This page summarizes the changes between tagged releases of Go. For full details, see the Mercurial change log.
++build: $GOBIN should no longer be required in $PATH (thanks Devon H. O'Dell), + new package target "make bench" to run benchmarks +8g: faster float -> uint64 conversion (thanks Evan Shaw) +5g, 6g, 8g: + clean opnames.h to avoid stale errors (thanks Yongjian Xu), + a handful of small compiler fixes +5g, 6g, 8g, 5l, 6l, 8l: ignore $GOARCH, which is implied by name of tool +6prof: support for writing input files for google-perftools's pprof +asn1: fix a few structure-handling bugs +cgo: many bug fixes (thanks Devon H. O'Dell) +codereview: repeated "hg mail" sends "please take another look" +gob: reserve ids for future expansion +godoc: distinguish HTML generation from plain text HTML escaping (thanks Roger Peppe) +gofmt: minor bug fixes, removed -oldprinter flag +http: add CanonicalPath (thanks Ivan Krasin), + avoid header duplication in Response.Write, + correctly escape/unescape URL sections +io: new interface ReadByter +json: better error, pointer handling in Marshal (thanks Ivan Krasin) +libmach: disassembly of FUCOMI, etc (thanks Evan Shaw) +math: special cases for most functions and 386 hardware Sqrt (thanks Charles Dorian) +misc/dashboard: beginning of a build dashboard at godashboard.appspot.com. +misc/emacs: handling of new semicolon rules (thanks Austin Clements), + empty buffer bug fix (thanks Kevin Ballard) +misc/kate: highlighting improvements (tahnks Evan Shaw) +os/signal: add signal names: signal.SIGHUP, etc (thanks David Symonds) +runtime: preliminary Windows support (thanks Hector Chu), + preemption polling to reduce garbage collector pauses +scanner: new lightweight scanner package +template: bug fix involving spaces before a delimited block +test/bench: updated timings +time: new Format, Parse functions ++