Confluence will now log to the confluence.home directory by default. See CONF-6582.

As far as I can find, only one documentation update is required.

1) In http://confluence.atlassian.com/display/DOC/Installing+the+Confluence+EAR-WAR+edition.
Step 4 contains two identical XML configuration snippets. Both of these snippets should be simplified to

<Context path="/confluence" docBase="c:/applications/confluence-2.1.3/confluence" debug="0" reloadable="false"/>

The release note for 2.7 should mention the change to logging behaviour.
Previously standalone releases would log to <tomcat location>/logs/atlassian-confluence.log.
EAR/WAR releases would log to the console.

This has now been changed. Both editions follow the same default logging behaviour -
Logging will be to the console until Confluence has completed it's initial bootstrap. Then all logging will be to <confluence.home>/logs/atlassian-confluence.log. It should be noted that any logging that went to the console will be repeated into the confluence.home log.

Of course, as always customers are encouraged to think about and configure logging to their own requirements.