How to revert a software update in Eclipse

I think the last update of an Eclipse plugin is causing errors, how can I revert to the version previous to the latest update ?

(the plugin is PHPsrc :



To revert, select menu Help > About Eclipse.

In the dialog box, click the Installation Details button. Then select the Installation History tab.

Now you'll see a list of previous configurations; you can select one of them, and the Revert button will be enabled. Now you can click it to revert to the selected configuration.