Download releases not having the newest Major/Minor version but receive a patch update

[amuessig]

Hi,
I am using the bosh-io-release resource to automatically check for new release versions and upload it to a local binary store.
This usually works well, however I have one issue with that, assuming the following:

• Concourse downloads release version 10.0.0
• Concourse downloads release version 11.0.0
  *A security patch is published which results in versions 10.0.1 and 11.0.1
• Concourse only downloads release version 11.0.1

The issue is that I am not always on the latest version of a release and want to receive updates for some old versions as well. However, in the aforementioned scenario, the 'old' version 10.0.1 is not seen as updated and not downloaded by my concourse pipeline, thus I have to do this manually.

My suggestion is to find a way to download old patches as well. This could also be restricted by a parameter that defines how many old versions are checked so that not every release version from ages ago is downloaded.

What do you think?