But, I am trying to release image_common, which has not been released for about four months. Its GBP repo looks strange, it has a copy of the code in "master" and a tracks.yaml file in the "bloom" branch. I know the format has changed since then, but bloom does not seem to be able to find the tracks.

 https://github.com/ros-gbp/image_common-release

Any suggestions for how to get this repo working with the current bloom?

joq@vision-4:image_common-release$ git-bloom-config show hydro

Track 'hydro' does not exist.

joq@vision-4:image_common-release$ git co bloom 

Switched to branch 'bloom'

joq@vision-4:image_common-release$ ls

bloom.conf  tracks.yaml

joq@vision-4:image_common-release$ git-bloom-config show hydro

Track 'hydro' does not exist.

 joq@vision-4:image_common-release$ cat tracks.yaml 

tracks:

  hydro:

    actions:

    - bloom-export-upstream :{vcs_local_uri} :{vcs_type} --tag :{release_tag} --display-uri

      :{vcs_uri} --name :{name} --output-dir :{archive_dir_path}

    - git-bloom-import-upstream :{archive_path} :{patches} --release-version :{version}

      --replace

    - git-bloom-generate -y rosrelease :{ros_distro} --source upstream -i :{release_inc}

    - git-bloom-generate -y rosdebian --prefix release/:{ros_distro} :{ros_distro}

      -i :{release_inc}

    devel_branch: null

    last_version: 1.10.3

    name: upstream

    patches: null

    release_inc: '0'

    release_tag: :{version}

    ros_distro: hydro

    vcs_type: git

    vcs_uri: https://github.com/ros-perception/image_common.git

    version: :{auto}

--
 joq