Preparing for Confluence 6.12


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This documentation is intended for Confluence developers who want to ensure that their existing plugins and add-ons are compatible with Confluence 6.12.

We plan to release weekly milestones during the development of Confluence 6.12. Watch this page to find out when a new milestone is available and what’s changed. We will publish formal release notes once we release a beta.

Latest milestone
10 September 20186.12.0-m82Download
Issues with this milestone?

Hit the Feedback button on the Confluence EAP header or raise an issue to tell us about it.

Changes in Confluence 6.12

Release Candidate 1 – 24 September 2018

Confluence 6.12 is ready for kick-off. There are no significant changes in this release candidate.

Beta 1 – 19 September 2018

In this beta we've fixed some issues with icons, and fixed some bugs here and there. We've also upgraded AUI to 7.9.7. 

For the full run-down on features in this release, head to Confluence 6.12.0-beta Release Notes.

Milestone 82 – 10 September 2018

New SVG icons in the editor insert menu

In last week's milestone, we announced some minor changes to the Insert menu in the editor. This included updating our icons to SVG format. If your app appears in the Insert menu, we recommend updating your icon to the following format:

Formatbase64 encoded SVG
Size16 x 16 pixels
ColorColor N500 specified in the Atlassian Design Guidelines

Milestone 72 – 3 September 2018

Managed Synchrony for Data Center

Confluence Data Center admins can now choose to let Confluence manage Synchrony (as in Confluence Server), or continue to run Synchrony in its own cluster.

If Confluence Data Center is started with the synchrony.service.url system property, it will connect to the Synchrony cluster via the URL provided. If this property is not passed, it will launch a Synchrony process on the current Confluence node.

We don't expect this change to have any impact on your apps.  

PDF export will be handled by the external process pool in Data Center

In Confluence Data Center 6.10 we introduced the idea of a "sandbox" (now known as the "external process pool") for memory or CPU intensive actions, like document conversion. In this release, we've focused on PDF exports. We're still working on this change, so there are a few outstanding issues.

In 6.12, when you export a space to PDF, we will export the content of each page to HTML, convert that HTML to PDF, and then finally merge all the pages together into a single PDF file. This will all be handled by the external process pool. 

Some customers found the term "sandbox" a little confusing, so we've renamed this the "external process pool".  The same pool of processes are used to handle document conversion and PDF export. The following system properties have been renamed, as they apply to the pool itself, not just document conversion 

  • document.conversion.sandbox.pool.size is now conversion.sandbox.pool.size 

  • document.conversion.sandbox.memory.limit.megabytes is now conversion.sandbox.memory.limit.megabytes

Updated documentation will be available shortly. 

Minor changes to the Insert menu in the editor

We've added the date lozenge to the Insert menu in the editor, and changed the order and icons for some of the items. 

Add-ons are now called Apps

We've renamed "add-ons" to "apps" throughout Confluence. For now you'll only see the change in our default (UK English) language pack. Others to follow. 

Milestone 48 – 27 August 2018

In this milestone:

  • AUI upgraded to 7.9.6

Milestone 24 – 20 August 2018

This is our first public milestone for Confluence 6.12. 

Java 11 and OpenJDK support coming soon

We will be adding support for both Oracle JDK 11, and OpenJDK 11 in an upcoming Confluence release. We encourage you to start  testing your add-ons with OpenJDK. 

Head to Java 11 and OpenJDK support for Atlassian Server & Data Center products for more information. 

Editor TinyMCE upgrade

As previously mentioned, we're currently working on upgrading the Confluence editor from TinyMCE version 3 to version 4. 

We don't expect this upgrade to land in Confluence 6.12, but do encourage you to start testing your add-ons now. See How to test your app with the upgraded TinyMCE 4 editor in our developer documentation to find out what you need to do. 

Looking for updated documentation? Check out the Confluence EAP space for the latest docs.

Did you know we’ve got a new developer community? Head to to check it out! We’ll be posting in the announcements category if when new EAP releases are available

Last modified on Jun 17, 2020

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