angular - What steps are requried to upgrade from Angular2 RC2 to RC4 -

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what steps required upgrade existing angular2 rc2 app rc4? i've updated package.json file (see below) , have run npm update on root folder still references old versions of angular packages in node modules folder rc2.

ive checked change logs , release notes , searched google no avail. app runs crashes when referencing new ngmodel related form functionality wasn't working in rc2. im trying update rc4 use new forms module see if resolves underlying form issue.

original

 "dependencies": {     "@angular/common":  "2.0.0-rc.2",     "@angular/compiler":  "2.0.0-rc.2",     "@angular/core":  "2.0.0-rc.2",     "@angular/forms": "0.1.0",     "@angular/http":  "2.0.0-rc.2",     "@angular/platform-browser":  "2.0.0-rc.2",     "@angular/platform-browser-dynamic":  "2.0.0-rc.2",     "@angular/router":  "3.0.0-alpha.7",     "@angular/router-deprecated":  "2.0.0-rc.2",     "@angular/upgrade":  "2.0.0-rc.2",

modified

 "dependencies": {     "@angular/common": "2.0.0-rc.4",     "@angular/compiler": "2.0.0-rc.4",     "@angular/core": "2.0.0-rc.4",     "@angular/forms": "0.2.0",     "@angular/http": "2.0.0-rc.4",     "@angular/platform-browser": "2.0.0-rc.4",     "@angular/platform-browser-dynamic": "2.0.0-rc.4",     "@angular/router": "3.0.0-beta.1",     "@angular/router-deprecated": "2.0.0-rc.2",     "@angular/upgrade": "2.0.0-rc.4",

can npm install instead of update in project directory?


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