Ubuntu 25.10 Beta Testing

Join in the Testing Effort

The Ubuntu 25.10 Questing Quokka beta has just released and we need your help to spot and squash any bugs that may have crept in before the big release day. Testing is fun and easy! Start by simply downloading one of the various beta images (Found below), perform the variety of the relevant test cases found on the ISO Tracker and report your results. Tests can be performed in a virtual environment or directly on hardware. Testers can perform as few or as many test cases as they like.

Chat with fellow Testers

Testing is a community effort and a great opportunity to meet your fellow Ubuntu enthusiasts. Start chatting about your test findings on the Ubuntu Testing Matrix Space, on the Ubuntu Testers Telegram Group or on the #testing-cycles channel on the Ubuntu Hideout Discord server.

Download Beta Images

Below you will find links to the beta images for Ubuntu and its various official flavours. Please take note of the architecture you’re downloading as test cases may be different for each.

Ubuntu Images

Ubuntu Flavours are an important part of our ecosystem and also rely on community testers to ensure their releases are stable and ready for general use. While their testing process is typically very similar to Ubuntu, it’s important to follow their community’s additional testing guidance.
Edubuntu Images
Kubuntu Images
Lubuntu Images
Ubuntu Budgie Images
Ubuntu Cinnamon Images
Ubuntu Kylin Images
Ubuntu Studio Images
Ubuntu Unity Images
Xubuntu Images

Additional Learning Resources for Testers

Testing is an excellent way to contribute to the Ubuntu Community. Learn more about contributing via QA and Testing.

For new tester support and additional QA information, please check out our various learning resources:

Credits

Thank you to @meetdilip for supplying the art for the beta testing banner image!

4 Likes

Writing from system installer from Ubuntu 25.10 “Questing Quokka” - Beta amd64 (20250917.2)
https://iso.qa.ubuntu.com/qatracker/milestones/474/builds/340594/testcases/1761/results
bug about os-prober has been just fixed by last upgrade.

Not sure if anyone noticed but the amd64 iso for desktop Ubuntu 25.10 Beta seems to be missing from the download site: Ubuntu 25.10 (Questing Quokka) Beta

That’s because it’s on https://releases.ubuntu.com/25.10/.

Getting a 404 Not Found

Not possible. I just tried it. If you click on my link it takes you directly there.

I also fixed @aaronprisk 's post.

1 Like

Possible:

Also the link on Distrowatch gives a 404

Thank you, @eeickmeyer! :slight_smile:

1 Like

Clear your cache.

We can’t do a thing about that.

Thank you for helping out, clearing the cache seems to have done the trick. The link on DW also seems to work after that. :slight_smile:

I fixed the Kubuntu link, which was also leading to a 404.

Ubuntu MATE, there does not seem to be a beta link?

1 Like

Pulled the MATE as it doesn’t appear they have a building beta image right now.