ImpressCMS 1.3.11 is on the horizon. It introduced, next to updates and a few security fixes, a new way of handling module versions. To take advantage of the new numbering, you will need to update your module version numbers.
ImpressCMS 1.3.11 has changed the way it manages version numbers from number to string. That allows us to introduce versions like 1.3.11 in the module version without having it displayed in a strange way. It also prepares for the introduction of Semantic Versioning, which will come along with the introduction of composer in 2.0.
In fact, there is only one very simple step to take : in the file icms_version.php, look for the variable 'version'. You should have something like this:
'version'=> 2.0,
Now simply add double quotes around the number, to make it appear like this:
'version'=> "2.0",
And you're done!