This is the release notes for XWiki Commons, XWiki Rendering and XWiki Platform. They share the same release notes as they are released together and have the same version.

This is a bugfix release that covers important issues that we have discovered since XWiki 12.6.5 has been released.

New and Noteworthy (since XWiki 12.6.5)

Full list of issues fixed and Dashboard for 12.6.6.

Translations

The following translations have been updated: 

• Danish
• German
• Spanish
• Japanese

Tested Browsers & Databases

Here is the list of browsers we support and how they have been tested for this release:

	Browser	Tested on:
	Google Chrome 87	Not Tested
	Microsoft Edge 87	Not Tested
	Mozilla Firefox 83	Jira Tickets Marked as Fixed in the Release Notes
	Internet Explorer 11	Tests run and results
	Safari 14	Not Tested

Here is the list of databases we support and how they have been tested for this release:

	Database	Tested on:
	HyperSQL 2.5.1	Not Tested
	Oracle 19c	Jira Tickets Marked as Fixed in the Release Notes
	MySQL 8	Tests run and results
	MariaDB 10.5	Not Tested
	PostgreSQL 13	Not Tested

Here is the list of Servlet Containers we support and how they have been tested for this release:

	Servlet Container	Tested on:
	Tomcat 9.0.41	Jira Tickets Marked as Fixed in the Release Notes Tests run and results
	Jetty 9.4.29 (XWiki Standalone packaging)
	Jetty 9.4.29	Not Tested

Known issues

• Bugs we know about

Backward Compatibility and Migration Notes

General Notes

• When upgrading make sure you compare and merge the following XWiki configuration files since some parameters may have been modified, removed or added:
  • xwiki.cfg
  • xwiki.properties
  • web.xml
  • hibernate.cfg.xml
• Add xwiki.store.migration=1 in xwiki.cfg so that XWiki will attempt to automatically migrate your current database to any new schema. Make sure you backup your Database before doing anything.

API Breakages

The following APIs were modified since XWiki 12.6.5:

• Revert a refactoring done by mistake
  • Violation type:
    java.class.noLongerInheritsFromClass
  • Code:
    ## Old:
    class org.xwiki.rendering.wikimodel.xhtml.impl.LocalEntityResolver
    
    ## New:
    class org.xwiki.rendering.wikimodel.xhtml.impl.LocalEntityResolver

Credits

The following people have contributed code and translations to this release (sorted alphabetically):

Eduard Moraru
Marius Dumitru Florea
Simon Urli
Thomas Mortagne
Vincent Massol