Confluence 1.0rc6 fixes more bugs. Lots of them. There aren't many new and interesting features to report, although we have implemented the much-requested ability to mask email addresses and prevent public signup. Mostly, we've been toiling away fixing the lots of little problems that are getting in the way of us calling Confluence truly worthy of the 1.0 label.
See also: Issues Resolved for 1.0rc6
Private Confluence Configuration
In private mode, the only way to add users to Confluence is through the administrative interface: users can not sign up on their own. This way, you can prevent random passers-by from signing on to your Confluence installation. The site administrator can configure this in the general administration settings.
Email Address Privacy
Another much-requested feature, the site administrator has three options for email-address privacy:
Administrators should be aware that even in private mode, anyone in the confluence-admin group will still be listed (with their email address) on the administrators page, although their addresses will be masked.
Share User Management with JIRA
For sites with both a Confluence and a JIRA installation, Confluence can be set up to delegate its user-management to JIRA.
Template Field Types
Templates now support drop-down menus and text-input areas.
@variablename|textarea(5,10)@ will give you a 5 x 10 text-area called 'variablename'.
@variablename|list(one,two,three,four)@ will give you a drop-down list called 'variablename', with options one, two, three and four.

\{html\}
<p>This HTML is <b>inserted</b> into the page</p>
\{html\}
|
Random MySQL Disconnections
If you are running Confluence against MySQL using Confluence's built-in datasource, the connection with the database server may be lost after long periods of inactivity. We are pretty sure we have a fix for this, but since the bug takes several hours to manifest, we were not able to test the fix before the release of rc6.
The good news is that if we are right, it will only require a quick edit of your configuration file to implement the fix. Further announcements will be made both on confluence.atlassian.com, and the confluence-user mailing-list.
In the meantime, the workaround is to not use Confluence's built-in datasource, but to configure Confluence to use your application-server's JNDI datasources instead. Instructions for doing this with Tomcat can be found here, and if you need more help, don't hesitate to contact us at confluence-support@atlassian.com.
Latin Characters under Resin
We've tested creating pages with non-ASCII titles and content across several different browsers and several different operating systems, and they seem to be working reliably now... except on Resin. This will be quite noticeable since confluence.atlassian.com itself is running under Resin, but we have so far been unable to come up with a solution that works on this application server.
For users who need this functionality, we suggest running under Tomcat.
Also..