Jira Core 9.5.x upgrade notes
Here are some important notes on upgrading to Jira Core 9.5.x.
Upgrading from 8.x to 9.x triggers full Jira reindex that causes some downtime during the process. If you’re on 8.x now, make sure you’ve estimated the downtime and set the best time for the upgrade.
Jira migrates to Log4j2
To take the extra step and ensure continued compliance, we’ve upgraded Log4j to version 2.17.2.
Since this is a breaking change, some effort may be required to ensure that any existing custom Log4j 1.x configurations are compatible with Jira 9.5:
If you’re an admin using a custom Log4j 1.x configuration with your Jira instance, you’ll need to adjust the new
log4j2.xmlfile to include those customizations. For more information about configuring Log4j 2, see Migrating from Log4j 1.x to 2.x and Configuring Log4j 2 in the official documentation.
If you’re an app vendor and your app uses a custom Log4j 1.x configuration, you’ll need to update your code. For more information on what this means for you, see Log4j upgrade details for third-party app vendors.
Support for Java 17 added
We’ve added support for Java 17 to boost Jira performance and strengthen instance stability.
Because of the added support for Java 17, you might get errors when installing Jira 9.5. Here's how to prevent this
The H2 database upgraded from 1.4.200 to 2.1.214
We’ve upgraded the embedded database H2 from version 1.4.200 to version 2.1.214. The upgrade has fixed a bunch of vulnerability issues. Make sure you’ve migrated your data to version 2.1.214 manually.
In-product diagnostics updates: new user interface, REST API, and performance metrics
We’ve made several updates and improvements to the In-product diagnostics (IPD) tool to help you monitor and maintain your instance performance:
User interface: You can now manage the IPD monitoring manually in the user interface. By default, the feature is enabled.
A new REST API endpoint: We’ve added the
/rest/api/2/monitoring/ipdendpoint for managing the IPD monitoring.
New IPD metrics: We’ve added HTTP connection and mail queue metrics for instance diagnostics. The metrics are available through JMX and the log file
Jira Temporary Directory Cleaner introduced
We’re introducing Jira Temporary Directory Cleaner to solve the issue of instances running out of space. With the help of the feature, during startup, Jira will automatically clean its temporary directory defined by the
The Cleaner is disabled by default. To enable it, set the
tmpdir.clean.on.startup property to
true. You can do it by adding a new argument in the
End of support announcements
This release does not include any end of support announcements. For the list of supported platforms, see Supported platforms.
See Preparing for Jira 9.5 for any important changes regarding apps.
Upgrading from Jira 8.x.x?
- See Upgrading Jira applications for complete upgrade procedures, including all available upgrade methods and pre-upgrade steps.
- For a more tailored upgrade, go to Jira administration > Applications > Plan your upgrade. We’ll recommend a version to upgrade to, run pre-upgrade checks, and provide you with a custom upgrade guide with step-by-step instructions.