You should probably do a full-backup as per the backup instructions and then let the upgrade wizard handle the conversion/transfer for you. If you are installing a new instance of XWiki and want to restore the old files/documents, then you need to say that so people can help you.
As for "what is merge copy", Vincent's response was very clear. If you don't understand what "merge" means, then this link will help - https://lmgtfy.com/?q=define%3A+merge Basically it means to combine the old configuration files and new configuration files. You do this "manually" by comparing the differences between the old and the new files and ending up with a new configuration that has your custom changes from the old file (where relevant) plus the new settings from the new file. In most cases though if you are doing an in-place upgrade, the wizard does this for you (or at least makes it easier). That being said, I agree with Cuong Hoang, you probably need to get someone with a bit more knowledge to do this for you. Kind regards, Mahomed Hussein Custodian Data Centre Email: maho...@custodiandc.com http://www.CustodianDC.com -----Original Message----- From: users [mailto:users-boun...@xwiki.org] On Behalf Of hamiazuhk26 Sent: 15 December 2016 09:57 To: firstname.lastname@example.org Subject: Re: [xwiki-users] Upgrading xwiki Thanks Vincent for fast reply. I didn't clear this statement. "you should not copy over the configuration files exactly since the new version could have added new configuration options”. If i can't copy over the configuration files exactly, so how do i copy the configuration files?. I am trying to copy the files in older version and paste it in newer version seems it is not copying and nothings change in newer version, that's confusing me. I have import a lot of document in older version and now want to back up and insert all doc to newer version. How do i make it works? Why, after i copy the web-INF files and paste it in new version, nothings change.. Please advice. -- View this message in context: http://xwiki.475771.n2.nabble.com/Upgrading-xwiki-tp7602115p7602127.html Sent from the XWiki- Users mailing list archive at Nabble.com.