Suggestions on how to update Angular version : <p>I have an angular project which has the version 6.1
But I've installed some custom libraries using <code>npm</code>.</p>

<p>So my question is:
What should I take care for updating?</p>

<p>I mean:
Do I have to use an external tool?
Or. Should I check every library dependency for upgrading the verions?</p>

<p>Thanks in advance.</p>
