This page summarizes the changes between tagged releases of Go. For full details, see the Mercurial change log.
++There are two small language changes: +* NUL bytes may be rejected in souce files, and the tools do reject them. +* Conversions from string to []int and []byte are defined but not yet implemented. + +Other changes and fixes: +* 5a/6a/8a/5c/6c/8c: remove fixed-size arrays for -I and -D options (thanks Dean Prichard) +* 5c/6c/8c/5l/6l/8l: add -V flag to display version number +* 5c/6c/8c: use "cpp" not "/bin/cpp" for external preprocessor (thanks Giles Lean) +* 8a/8l: Added CMOVcc instructions (thanks Evan Shaw) +* 8l: pe executable building code changed to include import table for kernel32.dll functions (thanks Alex Brainman) +* 5g/6g/8g: bug fixes +* asn1: bug fixes and additions (incl marshalling) +* build: fix build for Native Client, Linux/ARM +* dashboard: show benchmarks, add garbage collector benchmarks +* encoding/pem: add marshalling support +* exp/draw: fast paths for a nil mask +* godoc: support for directories outside $GOROOT +* http: sort header keys when writing Response or Request to wire (thanks Petar Maymounkov) +* math: special cases and new functions (thanks Charles Dorian) +* mime: new package, used in http (thanks Michael Hoisie) +* net: dns bug fix - use random request id +* os: finalize File, to close fd. +* path: make Join variadic (thanks Stephen Weinberg) +* regexp: optimization bug fix +* runtime: misc fixes and optimizations +* syscall: make signature of Umask on OS X, FreeBSD match Linux. (thanks Giles Lean) ++