which version of Go standard is that?

[anatoly techtonik]

I want to know if my go version supports 1.4 features, but it just shows 4.9.1

$ go version
go version xgcc (Ubuntu 4.9.1-0ubuntu1) 4.9.1 linux/386

???

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gccgo 4:4.9-1ubuntu6
ProcVersionSignature: Ubuntu 3.13.0-55.92-generic 3.13.11-ckt20
Uname: Linux 3.13.0-55-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: i386
CurrentDesktop: Unity
Date: Tue Jun 16 17:32:51 2015
InstallationDate: Installed on 2012-03-12 (1191 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
SourcePackage: gcc-defaults
UpgradeStatus: Upgraded to trusty on 2014-04-18 (423 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Robie Basak (racb)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Since this is not currently actionable by a developer as a bug in Ubuntu, I'm marking this bug as Incomplete.

If you need help operating Go, you can find pointers to get help for this sort of problem here: http://www.ubuntu.com/support/community

Or if you believe that this is really a bug, then you may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem, explain why you believe this is a bug in Ubuntu rather than a problem specific to your system, and then change the bug status back to New.

[anatoly techtonik (techtonik)]

Can you explain why it is not gccgo-go actionable bug?

[Robie Basak (racb)]

It might be something that needs to be sent upstream, I don't know. What action do you expect an Ubuntu developer to take on the gccgo-go Ubuntu packaging to fix this?

[anatoly techtonik (techtonik)]

I expect Ubuntu developers to maintain connection with upstream through Ubuntu packaging tools, so that this upstream can decide if is it their issue or not.