Err_ignore option for pipeline steps

I’ve read something on allowing failures for steps in pipelines in the closed github issues. But I can’t seem to get it to work.
I have a step which can fail but when it fails I want it to proceed the build as normal.

I’ve tried err_ignore but it doesn’t seem to accept it.

    image: debian
    err_ignore: true
      - /bin/false

This gives the error: Cannot configure both commands and custom attributes [err_ignore]

Is this intended? Is this somewhere documented?

err_ignore is implemented in the new runtime engine, which will be available in drone 0.9. The err_ignore parameter does not exist in 0.8, and will throw an error.

I’m using latest master. Isn’t it there?

It hasn’t been integrated yet