If your version of Dokku is pre 0.3.0 (check with
dokku version), we recommend a fresh install on a new server.
For any security related updates, please follow our Twitter account. As Dokku does not run any daemons, the security risk introduced by our software is minimal.
Your operating system may occasionally provide security updates. We recommend setting unattended upgrades for your operating system. Here are some helpful links:
- Arch Linux System Maintenance
- CentOS Automatic Security Updates
- Debian Unattended Upgrades
- Ubuntu Unattended Upgrades
Docker releases updates periodically to their engine. We recommend reading their release notes and upgrading accordingly. Please see the Docker documentation for more details.
Before upgrading, check the migration guides to get comfortable with new features and prepare your deployment to be upgraded.
- Upgrading to 0.27
- Upgrading to 0.26
- Upgrading to 0.25
- Upgrading to 0.24
- Upgrading to 0.23
- Upgrading to 0.22
- Upgrading to 0.21
- Upgrading to 0.20
- Upgrading to 0.10
- Upgrading to 0.9
- Upgrading to 0.8
- Upgrading to 0.7
- Upgrading to 0.6
- Upgrading to 0.5
If you'll be updating docker or the herokuish package simultaneously, it's recommended
that you stop all applications before upgrading and rebuild afterwards. This is not
required if the upgrade only impacts the
Why do we recommend stopping all apps?
docker: Containers may be randomly reset during the upgrade process, resulting in requests being sent to the wrong containers. Acknowledging and scheduling downtime thus becomes much more important.
herokuish: While not required, it may be useful to take advantage of the latest base image. Herokuish changes do not cause issues unless the base OS changes, which may happen in minor or major releases.
# for 0.22.0 and newer versions, use dokku ps:stop --all # for versions between 0.11.4 and 0.21.4, use dokku ps:stopall # for versions between 0.8.1 and 0.11.3, use dokku --quiet apps:list | xargs -L1 dokku ps:stop # for versions versions older than 0.8.1, use dokku --quiet apps | xargs -L1 dokku ps:stop
After upgrading, you should rebuild the applications to take advantage of any new buildpacks that were released:
We provide a helpful binary called
dokku-update. This is a recommended package that:
- Can be installed separately, so upgrading Dokku will not affect the running of this package.
- Automates many of the upgrade instructions for you.
- Provides a clean way for us to further enhance the upgrade process in the future.
This binary is available on Debian and RPM-based systems from our package repositories under the name
dokku-update. When installing from source,
this is available from a separate Github repository at dokku/dokku-update.
If Dokku was installed in a Debian or Ubuntu system, via
apt-get install dokku or
bootstrap.sh, you can upgrade with
Upgrading from source
If you installed Dokku from source (less common), upgrade with:
To upgrade Herokuish from source, upgrade with: