Please upgrade to 2.3 here.
The 2.2 and earlier branches are no longer being updated.
Translate "Welcome Message"
I was able to translate almost all terms with a locale.php that resides in V2 ~/conf/ Folder.
Just the Welcome Message in the upper right box with the registration and login button doesn't like to get translated.
locale.php says this:
$Definition['It looks like you\'re new here. If you want to get involved, click one of these buttons!'] = 'Wenn Sie an den Diskussionen teilnehmen möchten, klicken Sie bitte hier:';
But it doesn't take effekt, does anyone have an idea for me?