Hi, First of all, thank you for a great product. I just finish the upgrade and had some negative experience.. Here's how it went.. - First, I tried to export my wiki to a xar.. At first it produced an invalid xar/zip archive.. then I figured that xwiki refuse to produce a valid archive whenever the 'include history' is not checked. - I checked the xar and found out there are couple of 0 sized file which should have contents.. good thing is that I noticed them.. - exported the database - Then I upgraded the binaries.. and merged the configurations.. all went well. - Then, I followed the recommendation regarding importing the new 1.3.1 default wiki. - WHen I import the default wiki, I received an error message saying that there 4 documents that I can't import.. - I tried to delete the existing page but received errors during deletion. - The error say something about the attachment, so I delete the attachments first.. after I deleted the attachments, I was able to delete the remaining pages - after deletion, I was able the import the the rest of the documents. Horray.. upgrade finished! - Then I noticed when I tried to login using invalid LDAP credential, I still get an "Internal Error" which is one of the reason I bother to upgrade is still here.. - I also noticed that 1.3.1 broke the footnote macro partially.. Other than these, everything seems to work fine! Thanks, Ben