v1.6.2

1. Enhancements

Mix

• [mix compile.erlang] Teach Mix erlang compiler alternative spelling for -behavior declaration
• [mix format] Support the :subdirectories configuration that points to other directories with their own .formatter.exs file. This is useful in umbrella applications. mix new --umbrella has also been changed to use this new configuration by default
• [mix format] Include the current environment for missing dependency errors

2. Bug fixes

Elixir

• [Code.Formatter] Ensure -> does not exceed line length
• [DynamicSupervisor] Properly tag error reports generated by dynamic supervisors so they can be properly translated by Logger
• [DynamicSupervisor] Consider extra arguments during child restart
• [Kernel] Ensure arguments given to a guard defined with defguard are evaluated in the correct order
• [Module] Do not remove docs for previous function declaration when @impl true is used
• [Supervisor] Ensure use Supervisor properly adds the @behaviour Supervisor annotation

Mix

• [Mix.Shell] Bring back Mix.Shell.cmd/2 - this arity was defined via a default argument that was accidentally removed