Command ng update not working

[hpawe01]

OS

Linux Ubuntu 16.04 LTS

Versions

angular-cli: 1.0.0-beta.26
node: 4.7.2
os: linux x64
@angular/common: 2.4.5
@angular/compiler: 2.4.5
@angular/core: 2.4.5
@angular/forms: 2.4.5
@angular/http: 2.4.5
@angular/platform-browser: 2.4.5
@angular/platform-browser-dynamic: 2.4.5
@angular/router: 3.4.5
@angular/compiler-cli: 2.4.5

Repro steps

ng new cli-test
cd cli-test
ng update

The log given by the failure

The specified command update is invalid. For available options, see 'ng help'.

Mention any other details that might be useful.

I noticed this behavior when I updated my angular-cli version from beta.25.5 to beta.26 (https://github.com/angular/angular-cli#updating-angular-cli).
I thought this was working with the previous angular-cli version, but with beta.25.5 I get the same message.

[danielsogl]

They die not released this Feature with the Last Beta. Wait for Beta 27.
They commited this Feature today.

[marcoturi]

I'm getting the same error, migrating to beta 30 from 26

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