Workflow increase version

Question

I have a simple email alert workflow like below:

If Current Item:Version = 1.0 then Pause for 0 days,0 hours,1 minutes then Email New document alert. Else then Pause for 0 days,0 hours,1 minutes Send Modified document Email alert. go to end of workflow.

If I have versioning Settings turned on with Require documents to be checked out before they can be edited it seems to work fine. If I remove the Required documents to be checked out then it seems to increase the versions.

So for example if I add a new document it starts off as version 1.0, but when the workflow runs it changes to version 2.0.
Does anyone know why?

Answer 1

It looks like that workflow is updating some properties of the file/item. Everytime that WF does that it increases file's version. It's common behaviour.