If you are a Tails enthusiast, testing ISO images of upcoming releases and future features is a great way to make Tails stronger. If you like playing with new features, identifying problems, and breaking things, then consider subscribing to the tails-testers@boum.org mailing list.

This is where we announce and report back on:

  • Release candidates for future releases
  • Feature previews for upcoming improvements
Do not rely on these experimental ISO images for security.
Only use them for testing purposes.

Release candidates

Two weeks before each release, we publish a release candidate. It has the same features as the upcoming release but needs testing to validate that they are working correctly.

The release candidates are also announced in our news and are available online.

What you can test on them:

  • The new features, as described in the Changelog, linked from the announcement.
  • Any other feature of Tails, for example the ones listed in our manual test suite.

Feature previews

Every now and then, we also publish ISO images to test more specifically a new feature we are working on.

They are available on http://nightly.tails.boum.org/ and are announced together with specific testing instructions.