We are seeing this as well for internal Docker image update tags (either incoming or outgoing) have a prefixing v then the outputs.update-type is null

[Alirazi1976123]

We are seeing this as well for internal Docker image update tags (either incoming or outgoing) have a prefixing v then the outputs.update-type is null

We have tried every variant of this and we have found (using internal docker builds) the following:

v1.5.1 to v1.5.2 -> outputs.update-type: null
v1.5.1 to 1.5.2 -> outputs.update-type: null
1.5.2 to v1.5.3 -> outputs.update-type: null
1.5.2 to 1.5.3 -> outputs.update-type: patch

While it is true that this sort of tag is not strictly semver compliant, I would expect Dependabot to be able to infer this sort of thing with a non-complex tag.

I did just create an issue in Dependabot Core but I looked here to see this and thought it was out issue so I closed it.

Originally posted by @svenjr in dependabot/fetch-metadata#339 (comment)