0.22.0 Migration Guide

Changes

Underscores are no longer valid characters in app names. Please rename applications before upgrading.
Process type names specified in Procfile may no longer use characters not valid in DNS Label Names (RFC 1123).
The minimum Docker version is now 17.05.0.

The ps command has had a few removals as a result of a rewrite to Golang:

The ps:set-restart-policy command has been removed in favor the ps:set command.
The ps:restart-policy command has been removed in favor of the ps:report command.
The ps:rebuildall command has been removed in favor of calling the ps:rebuild with the --all flag instead of an app name.
The ps:restartall command has been removed in favor of calling the ps:restart with the --all flag instead of an app name.
The ps:stopall command has been removed in favor of calling the ps:stop with the --all flag instead of an app name.
The ps:startall command has been removed in favor of calling the ps:start with the --all flag instead of an app name.
The DOKKU_PROCFILE file is no longer located in the git directory for a given app on the server. It's location is currently not exposed.
The procfile-get-command plugin trigger no longer takes a procfile path as the final argument.
All ps functions have been removed. Please us a trigger as appropriate or file a PR to have a new trigger/wrapper function added.