[Mediawiki-l] update inside 1.5.x

[jdd]

hello,

sorry to ask again on a very often seen subject, but I
haven't really understood all :-(

I need to make update from 1.5.1 (or 2, I don't remember) to
the last one. anyway this happen at any new version.

what will I have to do to really don't have to reconfigure all?

is it enough to just save LocalSettings.php and replace all
the others things?

if I copy back LocalSettings.php, can I delete the config
folder and go on? or may I first configure then copy
LocalSettings.php?

thanks
jdd
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