Changes for page Release Notes for XWiki 5.2 Milestone 2

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• Page properties (2 modified, 0 added, 0 removed)

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Author

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1		-XWiki.mflorea
	1	+XWiki.VincentMassol

Content

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108	108	)))
109	109	* New [[Instance Module>>extensions:Extension.Instance Module]] used to compute a unique id for each XWiki instance (used by the [[Active Installs Client API>>extensions:Extension.Active Installs Client API]]
110	110
111		-See the [[full list of JIRA issues>>http://jira.xwiki.org/sr/jira.issueviews:searchrequest-printable/temp/SearchRequest.html?jqlQuery=project+in+%28XCOMMONS%2C+XRENDERING%2C+XWIKI%2C+XE%2C+XEM%29+and+status+%3D+Closed+and+resolution+%3D+Fixed+and+fixVersion+%3D+%22<version>%22&tempMax=1000]] fixed in this release.
	111	+See the [[full list of JIRA issues>>http://jira.xwiki.org/sr/jira.issueviews:searchrequest-printable/temp/SearchRequest.html?jqlQuery=project+in+%28XCOMMONS%2C+XRENDERING%2C+XWIKI%2C+XE%2C+XEM%29+and+status+%3D+Closed+and+resolution+%3D+Fixed+and+fixVersion+%3D+%225.2-milestone-2%22&tempMax=1000
	112	+]] fixed in this release.
112	112
113	113	= For Developers =
114	114
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156	156	= Known issues =
157	157
158	158	* [[Bugs we know about>>http://jira.xwiki.org/secure/IssueNavigator.jspa?reset=true&jqlQuery=category+%3D+%22Top+Level+Projects%22+AND+issuetype+%3D+Bug+AND+resolution+%3D+Unresolved+ORDER+BY+updated+DESC]]
	160	+* If you're migrating an XWiki instance using PostgreSQL or Oracle you may get [[this error>>http://jira.xwiki.org/browse/XWIKI-9473]] (fixed in XWiki 5.2). The workaround is to remove the ##hibernate_sequence## sequence prior to starting XWiki (for the main wiki and all subwikis).
159	159
160	160	= Backward Compatibility and Migration Notes =
161	161
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167	167	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.
168	168	{{/warning}}
169	169
	172	+== Issues specific to XWiki 5.2 Milestone 2 ==
	173	+
	174	+* XWiki now creates a unique identifier in the database (this is used by the new Active Installs module and will be used in the future by the Extension Manager to identify your instance for example). You need to verify that your ##hibernate.cfg.xml## file has the following mapping definition next to the existing mapping definitions:(((
	175	+{{code}}
	176	+...
	177	+ <mapping resource="instance.hbm.xml"/>
	178	+...
	179	+{{/code}}
	180	+)))
	181	+
170	170	== API Breakages ==
171	171
172	172	The following APIs were modified since XWiki 5.1: