardware Sqrt (thanks Charles Dorian)
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misc/dashboard: beginning of a build dashboard at godashboard.appspot.com.
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misc/emacs: handling of new semicolon rules (thanks Austin Clements),
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empty buffer bug fix (thanks Kevin Ballard)
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misc/kate: highlighting improvements (tahnks Evan Shaw)
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os/signal: add signal names: signal.SIGHUP, etc (thanks David Symonds)
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runtime: preliminary Windows support (thanks Hector Chu),
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preemption polling to reduce garbage collector pauses
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scanner: new lightweight scanner package
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template: bug fix involving spaces before a delimited block
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test/bench: updated timings
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time: new Format, Parse functions
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</pre>
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<h3 id="2010-01-05">2010-01-05</h3>
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<pre>
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This release is mainly bug fixes. There are no language changes.
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6prof: now works on 386
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8a, 8l: add FCOMI, FCOMIP, FUCOMI, and FUCOMIP (thanks Evan Shaw)
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big: fix ProbablyPrime on small numbers
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container/vector: faster []-based implementation (thanks Jan Mercl)
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crypto/tls: extensions and Next Protocol Negotiation
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gob: one encoding bug fix, one decoding bug fix
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image/jpeg: support for RST markers
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image/png: support for transparent paletted images
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misc/xcode: improved support (thanks Ken Friedenbach)
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net: return nil Conn on error from Dial (thanks Roger Peppe)
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regexp: add Regexp.NumSubexp (thanks Peter Froehlich)
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syscall: add Nanosleep on FreeBSD (thanks Devon H. O'Dell)
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template: can use map in .repeated section
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There is now a public road map, in the repository and online
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at <a href="http://golang.org/doc/devel/roadmap.html">http://golang.org/doc/devel/roadmap.html</a>.
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</pre>
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<h3 id="2009-12-22">2009-12-22</h3>
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<pre>
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Since the last release there has been one large syntactic change to
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the language, already discussed extensively on this list: semicolons
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are now implied between statement-ending tokens and newline characters.
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See http://groups.google.com/group/golang-nuts/t/5ee32b588d10f2e9 for
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details.
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By default, gofmt now parses and prints the new lighter weight syntax.
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To convert programs written in the old syntax, you can use:
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gofmt -oldparser -w *.go
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Since everything was being reformatted anyway, we took the opportunity to
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change the way gofmt does alignment. Now gofmt uses tabs at the start
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of a line for basic code alignment, but it uses spaces for alignment of
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interior columns. Thus, in an editor with a fixed-width font, you can
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choose your own tab size to change the indentation, and no matter what
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tab size you choose, columns will be aligned properly.
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In addition to the syntax and formatting changes, there have been many
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smaller fixes and updates:
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6g,8g,5g: many bug fixes, better registerization,
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build process fix involving mkbuiltin (thanks Yongjian Xu),
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method expressions for concrete types
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8l: support for Windows PE files (thanks Hector Chu)
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bytes: more efficient Buffer handling
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bytes, strings: new function Fields (thanks Andrey Mirtchovski)
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cgo: handling of enums (thanks Moriyoshi Koizumi),
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handling of structs with bit fields, multiple files (thanks Devon H. O'Dell),
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installation of .so to non-standard locations
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crypto/sha256: new package for SHA 256 (thanks Andy Davis)
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encoding/binary: support for slices of fixed-size values (thanks Maxim Ushakov)
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exp/vector: experimental alternate vector representation (thanks Jan Mercl)
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fmt: %p for chan, map, slice types
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gob: a couple more bug fixes
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http: support for basic authentication (thanks Ivan Krasin)
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image/jpeg: basic JPEG decoder
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math: correct handling of Inf and NaN in Pow (thanks Charles Dorian)
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misc/bash: completion file for bash (thanks Alex Ray)
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os/signal: support for handling Unix signals (thanks David Symonds)
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rand: Zipf-distributed random values (thanks William Josephson)
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syscall: correct error return bug on 32-bit machines (thanks Christopher Wedgwood)
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syslog: new package for writing to Unix syslog daemon (thanks Yves Junqueira)
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template: will automatically invoke niladic methods
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time: new ISO8601 format generator (thanks Ben Olive)
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xgb: converted generator to new syntax (thanks Tor Andersson)
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xml: better mapping of tag names to Go identifiers (thanks Kei Son),
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better handling of unexpected EOF (thanks Arvindh Rajesh Tamilmani)
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</pre>
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<h3 id="2009-12-09">2009-12-09</h3>
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<pre>
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Since the last release there are two changes to the language:
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* new builtin copy(dst, src) copies n = min(len(dst), len(src))
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elements to dst from src and returns n. It works correctly
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even if dst and src overlap. bytes.Copy is gone.
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Convert your programs using:
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gofmt -w -r 'bytes.Copy(d, s) -> copy(d, s)' *.go
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* new syntax x[lo:] is shorthand for x[lo:len(x)].
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Convert your programs using:
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gofmt -w -r 'a[b:len(a)] -> a[b:]' *.go
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In addition, there have been many smaller fixes and updates:
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* 6g/8g/5g: many bug fixes
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* 8g: fix 386 floating point stack bug (thanks Charles Dorian)
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* all.bash: now works even when $GOROOT has spaces (thanks Sergio Luis O. B. Correia),
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starting to make build work with mingw (thanks Hector Chu),
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FreeBSD support (thanks Devon O'Dell)
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* big: much faster on 386.
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* bytes: new function IndexByte, implemented in assembly
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new function Runes (thanks Peter Froehlich),
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performance tuning in bytes.Buffer.
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* codereview: various bugs fixed
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* container/vector: New is gone; just declare a Vector instead.
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call Resize to set len and cap.
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* cgo: many bug fixes (thanks Eden Li)
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* crypto: added MD4 (thanks Chris Lennert),
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added XTEA (thanks Adrian O'Grady).
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* crypto/tls: basic client
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* exp/iterable: new functions (thanks Michael Elkins)
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* exp/nacl: native client tree builds again
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* fmt: preliminary performance tuning
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* go/ast: more powerful Visitor (thanks Roger Peppe)
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* gob: a few bug fixes
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* gofmt: better handling of standard input, error reporting (thanks Fazlul Shahriar)
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new -r flag for rewriting programs
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* gotest: support for Benchmark functions (thanks Trevor Strohman)
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* io: ReadFile, WriteFile, ReadDir now in separate package io/ioutil.
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* json: new Marshal function (thanks Michael Hoisie),
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better white space handling (thanks Andrew Skiba),
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decoding into native data structures (thanks Sergey Gromov),
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handling of nil interface values (thanks Ross Light).
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* math: correct handling of sin/cos of large angles
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* net: better handling of Close (thanks Devon O'Dell and Christopher Wedgwood)
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support for UDP broadcast (thanks Jonathan Wills),
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support for empty packets
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* rand: top-level functions now safe to call from multiple goroutines
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(thanks Roger Peppe).
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* regexp: a few easy optimizations
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* rpc: better error handling, a few bug fixes
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* runtime: better signal handling on OS X, malloc fixes,
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global channel lock is gone.
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* sync: RWMutex now allows concurrent readers (thanks Péter Szabó)
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* template: can use maps as data (thanks James Meneghello)
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* unicode: updated to Unicode 5.2.
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* websocket: new package (thanks Fumitoshi Ukai)
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* xgb: preliminary X Go Bindings (thanks Tor Andersson)
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* xml: fixed crash (thanks Vish Subramanian)
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* misc: bbedit config (thanks Anthony Starks),
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kate config (thanks Evan Shaw)
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</pre>
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