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...	...	@@ -177,11 +177,14 @@
177	177	* The WebDAV feature is now configured using Servlet 3.0 annotations and is not bundled by default anymore.
178	178	** If you were using this feature, you should check the [[Instructions to install it manually>>extensions:Extension.WebDAV Server||anchor="HPrerequisites26InstallationInstructions"]].
179	179	** If you were not using it, you should make sure to edit your ##web.xml## to remove all the Servlet and Filter definitions for WebDAV (search for ##dav## in ##web.xml##).
180		-* With the addition of the new ##space:## link type in the XWiki syntax, any previously existing links to a subwiki named ##space## (e.g. ##~[~[space:My.Page]]##) will be broken and interpreted as being a link to the non-terminal page ##My.Page## in the current wiki (as per the definition of the new ##space:## link type). To fix this, any such links need to be changed to ##~[~[space:space:My.Page]]##, or to ##~[~[doc:space:My.Page]]## (depending on the linked document's type).
181	181	* Mail API Unique Message Identifier (since 7.4.1): In order to solve [[XWIKI-12165>>http://jira.xwiki.org/browse/XWIKI-12165]], the unique identifier of each mime message sent has been change to a SHA1 based on the ##Message-ID## header and the list of recipients of the mails, ensuring uniqueness during a newsletter or mailing sending. To introduce this change, the ##MailContentStore## and the ##MailListener API## has been broken, and now use a new ExtendedMimeMessage instead of the simple ##MimeMessage## for all arguments. The values ##messageId## returned or used as argument in the API is no more equivalent to the ##Message-ID## header, but is now the unique identifier returned by ##ExtendedMimeMessage#getUniqueMessageId()##. Finally, the ##MessageMimeMessageFactory## now returns cloned ##MimeMessage## without changing the ##Message-ID##.
182	182	* If you have custom Velocity Uberspectors that implement ##org.xwiki.velocity.introspection.ChainableUberspector## or extend ##org.xwiki.velocity.introspection.AbstractChainableUberspector##, update them to ##org.apache.velocity.util.introspection.ChainableUberspector## and ##org.apache.velocity.util.introspection.AbstractChainableUberspector##. If you have a custom list of uberspectors specified under ##runtime.introspector.uberspect.chainClasses##, just use the ##runtime.introspector.uberspect## property for defining the list. Otherwise your custom configuration will be ignored!
183	183	* We've introduced the possibility to explicitly create a link to a Space in XWiki Syntax 2.1, e.g. ##~[~[space:Space1.Space2]]##. However if you had a subwiki named ##space## the new notation will conflict with the syntax for referencing that wiki. Thus you'll need to edit existing links such as ##~[~[space:something]]## to ##~[~[doc:space:something]]##. And if you wish to reference a given space in the ##space## subwiki, you'd write ##~[~[space:space:something]]##.
184	184
	184	+== New Space prefix for wiki links ==
	185	+
	186	+We've introduced the possibility to explicitly create a link to a Space in XWiki Syntax 2.1, e.g. ##~[~[space:Space1.Space2]]##. However if you had a subwiki named ##space## the new notation will conflict with the syntax for referencing that wiki. Thus you'll need to edit existing links such as ##~[~[space:something]]## to ##~[~[doc:space:something]]##. And if you wish to reference a given space in the ##space## subwiki, you'd write ##~[~[space:space:something]]##.
	187	+
185	185	== API Breakages ==
186	186
187	187	The following APIs were modified since XWiki 7.4: