From version < 20.3 >
edited by Vincent Massol
on 2012/07/19
To version < 21.1 >
edited by Denis Gervalle
on 2012/12/20
< >
Change comment: Add an error warning about database migration for safety.

Summary

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1 -XWiki.VincentMassol
1 +XWiki.dgervalle
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8 8  We thus recommend to not install this version and use 4.1.2 or later instead.
9 9  {{/error}}
10 10  
11 +{{error}}
12 +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>>http://jira.xwiki.org/browse/XWIKI-7976]] and when migrating DBs that was migrated from MySQL MyISAM previously, see [[XWIKI-7985>>http://jira.xwiki.org/browse/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.
13 +{{/error}}
14 +
11 11  This is the second release of the 4.x cycle ([[Roadmap>>Main.Roadmap]]). This release brings Extension Manager improvements such as merging of configuration documents during extension upgrade, a more gentle learning curve by hiding internal documents from non-technical users, and lots of goodies for the developers such as easy sharing of variables between scripts in different languages.
12 12  
13 13  = New and Noteworthy (since XWiki Enterprise 4.0 version) =

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