Bugfix release for the 4.0 release.

If you're using XWiki in virtual mode (ie. if you host multiple wikis on the same webapp), note that an important bug has been found in this version. It has been fixed in XWiki Enterprise 4.1.4. We thus recommend to not install this version and use 4.1.4 or later instead.
We've found an important issue in this release with our automatic data migration when upgrading from a version earlier than 4.0. Specifically the migration may fail when migrating wikis having stats, see XWIKI-7976 and when migrating DBs that was migrated from MySQL MyISAM previously, see XWIKI-7985. In addition we've also realized that the migration process can be slow on large XWiki databases and we have speed up the process. All these issue are fixed in release 4.1.3.

New and Noteworthy (since XWiki Enterprise 4.0)

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Tested Browsers

Here's the list of browsers tested with this version (i.e. browsers that we've tested as working - Check the list of supported browsers):

Firefox
13.0.1
Chrome
19

Tested Databases

For the list of supported databases please click here.

HyperSQL
2.2.8
MySQL
5.x
Oracle
11.x
PostgreSQL
9.x

Known issues

Backward Compatibility and Migration Notes

General Notes

If you're running in a multiwiki setup you'll also need to define the property xwiki.store.migration.databases=all to your xwiki.cfg file or explicitly name all databases to be migrated as in xwiki.store.migration.databases=db1,db2,....

You may also want to import the default wiki XAR in order to benefit from all the improvements listed above.

Always make sure you compare your xwiki.cfg and xwiki.properties files with the newest version since some configuration parameters were added. Note that you should add xwiki.store.migration=1 so that XWiki will attempt to automatically migrate your current database to the new schema. Make sure you backup your Database before doing anything.

API Breakages

No API where modified since 4.0.

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Created by Sergiu Dumitriu on 2012/05/22
   

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