Jira Core 8.5.x upgrade notes

Jira Core release notes

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Here are some important notes on upgrading to Jira Core 8.5.

For details on the new features and improvements in this release, see the Jira Core 8.5.x release notes


 Upgrade notes

Increase pool-max-size

If you're upgrading from Jira 7.x to Jira 8.x we recommend changing the pool-max-size parameter to 40 in your dbconfig.xml before the upgrade. Leaving the default of 20 can sometimes lead to “ResultSet Closed” errors during re-indexing on 8.x. For information on implementing the change, see Tuning database connections.

8.5.4: Support for PostgreSQL 10

We've added PostgreSQL 10 to the list of supported platforms. For more info, see Supported platforms.

8.5.4: G1 GC enabled by default for Java 11

If you’re running Jira with Java 11, Garbage First Garbage Collection (G1 GC) will be enabled by default. We’ve already been recommending this method when tuning garbage collection, so now you’ll get it out of the box. G1 GC is more efficient and improves performance, especially in environments with large Java heap.

Java version

Default GC

Recommended GC

Java 11G1 GC
  • G1 GC for large Java heap
  • ParallelGC for small Java heap*
Java 8ParallelGCParallelGC

*Our performance tests have shown that you might benefit from ParallelGC if you have a relatively small Java heap. The difference is not big, but you can consider switching back to ParallelGC if you’re having problems with performance.

How do I change the GC method?

To change the default GC method:

  1. Stop Jira.

  2. Edit the setenv.sh/.bat file, and search for JVM_GC_ARGS. You’ll find available parameters described inside.

  3. If you’re running Jira as a service on Windows, you’ll also need to modify the gc-params-service.bat file.

8.5.4: Changes in the issue collector

The upcoming update of the Chrome browser introduces new cookie security features, which would essentially break the issue collectors embedded on separate domains. We’ve fixed this problem, but this brought some changes to how issue collectors work:

  • You can no longer match the submitter’s user session to make them the issue reporter. You can still match them by using their email address.

  • You don’t have to enable 3rd party cookies to make the issue collector work. We’ve removed this requirement, also dropping some error messages that reminded about it.

  • The project and issue key will no longer be displayed in the success message after submitting feedback (unless the project is open to Anyone on the web). We did this to improve security by not disclosing information about projects and issues.

For more info on the issue collector, see Using the issue collector.

OAuth 2.0 support for incoming mail in Jira 8.5.9

With Google and Microsoft planning to disable Basic Authentication, we want to make sure you can still add your comments to Jira and create issues using email. We're adding OAuth 2.0 support so that you can use it as an authentication method for Gmail or Microsoft Exchange online instead of password. 

Create your OAuth integration, then update your incoming mail server and leave the rest to us. We'll make sure the connection with your mail server works seamlessly. Learn more

 End of support announcements

In Jira 8.5, we're making the following changes:

  • Advance notice: end of support for Internet Explorer 11

    To allow us to continue to take advantage of modern web standards to deliver improved functionality and the best possible user experience across all of our products, we have decided to end support for Internet Explorer 11. 

    Jira 8.5 will be the last version to support Internet Explorer. 

    See End of support announcements  for full details. 

App developers

See Preparing for Jira 8.5 for any important changes regarding apps.

Upgrade procedure

Upgrading from a Jira version 8.x.x? 

See  Upgrading Jira applications  for complete upgrade procedures, including all available upgrade methods and pre-upgrade steps.

Last modified on Oct 12, 2020

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