# Plug-out Upgrade

When new features are introduced in BOUML these ones are not managed by your (now old) plus-outs, to automatically upgrade them, the distribution of BOUML contains the upgrade plug-out.

Its goal is to upgrade the plug-outs not made from the last up to date version of the plug-out empty, adding the missing features.

It is applied through the entry plug-out upgrade of the menu Tools (this entry doesn't appears while a dialog is opened or when the project is not a plug-out) :

When it is applied, the plug-out ask you for a confirmation, thus it adds the needed classes etc ... When all is done a new dialog appears for information and a save-as is called asking you to save your plug-out in a new location, thus in all the cases the project is closed.

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