The output of run:detached now uses the container name - eg. node-js-app.run.1 - vs the container id.
The ID of cron tasks is now base36-encoded instead of base64-encoded.
The nginx.conf.sigil is now extracted when source code is extracted for a build and not from the built image. Users can specify alternative paths via the nginx-conf-sigil-path property of the nginx plugin. See the nginx documentation for more information on how to configure the nginx.conf.sigil path for your application.
The existing pre-restore hook has been renamed to scheduler-pre-restore. There is a new pre-restore hook that is triggered within the ps:restore command prior to restoring any apps.
Nginx init commands are now performed via systemctl on Ubuntu systems when /usr/bin/systemctl is available.
The DOKKU_WAIT_TO_RETIRE environment variable has been migrated to a checks property named wait-to-retire and will be ignored if set as an environment variable.
The Procfile is now extracted when source code is extracted for a build and not from the built image. Users can specify alternative paths via the procfile-path property of the ps plugin. See the process management documentation for more information on how to configure the Procfile path for your application.
The domains-setup trigger has been removed. Initial app domains will now be automatically setup during app creation.
The URLS file containing generated urls for an app is no longer generated or referenced. Users should retrieve app urls via the new domains-urls plugin trigger.
The common function get_app_urls has been removed. Users should retrieve app urls via the new domains-urls plugin trigger.