How to upgrade new version of Eclipse instead of using new downloaded package?

Question

I am looking for steps to upgrade my current Eclipse version (Mars) to latest version (Oxygen) because I have been using Mars for past long time so that contains all the settings, plugins and all the histories so I would like to retain the same and also upgrade to new version.

Is this possible?

Note: It can be any type of Eclipse for any kind of development like Java, C/C++, PHP, JavaScript and Testers.

Answer 1

1. In Window > Preferences: Install/Update > Available Software Site make sure that the Latest Eclipse Release update site exists and is checked. Otherwise (in older versions or when this update site has been removed in newer versions), click Add..., enter the update site location https://download.eclipse.org/releases/latest and click OK.
2. Help > Check for Updates

See also Eclipse Wiki - FAQ How do I upgrade Eclipse IDE?