Rémy Oudompheng
unread,Nov 16, 2012, 2:59:42 AM11/16/12Sign in to reply to author
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to golang-nuts
Hello,
Some days ago I tried to gather a condensed form of Changelog since
people have been asking what was coming in Go 1.1 and I was also
interested in explaining and foreseeing what changes/benefits it would
be bringing. This is of course absolutely not normative in any way.
Most bug fixes are already in Go 1.0.3 so almost none is mentioned.
* Support Linux/ARM in cgo.
* Support NetBSD
* Support FreeBSD/ARM
* Support SWIG
* amd64 ints are now 64 bits.
* Compiler and libraries now conform to Unicode 6.2
spec
* Unicode surrogates are now illegal
* initial BOM is ignored
compiler
* better escape analysis
* more inlining capabilities
* various bug/ICE fixes.
* arm, 386: faster generated code
* arm: remove softfloat code when GOARM=7
* arm: use more registers
* amd64: correct bug with 64 bit to 32 bit truncation
* amd64: better floating-point code
* inline some slice operations
* inline small conversions to interface{}
linker
* add ELF PAX headers to binaries
* support for linking syso files
* support for build ID
runtime
* faster software division on ARM
* race detector
* contention profiler
* precise GC (not yet in tip)
* parallel GC
* lower memory overhead of mem profile
Package changes
--------
archive/tar
* new FileInfoHeader function
archive/zip
* support for ZIP64
bufio
* add ReadFrom, WriteTo methods
* ReadLine is discouraged
bytes, strings
* new Reader.WriteTo method
bytes
* new Buffer.Grow method
* assembly routines for ARM
* Join returns a copy when supplied with a single []byte
compress/flate
* lower memory pressure
crypto/aes
* support AES-NI acceleration
crypto/md5
* performance improvements
crypto/rsa
* reject exponents that don't fit an int32
crypto/x509
* suport for ECDSA
* new DecryptBlock function
debug/elf
* expose Entry
* support for reading DynTag
debug/pe
* support for symbols
encoding/binary
* skip blank struct fields
encoding/gob
* smaller decoder memory footprint
encoding/json
* new Number type
encoding/xml
* handle anonymous pointer fields
fmt
* performance improvement
* honor %d etc. for pointers
go/scanner
* faster
go/parser
* performance improvement
hash/adler32
* performance improvement
image/jpeg
* support 4:4:0 subsampling
* support progressive JPEG decoding
image/png
* performance improvement
* optimize encoding for common image types
io
* new ByteWriter interface
math/big
* JSON marshalling
* performance improvement in Mul, Gcd.
* faster Exp
math
* more assembly routines
net
* IPv6 support on Windows
* new LookupNS
* add UnixConn.CloseRead, CloseWrite
net/http
* cleanup and fixes
net/mail
* more liberal parsing of Date
net/url
* correct URL escaping
* make Encode deterministic
reflect
* new MakeFunc, Select
* new ConvertibleTo, Convert
* Index and Slice accept strings
strconv
* extend fast float parsing/printing to all cases
strings
* faster Replacer
syscall
* various new syscalls
testing
* new Verbose function
* memory allocation stats
text/scanner
* skip initial BOM
text/template
* synxtax addition with parentheses
* spaces are significant
* new keyword nil
time
* change to RFC822 string
* accept .999 in Parse
* faster Format
* panic if UnixNano overflows
* add Time.YearDay method
unicode/utf8
* reject out of range runes.
new package: html (maybe go/types too?)
Tools and commands
------
cgo
* better support for gccgo
go
* join function in go tool template
* -benchmem option to go tool
* better support for gccgo
godoc
* website revamp
gofmt
* simplify s[x:len(s)]
vet
* detect misuse of range variable
yacc
* accept UTF-8 tokens
misc
* new gophertool for Chrome
Rémy.